{"id":67,"date":"2026-04-05T20:26:08","date_gmt":"2026-04-05T12:26:08","guid":{"rendered":"http:\/\/43.136.56.131\/?p=67"},"modified":"2026-04-08T14:57:52","modified_gmt":"2026-04-08T06:57:52","slug":"%e9%ab%98%e5%8f%af%e7%94%a8%e9%9b%86%e7%be%a4%e8%bd%af%e4%bb%b6keepalived","status":"publish","type":"post","link":"https:\/\/mm1.asia\/index.php\/2026\/04\/05\/%e9%ab%98%e5%8f%af%e7%94%a8%e9%9b%86%e7%be%a4%e8%bd%af%e4%bb%b6keepalived\/","title":{"rendered":"\u9ad8\u53ef\u7528\u96c6\u7fa4\u8f6f\u4ef6Keepalived"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\" id=\"okYw2\">\u4e00\u3001HA\u96c6\u7fa4\u4e2d\u7684\u76f8\u5173\u672f\u8bed<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u3a172db6\"><strong>1.\u8282\u70b9 (node)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ua82539f7\">    \u8fd0\u884c\u96c6\u7fa4\u8fdb\u7a0b\u7684\u4e00\u4e2a\u72ec\u7acb\u4e3b\u673a\uff0c\u79f0\u4e3a\u8282\u70b9\uff0c\u8282\u70b9\u662f\u96c6\u7fa4\u7684\u6838\u5fc3\u7ec4\u6210\u90e8\u5206\uff0c\u6bcf\u4e2a\u8282\u70b9\u4e0a\u8fd0\u884c\u7740\u64cd\u4f5c\u7cfb\u7edf\u548c\u9ad8\u53ef\u7528\u8f6f\u4ef6\u670d\u52a1\uff0c\u5728\u9ad8\u53ef\u7528\u96c6\u7fa4\u4e2d\uff0c\u8282\u70b9\u6709\u4e3b\u6b21\u4e4b\u5206\uff0c\u5206\u522b\u79f0\u4e3a\u4e3b\u8282\u70b9\u548c\u5907\u7528\/\u5907\u4efd\u8282\u70b9\uff0c\u6bcf\u4e2a\u8282\u70b9\u62e5\u6709\u552f\u4e00\u7684\u4e3b\u673a\u540d\uff0c\u5e76\u4e14\u62e5\u6709\u5c5e\u4e8e\u81ea\u5df1\u7684\u4e00\u7ec4\u8d44\u6e90\uff0c\u4f8b\u5982\uff0c\u78c1\u76d8\u3001\u6587\u4ef6\u7cfb\u7edf\u3001\u7f51\u7edc\u5730\u5740\u548c\u5e94\u7528\u670d\u52a1\u7b49\u3002\u4e3b\u8282\u70b9\u4e0a\u4e00\u822c\u8fd0\u884c\u7740\u4e00\u4e2a\u6216\u591a\u4e2a\u5e94\u7528\u670d\u52a1\u3002\u800c\u5907\u7528\u8282\u70b9\u4e00\u822c\u5904\u4e8e\u76d1\u63a7\u72b6\u6001\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ufea5cc5d\"><strong>2.\u8d44\u6e90(resource)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ue6b36dcb\">    \u8d44\u6e90\u662f\u4e00\u4e2a\u8282\u70b9\u53ef\u4ee5\u63a7\u5236\u7684\u5b9e\u4f53\uff0c\u5e76\u4e14\u5f53\u8282\u70b9\u53d1\u751f\u6545\u969c\u65f6\uff0c\u8fd9\u4e9b\u8d44\u6e90\u80fd\u591f\u88ab\u5176\u5b83\u8282\u70b9\u63a5\u7ba1\uff0c\u96c6\u7fa4\u8f6f\u4ef6\u4e2d\uff0c\u53ef\u4ee5\u5f53\u505a\u8d44\u6e90\u7684\u5b9e\u4f53\u6709:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u78c1\u76d8\u5206\u533a\u3001\u6587\u4ef6\u7cfb\u7edf<\/li>\n\n\n\n<li>IP\u5730\u5740VIP<\/li>\n\n\n\n<li>\u5e94\u7528\u7a0b\u5e8f\u670d\u52a1<\/li>\n\n\n\n<li>NFS\u6587\u4ef6\u7cfb\u7edf<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u2bd76f7a\"><strong>3.\u4e8b\u4ef6(event)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uae0c28b6\">    \u4e5f\u5c31\u662f\u96c6\u7fa4\u4e2d\u53ef\u80fd\u53d1\u751f\u7684\u4e8b\u60c5\uff0c\u4f8b\u5982\u8282\u70b9\u7cfb\u7edf\u6545\u969c\u3001\u7f51\u7edc\u8fde\u901a\u6545\u969c\u3001\u7f51\u5361\u6545\u969c\u3001\u5e94\u7528\u7a0b\u5e8f\u6545\u969c\u7b49\u3002\u8fd9\u4e9b\u4e8b\u4ef6\u90fd\u4f1a\u5bfc\u81f4\u8282\u70b9\u7684\u8d44\u6e90\u53d1\u751f\u8f6c\u79fb\uff0c\u96c6\u7fa4\u7684\u6d4b\u8bd5\u4e5f\u662f\u57fa\u4e8e\u8fd9\u4e9b\u4e8b\u4ef6\u6765\u8fdb\u884c\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u2d18f02b\"><strong>4.\u52a8\u4f5c(action)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"udfaed10d\">    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Cluster\uff0c\u9ad8\u53ef\u7528\u7684\u542b\u4e49\u662f\u6700\u5927\u9650\u5ea6\u7684\u53ef\u4ee5\u4f7f\u7528\uff0c\u4ece\u96c6\u7fa4\u7684\u540d\u5b57\u4e0a\u53ef\u4ee5\u770b\u51fa\uff0c\u6b64\u7c7b\u96c6\u7fa4\u5b9e\u73b0\u7684\u529f\u80fd\u662f\u4fdd\u969c\u7528\u6237\u7684\u5e94\u7528<strong>\u7a0b\u5e8f\u6301\u4e45\u3001\u4e0d\u95f4\u65ad\u7684\u63d0\u4f9b\u670d\u52a1<\/strong>\u3002\u5f53\u5e94\u7528\u7a0b\u5e8f\u51fa\u73b0\u6545\u969c\uff0c\u6216\u8005\u7cfb\u7edf\u786c\u4ef6\u3001\u7f51\u7edc\u51fa\u73b0\u6545\u969c\u65f6\uff0c<strong>\u5e94\u7528\u53ef\u4ee5\u81ea\u52a8\u3001\u5feb\u901f\u4ece\u4e00\u4e2a\u8282\u70b9\u5207\u6362\u5230\u53e6\u4e00\u4e2a\u8282\u70b9<\/strong>\uff0c\u4ece\u800c\u4fdd\u8bc1\u5e94\u7528\u6301\u7eed\u3001\u4e0d\u95f4\u65ad\u7684\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\uff0c\u8fd9\u5c31\u662f\u9ad8\u53ef\u7528\u96c6\u7fa4\u5b9e\u73b0\u7684\u529f\u80fd\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-12.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"630\" height=\"318\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-12.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-72\"  sizes=\"auto, (max-width: 630px) 100vw, 630px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u1e553b88\">    <strong>\u53cc\u673a\u70ed\u5907<\/strong>\u662f\u6700\u7b80\u5355\u7684\u5e94\u7528\u6a21\u5f0f\uff0c\u5373\u7ecf\u5e38\u8bf4\u7684<strong>active\/standby<\/strong>\u65b9\u5f0f\uff0c\u5b83\u4f7f\u7528\u4e24\u53f0\u670d\u52a1\u5668\uff0c\u4e00\u53f0\u4f5c\u4e3a\u4e3b\u670d\u52a1\u5668(action)\uff0c\u8fd0\u884c\u5e94\u7528\u7a0b\u5e8f\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\uff0c\u53e6\u4e00\u53f0\u4f5c\u4e3a\u5907\u673a(Stondby)\uff0c\u5b89\u88c5\u548c\u4e3b\u670d\u52a1\u5668\u4e00\u6837\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u4f46\u662f\u5e76\u4e0d\u542f\u52a8\u670d\u52a1\uff0c\u5904\u4e8e\u5f85\u673a\u72b6\u6001\u3002<strong>\u4e3b\u673a\u548c\u5907\u673a\u4e4b\u95f4\u901a\u8fc7\u5fc3\u8df3\u6280\u672f\u76f8\u4e92\u76d1\u63a7<\/strong>\uff0c\u76d1\u63a7\u7684\u8d44\u6e90\u53ef\u4ee5\u662f\u7f51\u7edc\u3001\u64cd\u4f5c\u7cfb\u7edf\u3001\u4e5f\u53ef\u4ee5\u662f\u670d\u52a1\uff0c\u7528\u6237\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u8981\uff0c\u9009\u62e9\u9700\u8981\u76d1\u63a7\u7684\u8d44\u6e90\uff0c\u5f53\u5907\u673a\u76d1\u63a7\u5230\u4e3b\u673a\u7684\u67d0\u4e2a\u8d44\u6e90\u51fa\u73b0\u6545\u969c\u65f6\uff0c\u6839\u636e\u9884\u5148\u8bbe\u5b9a\u597d\u7684\u7b56\u7565\uff0c\u9996\u5148\u5c06IP\u5207\u6362\u8fc7\u6765\uff0c\u7136\u540e\u5c06\u5e94\u7528\u7a0b\u5e8f\u670d\u52a1\u4e5f\u63a5\u7ba1\u8fc7\u6765\uff0c\u63a5\u7740\u5c31\u7531\u5907\u673a\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\uff0c\u7531\u4e8e\u5207\u6362\u8fc7\u7a0b\u65f6\u95f4\u975e\u5e38\u7aef\uff0c\u7528\u6237\u6839\u672c\u611f\u89c9\u4e0d\u5230\u7a0b\u5e8f\u51fa\u4e86\u95ee\u9898\uff0c\u800c\u4e14\u8fd8\u8fdb\u884c\u4e86\u5207\u6362\uff0c\u4ece\u800c<strong>\u4fdd\u969c\u4e86\u5e94\u7528\u7a0b\u5e8f\u6301\u4e45\u3001\u4e0d\u95f4\u65ad\u7684\u670d\u52a1\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u0eaf6eaf\">    \u9ad8\u53ef\u7528\u96c6\u7fa4\u4e00\u822c\u662f\u901a\u8fc7\u9ad8\u53ef\u7528\u8f6f\u4ef6\u6765\u5b9e\u73b0\u7684\uff0c\u5728linux\u4e0b\u5e38\u7528\u7684\u9ad8\u53ef\u7528\u8f6f\u4ef6\u6709:<strong>\u5f00\u6e90heartbea HA\u3001Redhat\u63d0\u4f9b\u7684RHCS\u3001\u5546\u4e1a\u8f6f\u4ef6ROSE\u3001keepalived\u7b49<\/strong>\u3002\u5728\u4e0b\u9762\u7684\u7ae0\u8282\u4e2d\u6211\u4eec\u4f1a\u8be6\u7ec6\u4ecb\u7ecd\u7684<strong>keepalived<\/strong>\u914d\u7f6e\u548c\u4f7f\u7528\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"eDPbk\">b. \u8d1f\u8f7d\u5747\u8861\u96c6\u7fa4<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ue76ddbaa\">    \u8d1f\u8f7d\u5747\u8861\u7cfb\u7edf\u7684\u82f1\u6587\u5168\u79f0\u4e3aLoad Balance Cluster\uff0c\u7b80\u79f0LB ClUuster\uff0c\u8d1f\u8f7d\u5747\u8861\u96c6\u7fa4\u4e5f\u662f\u6709\u4e24\u53f0\u6216\u8005\u4e24\u53f0\u4ee5\u4e0a\u7684\u670d\u52a1\u5668\u7ec4\u6210\uff0c\u5206\u4e3a\u524d\u7aef\u8d1f\u8f7d\u8c03\u5ea6\u548c\u540e\u7aef\u8282\u70b9\u670d\u52a1\u4e24\u4e2a\u90e8\u5206\uff0c\u8d1f<strong>\u8f7d\u8c03\u5ea6\u90e8\u5206\u8d1f\u8d23\u628a\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u6309\u7167\u4e0d\u540c\u7684\u7b56\u7565\u5206\u914d\u7ed9\u540e\u7aef\u670d\u52a1\u8282\u70b9<\/strong>\uff0c\u800c\u540e\u7aef\u8282\u70b9\u662f\u771f\u6b63\u63d0\u4f9b\u5e94\u7528\u7a0b\u5e8f\u670d\u52a1\u7684\u90e8\u5206\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u3bedf070\">    \u4e0eHACiuster\u4e0d\u540c\u7684\u662f\uff0c<strong>\u5728\u8d1f\u8f7d\u5747\u8861\u96c6\u7fa4\u4e2d\uff0c\u6240\u6709\u7684\u540e\u7aef\u8282\u70b9\u90fd\u5904\u4e8e\u6d3b\u52a8\u72b6\u6001\uff0c<\/strong>\u5b83\u4eec\u90fd\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\uff0c\u5206\u644a\u7cfb\u7edf\u7684\u5de5\u4f5c\u8d1f\u8f7d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ud366a589\">    \u8d1f\u8f7d\u5747\u8861\u96c6\u7fa4<strong>\u53ef\u4ee5\u628a\u4e00\u4e2a\u9ad8\u8d1f\u8377\u7684\u5e94\u7528\u5206\u6563\u5230\u591a\u4e2a\u8282\u70b9\u6765\u5171\u540c\u5b8c\u6210<\/strong>\uff0c\u9002\u7528\u4e8e\u4e1a\u52a1\u7e41\u5fd9\u3001\u5927\u8d1f\u8377\u8bbf\u95ee\u7684\u5e94\u7528\u7cfb\u7edf\uff0c\u4f46\u662f\u5b83\u4e5f\u6709\u4e0d\u8db3\u7684\u5730\u65b9:\u5f53\u4e00\u4e2a\u8282\u70b9\u51fa\u73b0\u6545\u969c\u65f6\uff0c\u524d\u7aef\u8c03\u5ea6\u7cfb\u7edf\u5e76\u4e0d\u77e5\u9053\u6b64\u8282\u70b9\u5df2\u7ecf\u4e0d\u80fd\u63d0\u4f9b\u670d\u52a1\uff0c\u4ecd\u7136\u4f1a\u628a\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u8c03\u5ea6\u5230\u6545\u969c\u8282\u70b9\u4e0a\u6765\uff0c\u8fd9\u6837\u8bbf\u95ee\u5c31\u4f1a\u5931\u8d25\uff0c\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c<strong>\u8d1f\u8f7d\u8c03\u5ea6\u7cfb\u7edf\u4e00\u822c\u90fd\u5f15\u5165\u4e86\u8282\u70b9\u76d1\u63a7\u7cfb\u7edf\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u00b68ed7\">    <strong>\u8282\u70b9\u76d1\u63a7\u7cfb\u7edf\u4f4d\u4e8e\u524d\u7aef\u8d1f\u8f7d\u8c03\u5ea6\u673a\u4e0a<\/strong>\uff0c\u8d1f\u8d23\u76d1\u63a7\u4e0b\u9762\u7684\u670d\u52a1\u8282\u70b9\uff0c<strong>\u5f53\u67d0\u4e2a\u8282\u70b9\u51fa\u73b0\u6545\u969c\u540e\uff0c\u8282\u70b9\u76d1\u63a7\u7cfb\u7edf\u4f1a\u81ea\u52a8\u5c06\u6545\u969c\u8282\u70b9\u4ece\u96c6\u7fa4\u4e2d\u5254\u9664\uff0c<\/strong>\u5f53\u6b64\u8282\u70b9\u6062\u590d\u6b63\u5e38\u540e\uff0c\u8282\u70b9\u76d1\u63a7\u7cfb\u7edf\u53c8\u4f1a\u81ea\u52a8\u5c06\u5176\u52a0\u5165\u96c6\u7fa4\u4e2d\uff0c\u800c\u8fd9\u4e00\u5207\uff0c\u5bf9\u7528\u6237\u6765\u8bf4\u662f\u5b8c\u5168\u900f\u660e\u7684\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-13.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"849\" height=\"417\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-13.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-73\"  sizes=\"auto, (max-width: 849px) 100vw, 849px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u00b68ed7\">c. \u5206\u5e03\u5f0f\u8ba1\u7b97\u96c6\u7fa4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u886f794b\">    \u5206\u5e03\u5f0f\u8ba1\u7b97\u96c6\u7fa4\uff0c\u8fd9\u7c7b\u96c6\u7fa4\u81f4\u529b\u4e8e\u63d0\u4f9b\u5355\u4e2a\u8ba1\u7b97\u673a\u6240\u4e0d\u80fd\u63d0\u4f9b\u7684\u5f3a\u5927\u7684\u8ba1\u7b97\u80fd\u529b\uff0c\u5305\u62ec\u6570\u503c\u8ba1\u7b97\u548c\u6570\u636e\u5904\u7406\uff0c\u5e76\u4e14\u503e\u5411\u4e8e\u8ffd\u6c42\u7efc\u5408\u6027\u80fd\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-14-1024x362.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"362\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-14-1024x362.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-74\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u886f794b\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"azzb0\">\u4e8c\u3001Keepalived\u7b80\u4ecb<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u44e2712d\">    Keepalived\u662fLinux\u4e0b\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684\u9ad8\u53ef\u7528\u89e3\u51b3\u65b9\u6848\uff0c\u5b83\u4e0eHACMP\u3001RoseHA\u5b9e\u73b0\u7684\u529f\u80fd\u7c7b\u4f3c\uff0c\u90fd\u53ef\u4ee5\u5b9e\u73b0\u670d\u52a1\u6216\u8005\u7f51\u7edc\u7684\u9ad8\u53ef\u7528\uff0c\u4f46\u662f\u53c8\u6709\u5dee\u522b:HACMP\u662f\u4e00\u4e2a\u4e13\u4e1a\u7684\u3001\u529f\u80fd\u5b8c\u5584\u7684\u9ad8\u53ef\u7528\u8f6f\u4ef6\uff0c\u5b83\u63d0\u4f9b\u4e86HA\u8f6f\u4ef6\u6240\u9700\u7684\u57fa\u672c\u529f\u80fd\uff0c\u6bd4\u5982\u5fc3\u8df3\u68c0\u6d4b\u548c\u8d44\u6e90\u63a5\u7ba1\uff0c\u76d1\u6d4b\u96c6\u7fa4\u4e2d\u7684\u7cfb\u7edf\u670d\u52a1\uff0c\u5728\u7fa4\u96c6\u8282\u70b9\u95f4\u8f6c\u79fb\u5171\u4eabIP\u5730\u5740\u7684\u6240\u6709\u8005\u7b49\uff0cHACMP\u529f\u80fd\u5f3a\u5927\uff0c\u4f46\u662f\u90e8\u7f72\u548c\u4f7f\u7528\u76f8\u5bf9\u6bd4\u8f83\u9ebb\u70e6\uff0c\u540c\u65f6\u4e5f\u662f\u5546\u4e1a\u5316\u8f6f\u4ef6;\u4e0eHACMP\u76f8\u6bd4\uff0c           Keepalived\u4e3b\u8981\u662f\u901a\u8fc7\u865a\u62df\u8def\u7531\u5197\u4f59\u6765\u5b9e\u73b0\u9ad8\u53ef\u7528\u529f\u80fd\uff0c\u867d\u7136\u5b83\u6ca1\u6709HACMP\u529f\u80fd\u5f3a\u5927\uff0c\u4f46Keepalived\u90e8\u7f72\u548c\u4f7f\u7528\u975e\u5e38\u7b80\u5355\uff0c\u6240\u6709\u914d\u7f6e\u53ea\u9700\u4e00\u4e2a\u914d\u7f6e\u6587\u4ef6\u5373\u53ef\u5b8c\u6210\u3002\u8fd9\u4e5f\u662f\u672c\u8bfe\u7a0b\u91cd\u70b9\u4ecb\u7ecdKeepalived\u7684\u539f\u56e0\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"xUGmp\">1\u3001Keepalived\u7684\u7528\u9014<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u7d150654\">    Keepalived\u8d77\u521d\u662f\u4e3aLVS\u8bbe\u8ba1\u7684\uff0c\u4e13\u95e8\u7528\u6765\u76d1\u63a7\u96c6\u7fa4\u7cfb\u7edf\u4e2d\u5404\u4e2a\u670d\u52a1\u8282\u70b9\u7684\u72b6\u6001\u3002\u5b83\u6839\u636elayer3,4&amp;5\u4ea4\u6362\u673a\u5236\u68c0\u6d4b\u6bcf\u4e2a\u670d\u52a1\u8282\u70b9\u7684\u72b6\u6001\uff0c\u5982\u679c\u67d0\u4e2a\u670d\u52a1\u8282\u70b9\u51fa\u73b0\u5f02\u5e38\uff0c\u6216\u5de5\u4f5c\u51fa\u73b0\u6545\u969c\uff0cKeepalived\u5c06\u68c0\u6d4b\u5230\uff0c\u5e76\u5c06\u51fa\u73b0\u6545\u969c\u7684\u670d\u52a1\u8282\u70b9\u4ece\u96c6\u7fa4\u7cfb\u7edf\u4e2d\u5254\u9664\uff0c\u800c\u5728\u6545\u969c\u8282\u70b9\u6062\u590d\u6b63\u5e38\u540e\uff0cKeepalived\u53c8\u53ef\u4ee5\u81ea\u52a8\u5c06\u6b64\u670d\u52a1\u8282\u70b9\u91cd\u65b0\u52a0\u5165\u5230\u670d\u52a1\u5668\u96c6\u7fa4\u4e2d\uff0c\u8fd9\u4e9b\u5de5\u4f5c\u5168\u90e8\u81ea\u52a8\u5b8c\u6210\uff0c\u4e0d\u9700\u8981\u4eba\u5de5\u5e72\u6d89\uff0c\u9700\u8981\u4eba\u5de5\u5b8c\u6210\u7684\u53ea\u662f\u4fee\u590d\u51fa\u73b0\u6545\u969c\u7684\u670d\u52a1\u8282\u70b9\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u150c8c63\">    Keepalived\u540e\u6765\u53c8\u52a0\u4eba\u4e86VRRP\u7684\u529f\u80fd\uff0cVRRP\u662fVirtual Router Redundancy Protocol (\u865a\u62df\u8def\u7531\u5668\u5197\u4f59\u534f\u8bae)\u7684\u7f29\u5199\uff0c\u5b83\u51fa\u73b0\u7684\u76ee\u7684\u662f\u4e3a\u4e86\u89e3\u51b3\u9759\u6001\u8def\u7531\u51fa\u73b0\u7684\u5355\u70b9\u6545\u969c\u95ee\u9898\uff0c\u901a\u8fc7VRRP\u53ef\u4ee5\u5b9e\u73b0\u7f51\u7edc\u4e0d\u95f4\u65ad\u5730\u3001\u7a33\u5b9a\u5730\u8fd0\u884c\u3002\u56e0\u6b64Keepalived\u4e00\u65b9\u9762\u5177\u6709\u670d\u52a1\u5668\u72b6\u6001\u68c0\u6d4b\u548c\u6545\u969c\u9694\u79bb\u529f\u80fd\uff0c\u53e6\u4e00\u65b9\u9762\u4e5f\u5177\u6709HAclUster\u529f\u80fd.\u4e0b\u9762\u8be6\u7ec6\u4ecb\u7ecd\u4e0bVRRP\u534f\u8bae\u7684\u5b9e\u73b0\u8fc7\u7a0b<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"VqWk5\">2\u3001VRRP\u534f\u8bae\u4e0e\u5de5\u4f5c\u539f\u7406<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ua4958a67\">    \u5728\u73b0\u5b9e\u7684\u7f51\u7edc\u73af\u5883\u4e2d\uff0c\u4e3b\u673a\u4e4b\u95f4\u7684\u901a\u4fe1\u90fd\u662f\u901a\u8fc7\u914d\u7f6e\u9759\u6001\u8def\u7531(\u9ed8\u8ba4\u7f51\u5173)\u5b8c\u6210\u7684\uff0c\u800c\u4e3b\u673a\u4e4b\u95f4\u7684\u8def\u7531\u5668\u4e00\u65e6\u51fa\u73b0\u6545\u969c\uff0c\u901a\u4fe1\u5c31\u4f1a\u5931\u8d25\uff0c\u56e0\u6b64\uff0c\u5728\u8fd9\u79cd\u901a\u4fe1\u6a21\u5f0f\u4e2d\uff0c\u8def\u7531\u5668\u5c31\u6210\u4e86\u4e00\u4e2a\u5355\u70b9\u74f6\u9888\uff0c\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u5c31\u5f15\u5165\u4e86VRRP\u534f\u8bae\u3002\u719f\u6089\u7f51\u7edc\u7684\u5b66\u5458\u5bf9VRRP\u534f\u8bae\u5e94\u8be5\u5e76\u4e0d\u964c\u751f\u3002\u5b83\u662f\u4e00\u79cd\u4e3b\u5907\u6a21\u5f0f\u7684\u534f\u8bae\uff0c\u901a\u8fc7VRRP\u53ef\u4ee5\u5728\u7f51\u7edc\u53d1\u751f\u6545\u969c\u65f6\u900f\u660e\u5730\u8fdb\u884c\u8bbe\u5907\u5207\u6362\u800c\u4e0d\u5f71\u54cd\u4e3b\u673a\u95f4\u7684\u6570\u636e\u901a\u4fe1\uff0c<strong>\u8fd9\u5176\u4e2d\u6d89\u53ca\u4e24\u4e2a\u6982\u5ff5:\u7269\u7406\u8def\u7531\u5668\u548c\u865a\u62df\u8def\u7531\u5668\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ub3dc23de\">    <strong>VRRP\u53ef\u4ee5\u5c06\u4e24\u53f0\u6216\u591a\u53f0\u7269\u7406\u8def\u7531\u5668\u8bbe\u5907\u865a\u62df\u6210\u4e00\u4e2a\u865a\u62df\u8def\u7531\u5668<\/strong>\uff0c\u8fd9\u4e2a\u865a\u62df\u8def\u7531\u5668\u901a\u8fc7\u865a\u62dfIP(\u4e00\u4e2a\u6216\u591a\u4e2a)\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\uff0c\u800c\u5728\u865a\u62df\u8def\u7531\u5668\u5185\u90e8\uff0c\u662f\u591a\u4e2a\u7269\u7406\u8def\u7531\u5668\u534f\u540c\u5de5\u4f5c\uff0c\u540c\u4e00\u65f6\u95f4\u53ea\u6709\u4e00\u53f0\u7269\u7406\u8def\u7531\u5668\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\uff0c\u8fd9\u53f0\u7269\u7406\u8def\u7531\u5668\u88ab\u79f0\u4e3a\u4e3b\u8def\u7531\u5668(\u5904\u4e8eMASTER\u89d2\u8272)\u3002\uff0c\u5b83\u62e5\u6709\u5bf9\u5916\u670d\u52a1\u7684\u865a\u62dfIP\uff0c\u63d0\u4f9b\u5404\u79cd\u7f51\u7edc\u529f\u80fd\uff0c\u5982ARP\u8bf7\u6c42\u3001ICMP\u3001\u6570\u636e\u8f6c\u53d1\u7b49\u3002\u800c\u5176\u4ed6\u7269\u7406\u8def\u7531\u5668\u4e0d\u62e5\u6709\u5bf9\u5916\u7684\u865a\u62dfIP\uff0c\u4e5f\u4e0d\u63d0\u4f9b\u5bf9\u5916\u7f51\u7edc\u529f\u80fd\uff0c\u4ec5\u4ec5\u63a5\u6536MASTER\u7684VRRP\u72b6\u6001\u901a\u544a\u4fe1\u606f\uff0c\u8fd9\u4e9b\u8def\u7531\u5668\u88ab\u7edf\u79f0\u4e3a\u5907\u4efd\u8def\u7531\u5668(\u5904\u4e8eBACKUP\u89d2\u8272)\u3002\u5f53\u4e3b\u8def\u7531\u5668\u5931\u6548\u65f6\uff0c\u5904\u4e8eBACKUP\u89d2\u8272\u7684\u5907\u4efd\u8def\u7531\u5668\u5c06\u91cd\u65b0\u8fdb\u884c\u9009\u4e3e\uff0c\u4ea7\u751f\u4e00\u4e2a\u65b0\u7684\u4e3b\u8def\u7531\u5668\u8fdb\u5165MASTER\u89d2\u8272\u7ee7\u7eed\u63d0\u4f9b\u5bf9\u5916\u670d\u52a1\uff0c\u6574\u4e2a\u5207\u6362\u8fc7\u7a0b\u5bf9\u7528\u6237\u6765\u8bf4\u5b8c\u5168\u900f\u660e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u8a46c207\">    \u5728\u4e00\u4e2a\u865a\u62df\u8def\u7531\u5668\u4e2d\uff0c\u53ea\u6709\u5904\u4e8eMASTER\u89d2\u8272\u7684\u8def\u7531\u5668\u4f1a\u4e00\u76f4\u53d1\u9001VRRP\u6570\u636e\u5305\uff0c\u5904\u4e8eBACKUP\u89d2\u8272\u7684\u8def\u7531\u5668\u53ea\u63a5\u6536MASTER\u53d1\u8fc7\u6765\u7684\u62a5\u6587\u4fe1\u606f\uff0c\u7528\u6765\u76d1\u63a7MASTER\u8fd0\u884c\u72b6\u6001\uff0c\u56e0\u6b64\uff0c\u4e0d\u4f1a\u53d1\u751fMASTER\u62a2\u5360\u7684\u73b0\u8c61\uff0c\u9664\u975e\u5b83\u7684\u4f18\u5148\u7ea7\u66f4\u9ad8\u3002\u800c\u5f53MASTER\u4e0d\u53ef\u7528\u65f6\uff0cBACKUP\u4e5f\u5c31\u65e0\u6cd5\u6536\u5230MASTER\u53d1\u8fc7\u6765\u7684\u62a5\u6587\u4fe1\u606f\uff0c\u4e8e\u662f\u5c31\u8ba4\u5b9aMASTER\u51fa\u73b0\u6545\u969c\uff0c\u63a5\u7740\u591a\u53f0BACKUP\u5c31\u4f1a\u8fdb\u884c\u9009\u4e3e\uff0c\u4f18\u5148\u7ea7\u6700\u9ad8\u7684BACKUP\u5c06\u6210\u4e3a\u65b0\u7684MASTER\uff0c\u8fd9\u79cd\u9009\u4e3e\u5e76\u8fdb\u884c\u89d2\u8272\u5207\u6362\u7684\u8fc7\u7a0b\u975e\u5e38\u5feb\uff0c\u56e0\u800c\u4e5f\u5c31\u4fdd\u8bc1\u4e86\u670d\u52a1\u7684\u6301\u7eed\u53ef\u7528\u6027\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"ibAZs\">3\u3001Keepalived\u7684\u4f53\u7cfb\u7ed3\u6784<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u471b9c26\">    Keepalived\u662f\u4e00\u4e2a\u9ad8\u5ea6\u6a21\u5757\u5316\u7684\u8f6f\u4ef6\uff0c\u7ed3\u6784\u7b80\u5355\uff0c\u4f46\u6269\u5c55\u6027\u5f88\u5f3a\uff0c\u4e0b\u56fe\u662f\u5b98\u65b9\u7ed9\u51fa\u7684Keepalived\u4f53\u7cfb\u7ed3\u6784\u62d3\u6251\u56fe\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-11.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"873\" height=\"576\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-11.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-71\"  sizes=\"auto, (max-width: 873px) 100vw, 873px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u471b9c26\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"tBvN0\">\u4e09\u3001Keepalived\u5b89\u88c5\u4e0e\u914d\u7f6e<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"SwoAN\">1. Keepalived\u7684\u5b89\u88c5\u8fc7\u7a0b<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uf860a783\">keepalived\u7684\u5b89\u88c5\u975e\u5e38\u7b80\u5355\uff0c\u4ee5\u64cd\u4f5c\u7cfb\u7edf\u73af\u5883RHEL\u53d1\u884c\u7248\u4e3a\u4f8b\uff0c\u5efa\u8bae\u901a\u8fc7yum\u65b9\u5f0f\u76f4\u63a5\u5b89\u88c5:<\/p>\n\n\n\n<pre id=\"njxXU\" class=\"wp-block-code\"><code>&#91;root@keepalived-master app]# yum install keepalived<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uf7d8cd3b\">\u5982\u679c\u9700\u8981Ivs\u529f\u80fd\uff0c\u8fd8\u9700\u8981\u5b89\u88c5ipvs\u6a21\u5757:<\/p>\n\n\n\n<pre id=\"yekjI\" class=\"wp-block-code\"><code>&#91;root @keepalived-master app]# yum install ipvsadm<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u69cd6606\">\u4e5f\u53ef\u4ee5\u901a\u8fc7\u6e90\u7801\u5b89\u88c5\uff0c\u8fc7\u7a0b\u5982\u4e0b:<\/p>\n\n\n\n<pre id=\"FnoM0\" class=\"wp-block-code\"><code>&#91;rooteepalived-master app]# yum install-y gcc gcc-c++ wget popt-devel openssl-devel-devel-devel\n&#91;root@keepalived-master app]# yum install-y libnl3 libnl3-devel\n&#91;&#91;root@keepalived-2.3.1.tar app]# tar zxvfkeepalived-2.tar.gz\n&#91;root@keepalived-master app]# cd keepalived-2.3.1\n&#91;root@keepalived-master keepalived-2.3.1]#.\/configure --sysconf\/etc\n&#91;root@keepalived-master keepalived-2.3.1]#make\n&#91;root@keepalived-master keepalived-2.3.1]# make install\n&#91;root@keepalived-master keepalived-2.3.1]# systemctl enable keepalived<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uf17243a8\">\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u8fdb\u5165keepalived\u7684\u914d\u7f6e\u8fc7\u7a0b\u3002\u9ed8\u8ba4\u6a21\u677f\u914d\u7f6e\u6587\u4ef6\u4f4d\u4e8e\/etc\/keepalived\/keepalived.conf.sample<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"p1RZ1\">2. Keepalived\u7684\u5168\u5c40\u914d\u7f6e<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u9e302e06\">\u5728\u4e0a\u8282\u5b89\u88c5Keepalived\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6307\u5b9a\u4e86Keepalived\u914d\u7f6e\u6587\u4ef6\u7684\u8def\u5f84\u4e3a\/etc\/Keepalived\/Keepalived.conf ,Keepalived\u7684\u6240\u6709\u914d\u7f6e\u5747\u5728\u8fd9\u4e2a\u914d\u7f6e\u6587\u4ef6\u4e2d\u5b8c\u6210\u3002\u7531\u4e8eKeepalived.conf\u6587\u4ef6\u4e2d\u53ef\u914d\u7f6e\u7684\u9009\u9879\u6bd4\u8f83\u591a\uff0c\u8fd9\u91cc\u6839\u636e\u914d\u7f6e\u6587\u4ef6\u6240\u5b9e\u73b0\u7684\u529f\u80fd\uff0c\u5c06Keepalived\u914d\u7f6e\u5206\u4e3a\u4e09\u7c7b\uff0c\u5206\u522b\u662f:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5168\u5c40\u914d\u7f6e(Global Configuration)\u3001<\/li>\n\n\n\n<li>VRRPD\u914d\u7f6e<\/li>\n\n\n\n<li>LVS\u914d\u7f6e\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u6214dc55\">\u4e0b\u9762\u5c06\u4e3b\u8981\u4ecb\u7ecd\u4e0bKeepalived\u914d\u7f6e\u6587\u4ef6\u4e2d\u4e00\u4e9b\u5e38\u7528\u914d\u7f6e\u9009\u9879\u7684\u542b\u4e49\u548c\u7528\u6cd5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-10-1024x469.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"469\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-10-1024x469.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-70\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u6214dc55\"><\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"bVNJr\">3. Keepalived\u7684VRRPD\u914d\u7f6e<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u4aae4594\">VRRPD\u914d\u7f6e\u662fKeepaived\u6240\u6709\u914d\u7f6e\u7684\u6838\u5fc3\uff0c\u4e3b\u8981\u7528\u6765\u5b9e\u73b0Keepalived\u7684\u9ad8\u53ef\u7528\u529f\u80fd\u3002\u4e0b\u9762\u8fdb\u5165VRRP\u5b9e\u4f8b\u7684\u914d\u7f6e\uff0c\u4e5f\u5c31\u662f\u914d\u7f6eKeepalived\u7684\u9ad8\u53ef\u7528\u529f\u80fd\u3002VRRP\u5b9e\u4f8b\u6bb5\u4e3b\u8981\u7528\u6765\u914d\u7f6e\u8282\u70b9\u89d2\u8272(\u4e3b\u6216\u4ece)\u3001\u5b9e\u4f8b\u7ed1\u5b9a\u7684\u7f51\u7edc\u63a5\u53e3\u3001\u8282\u70b9\u95f4\u9a8c\u8bc1\u673a\u5236\u3001\u96c6\u7fa4\u670d\u52a1P\u7b49\u3002\u4e0b\u9762\u662f\u5b9e\u4f8bVL1\u7684\u4e00\u4e2a\u914d\u7f6e\u6837\u4f8b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u4aae4594\"><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-9.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"558\" height=\"723\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-9.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-69\"  sizes=\"auto, (max-width: 558px) 100vw, 558px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u490296f8\">    \u4ee5\u4e0aVRRP\u914d\u7f6e\u4ee5\u201dvrrp_instanced\u201c\u4f5c\u4e3a\u6807\u8bc6\uff0c\u5728\u8fd9\u4e2a\u5b9e\u4f8b\u4e2d\u5305\u542b\u4e86\u82e5\u5e72\u914d\u7f6e\u9009\u9879\uff0c\u5206\u522b\u4ecb\u7ecd\u5982\u4e0b:vrrp_instanced\u7684\u914d\u7f6e<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>vrrp_instance\u662fVRRP\u5b9e\u4f8b\u5f00\u59cb\u7684\u6807\u8bc6\uff0c\u540e\u8ddfVRRP\u5b9e\u4f8b\u540d\u79f0\u3002<\/li>\n\n\n\n<li>state\u7528\u4e8e\u6307\u5b9aKeepalived\u7684\u89d2\u8272\uff0cMASTER\u8868\u793a\u6b64\u4e3b\u673a\u662f\u4e3b\u670d\u52a1\u5668\uff0cBACKUP\u8868\u793a\u6b64\u4e3b\u673a\u662f\u5907\u7528\u670d\u52a1\u5668\u3002<\/li>\n\n\n\n<li>interface\u7528\u4e8e\u6307\u5b9aHA\u76d1\u6d4b\u7f51\u7edc\u7684\u63a5\u53e3\u3002<\/li>\n\n\n\n<li>virtuaLrouter_id\u662f\u865a\u62df\u8def\u7531\u6807\u8bc6\uff0c\u8fd9\u4e2a\u6807\u8bc6\u662f\u4e00\u4e2a\u6570\u5b57\uff0c\u540c\u4e00\u4e2avrp\u5b9e\u4f8b\u4f7f\u7528\u552f\u4e00\u7684\u6807\u8bc6\uff0c\u5373\u5728\u540c\u4e00\u4e2aVrrp_instance\u4e0b\uff0cMASTER\u548cBACKUP\u5fc5\u987b\u662f\u4e00\u81f4\u7684\u3002<\/li>\n\n\n\n<li>priorify\u7528\u4e8e\u5b9a\u4e49\u8282\u70b9\u4f18\u5148\u7ea7\uff0c\u6570\u5b57\u8d8a\u5927\u8868\u793a\u8282\u70b9\u7684\u4f18\u5148\u7ea7\u5c31\u8d8a\u9ad8\u3002\u5728\u4e00\u4e2aVrrp.instance\u4e0b\uff0cMASTER\u7684\u4f18\u5148\u7ea7\u5fc5\u987b\u5927\u4e8eBACKUP\u7684\u4f18\u5148\u7ea7\u3002<\/li>\n\n\n\n<li>advert_int\u7528\u4e8e\u8bbe\u5b9aMASTER\u4e0eBACKUP\u4e3b\u673a\u4e4b\u95f4\u540c\u6b65\u68c0\u67e5\u7684\u65f6\u95f4\u95f4\u9694\uff0c\u5355\u4f4d\u662f\u79d2\u3002<\/li>\n\n\n\n<li>track_interface\u7528\u4e8e\u8bbe\u7f6e\u4e00\u4e9b\u989d\u5916\u7684\u7f51\u7edc\u76d1\u63a7\u63a5\u53e3\uff0c\u5176\u4e2d\u4efb\u4f55\u4e00\u4e2a\u7f51\u7edc\u63a5\u53e3\u51fa\u73b0\u6545\u969c\uff0cKeepalived\u90fd\u4f1a\u8fdb\u5165FAULT\u72b6\u6001\u3002<\/li>\n\n\n\n<li>Aauthentication\u7528\u4e8e\u8bbe\u5b9a\u8282\u70b9\u95f4\u901a\u4fe1\u9a8c\u8bc1\u7c7b\u578b\u548c\u5bc6\u7801\uff0c\u9a8c\u8bc1\u7c7b\u578b\u4e3b\u8981\u6709PASS\u548cAH\u4e24\u79cd\uff0c\u5728\u4e00\u4e2aVrrp.instance\u4e0b\uff0cMASTER\u4e0eBACKUP\u5fc5\u987b\u4f7f\u7528\u76f8\u540c\u7684\u5bc6\u7801\u624d\u80fd\u6b63\u5e38\u901a\u4fe1\u3002<\/li>\n\n\n\n<li>virtuaLipaddress\u7528\u4e8e\u8bbe\u7f6e\u865a\u62dfIP\u5730\u5740(VIP)\uff0c\u53c8\u53eb\u505a\u6f02\u79fbIP\u5730\u5740\u3002\u53ef\u4ee5\u8bbe\u7f6e\u591a\u4e2a\u865a\u62dfIP\u5730\u5740\uff0c\u6bcf\u884c\u4e00\u4e2a\u3002\u4e4b\u6240\u4ee5\u79f0\u4e3a\u6f02\u79fbIP\u5730\u5740\uff0c\u662f\u56e0\u4e3aKeepalived\u5207\u6362\u5230Master\u72b6\u6001\u65f6\uff0c\u8fd9\u4e2aIP\u5730\u5740\u4f1a\u81ea\u52a8\u6dfb\u52a0\u5230\u7cfb\u7edf\u4e2d\uff0c\u800c\u5207\u6362\u5230BACKUP\u72b6\u6001\u65f6\uff0c\u8fd9\u4e9bIP\u53c8\u4f1a\u81ea\u52a8\u4ece\u7cfb\u7edf\u4e2d\u5220\u9664\u3002Keepalived\u901a\u8fc7\u201cip address add\u201d\u547d\u4ee4\u7684\u5f62\u5f0f\u5c06VIP\u6dfb\u52a0\u8fdb\u7cfb\u7edf\u4e2d\u3002\u8981\u67e5\u770b\u7cfb\u7edf\u4e2d\u6dfb\u52a0\u7684VIP\u5730\u5740\uff0c\u53ef\u4ee5\u901a\u8fc7&#8221;ipadd\u201d \u547d\u4ee4\u5b9e\u73b0\u3002\u201cvirtual ipaddress&#8221; \u6bb5\u4e2d\u6dfb\u52a0\u7684P\u5f62\u5f0f\u53ef\u4ee5\u591a\u79cd\u591a\u6837\uff0c\u4f8b\u5982\u53ef\u4ee5\u5199\u6210&#8221;192.168.16.189\/24deveth1\u201d \u8fd9\u6837\u7684\u5f62\u5f0f\uff0c\u800cKeepalived\u4f1a\u4f7f\u7528IP\u547d\u4ee4\u201cip addr add192.168.16.189\/24deveth1\u201d \u5c06IP\u4fe1\u606f\u6dfb\u52a0\u5230\u7cfb\u7edf\u4e2d\u3002\u56e0\u6b64\uff0c\u8fd9\u91cc\u7684\u914d\u7f6e\u89c4\u5219\u548cIP\u547d\u4ee4\u7684\u4f7f\u7528\u89c4\u5219\u662f\u4e00\u81f4\u7684\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u670d\u52a1\u811a\u672c\u7684\u914d\u7f6e\u548c\u9009\u62e9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u93554942\">nopreempt\u8bbe\u7f6e\u7684\u662f\u9ad8\u53ef\u7528\u96c6\u7fa4\u4e2d\u7684\u4e0d\u62a2\u5360\u529f\u80fd\u3002\u5728\u4e00\u4e2aHACluster\u4e2d\uff0c\u5982\u679c\u4e3b\u8282\u70b9\u6b7b\u673a\u4e86\uff0c\u5907\u7528\u8282\u70b9\u4f1a\u8fdb\u884c\u63a5\u7ba1\uff0c\u4e3b\u8282\u70b9\u518d\u6b21\u6b63\u5e38\u542f\u52a8\u540e\u4e00\u822c\u4f1a\u81ea\u52a8\u63a5\u7ba1\u670d\u52a1\u3002\u8fd9\u79cd\u6765\u56de\u5207\u6362\u7684\u64cd\u4f5c\uff0c\u5bf9\u4e8e\u5b9e\u65f6\u6027\u548c\u7a33\u5b9a\u6027\u8981\u6c42\u4e0d\u9ad8\u7684\u4e1a\u52a1\u7cfb\u7edf\u6765\u8bf4\uff0c\u8fd8\u662f\u53ef\u4ee5\u63a5\u53d7\u7684\uff0c\u800c\u5bf9\u4e8e\u7a33\u5b9a\u6027\u548c\u5b9e\u65f6\u6027\u8981\u6c42\u5f88\u9ad8\u7684\u4e1a\u52a1\u7cfb\u7edf\u6765\u8bf4\uff0c\u4e0d\u5efa\u8bae\u6765\u56de\u5207\u6362\uff0c\u6bd5\u7adf\u670d\u52a1\u7684\u5207\u6362\u5b58\u5728\u4e00\u5b9a\u7684\u98ce\u9669\u548c\u4e0d\u7a33\u5b9a\u6027\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5c31\u9700\u8981\u8bbe\u7f6enopreempt\u8fd9\u4e2a\u9009\u9879\u4e86\u3002\u8bbe\u7f6enopreempt\u53ef\u4ee5\u5b9e\u73b0\u4e3b\u8282\u70b9\u6545\u969c\u6062\u590d\u540e\u4e0d\u518d\u5207\u56de\u5230\u4e3b\u8282\u70b9\uff0c\u8ba9\u670d\u52a1\u4e00\u76f4\u5728\u5907\u7528\u8282\u70b9\u5de5\u4f5c\uff0c\u76f4\u5230\u5907\u7528\u8282\u70b9\u51fa\u73b0\u6545\u969c\u624d\u4f1a\u8fdb\u884c\u5207\u6362\u3002\u5728\u4f7f\u7528\u4e0d\u62a2\u5360\u65f6\uff0c\u53ea\u80fd\u5728\u201cstate\u201d\u72b6\u6001\u4e3a\u201cBACKUP\u201d\u7684\u8282\u70b9\u4e0a\u8bbe\u7f6e\uff0c\u800c\u4e14\u8fd9\u4e2a\u8282\u70b9\u7684\u4f18\u5148\u7ea7\u5fc5\u987b\u9ad8\u4e8e\u5176\u4ed6\u8282\u70b9\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u6790992b\">preemtp_delay\u7528\u4e8e\u8bbe\u7f6e\u5207\u6362\u7684\u5ef6\u65f6\u65f6\u95f4\uff0c\u5355\u4f4d\u662f\u79d2\u3002\u6709\u65f6\u5019\u7cfb\u7edf\u542f\u52a8\u6216\u91cd\u542f\u4e4b\u540e\u7f51\u7edc\u9700\u8981\u7ecf\u8fc7\u4e00\u6bb5\u65f6\u95f4\u624d\u80fd\u6b63\u5e38\u5de5\u4f5c\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u8fdb\u884c\u53d1\u751f\u4e3b\u5907\u5207\u6362\u662f\u6ca1\u5fc5\u8981\u7684\uff0c\u6b64\u9009\u9879\u5c31\u662f\u7528\u6765\u8bbe\u7f6e\u8fd9\u79cd\u60c5\u51b5\u53d1\u751f\u7684\u65f6\u95f4\u95f4\u9694\u3002\u5728\u6b64\u65f6\u95f4\u5185\u53d1\u751f\u7684\u6545\u969c\u5c06\u4e0d\u4f1a\u8fdb\u884c\u5207\u6362\uff0c\u800c\u5982\u679c\u8d85\u8fc7\u201cpreemtp_delay\u201d\u6307\u5b9a\u7684\u65f6\u95f4\uff0c\u5e76\u4e14\u7f51\u7edc\u72b6\u6001\u5f02\u5e38\uff0c\u90a3\u4e48\u624d\u5f00\u59cb\u8fdb\u884c\u4e3b\u5907\u5207\u6362\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u74b25065\">notify_master:\u6307\u5b9a\u5f53Keepalived\u8fdb\u5165Master\u72b6\u6001\u65f6\u8981\u6267\u884c\u7684\u811a\u672c\uff0c\u8fd9\u4e2a\u811a\u672c\u53ef\u4ee5\u662f\u4e00\u4e2a\u72b6\u6001\u62a5\u8b66\u811a\u672c\uff0c\u4e5f\u53ef\u4ee5\u662f\u4e2a\u670d\u52a1\u7ba1\u7406\u811a\u672c\u3002Keepalived\u5141\u8bb8\u811a\u672c\u4f20\u5165\u53c2\u6570\uff0c\u56e0\u6b64\u7075\u6d3b\u6027\u5f88\u5f3a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u523972f0\">notify_backup:\u6307\u5b9a\u5f53Keepalived\u8fdb\u5165Backup\u72b6\u6001\u65f6\u8981\u6267\u884c\u7684\u811a\u672c\uff0c\u540c\u7406\uff0c\u8fd9\u4e2a\u811a\u672c\u53ef\u4ee5\u662f\u4e00\u4e2a\u72b6\u6001\u62a5\u8b66\u811a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uc7b9919f\">\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a\u670d\u52a1\u7ba1\u7406\u811a\u672c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u8e331777\">notify_fault:\u6307\u5b9a\u5f53Keepalived\u8fdb\u5165Fault\u72b6\u6001\u65f6\u8981\u6267\u884c\u7684\u811a\u672c\uff0c\u811a\u672c\u529f\u80fd\u4e0e\u524d\u4e24\u4e2a\u7c7b\u4f3c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u90f0f8ce\">notify_stop:\u6307\u5b9a\u5f53Keepalived\u7a0b\u5e8f\u7ec8\u6b62\u65f6\u9700\u8981\u6267\u884c\u7684\u811a\u672c\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"ZkSTy\">4. Keepalived\u7684LVS\u914d\u7f6e<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u46b2be76\">\u7531\u4e8eKeepalived\u5c5e\u4e8eLVS\u7684\u6269\u5c55\u9879\u76ee\uff0c\u56e0\u6b64\uff0cKeepalived\u53ef\u4ee5\u4e0eLVS\u65e0\u7f1d\u6574\u5408\uff0c\u8f7b\u677e\u642d\u5efa\u4e00\u5957\u9ad8\u6027\u80fd\u7684\u8d1f\u8f7d\u5747\u8861\u96c6\u7fa4\u7cfb\u7edf\u3002\u4e0b\u9762\u4ecb\u7ecd\u4e0bKeepalived\u914d\u7f6e\u6587\u4ef6\u4e2d\u5173\u4e8eLVS\u914d\u7f6e\u6bb5\u7684\u914d\u7f6e\u65b9\u6cd5\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>LVS\u6bb5\u7684\u914d\u7f6e\u4ee5\u201cvirtuaLserver\u201d\u4f5c\u4e3a\u5f00\u59cb\u6807\u8bc6\uff0c\u6b64\u6bb5\u5185\u5bb9\u6709\u4e24\u90e8\u5206\u7ec4\u6210\uff0c\u5206\u522b\u662freaLserver\u6bb5\u548c\u5065\u5eb7\u68c0\u6d4b\u6bb5\u3002\u4e0b\u9762\u662fvirtual_server\u6bb5\u5e38\u7528\u9009\u9879\u7684\u4e00\u4e2a\u914d\u7f6e\u793a\u4f8b:<\/li>\n<\/ol>\n\n\n\n<pre id=\"r7Ape\" class=\"wp-block-code\"><code>virtual_server 192.168.12.200 80 {\n  delay_loop 6   #\u5065\u5eb7\u68c0\u67e5\u7684\u65f6\u95f4\u95f4\u9694\nlb_algo rr\t\t\t# \u8bbe\u7f6e\u8d1f\u8f7d\u8c03\u5ea6\u7684\u7b97\u6cd5 rr\uff08\u8f6e\u8be2\uff09 wr\uff08\u6743\u91cd\uff09\nlb_kind DR\t\t\t# \u8bbe\u7f6e\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u7684\u65b9\u5f0f DR\uff08\u76f4\u63a5\u8def\u7531\uff0c\u540c\u7f51\u6bb5\uff09\npersistence_timeout 50\t#\u8d85\u65f6\u65f6\u95f4\uff08\u4e0d\u6d3b\u52a8\u65f6\u95f450s\uff09\uff0c\u8bbf\u95ee\u4e00\u4e2a\u670d\u52a1\u5668\u7684\u4f1a\u8bdd\u4fdd\u6301\n  persistence_granularity &lt;NETMASK&gt; # \u5bf9\u4e0a\u7684\u6269\u5c55\u8868\u793a\u6301\u4e45\u8fde\u63a5\u662f\u5426\u5bf9\u591a\u4e2aip\u8fdb\u884c\u751f\u6548\nprotocol TCP  \t#\u6307\u5b9a\u8f6c\u53d1\u7684\u534f\u8bae\nsorry_Server &lt;IPADDR&gt; &lt;PORT&gt;. # \u5907\u7528<\/code><\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u4e0b\u9762\u662freal_server\u6bb5\u7684\u4e00\u4e2a\u914d\u7f6e\u793a\u4f8b:<\/li>\n<\/ol>\n\n\n\n<pre id=\"jaGWq\" class=\"wp-block-code\"><code>reaL_server 192.168.12.132 80{\n  weight 3  #\u6743\u91cd\n  inhibit_on_failure  #\u6743\u91cd\u8bbe\u7f6e0\n  notify_Up &lt;STRING&gt; |&lt;QUOTED-STRING&gt; #\u72b6\u6001\u6267\u884c\u811a\u672c\n  notify_down &lt;STRING&gt; |&lt;QUOTED-STRING&gt; #\u72b6\u6001\u6267\u884c\u811a\u672c\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u33701c1d\">\u4e0b\u9762\u4ecb\u7ecd\u6bcf\u4e2a\u9009\u9879\u7684\u542b\u4e49\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u46ebf4a3\">reaLserver:\u662freaLserver\u6bb5\u5f00\u59cb\u7684\u6807\u8bc6\uff0c\u7528\u6765\u6307\u5b9areal server\u8282\u70b9\uff0c\u540e\u9762\u8ddf\u7684\u662freal server\u7684\u771f\u5b9eIP\u5730\u5740\u548c\u7aef\u53e3\uff0cIP\u4e0e\u7aef\u53e3\u4e4b\u95f4\u7528\u7a7a\u683c\u9694\u5f00\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"udeb6efa4\">weight:\u7528\u6765\u914d\u7f6ereal server\u8282\u70b9\u7684\u6743\u503c\u3002\u6743\u503c\u5927\u5c0f\u7528\u6570\u5b57\u8868\u793a\uff0c\u6570\u5b57\u8d8a\u5927\uff0c\u6743\u503c\u8d8a\u9ad8\u3002\u8bbe\u7f6e\u6743\u503c\u7684\u5927\u5c0f\u53ef\u4ee5\u4e3a\u4e0d\u540c\u6027\u80fd\u7684\u670d\u52a1\u5668\u5206\u914d\u4e0d\u540c\u7684\u8d1f\u8f7d\uff0c\u4e3a\u6027\u80fd\u9ad8\u7684\u670d\u52a1\u5668\u8bbe\u7f6e\u8f83\u9ad8\u7684\u6743\u503c\uff0c\u800c\u4e3a\u6027\u80fd\u8f83\u4f4e\u7684\u670d\u52a1\u5668\u8bbe\u7f6e\u76f8\u5bf9\u8f83\u4f4e\u7684\u6743\u503c\uff0c\u8fd9\u6837\u624d\u80fd\u5408\u7406\u5730\u5229\u7528\u548c\u5206\u914d\u4e86\u7cfb\u7edf\u8d44\u6e90\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u08305317\">inhibit_on_failure:\u8868\u793a\u5728\u68c0\u6d4b\u5230real server\u8282\u70b9\u5931\u6548\u540e\uff0c\u628a\u5b83\u7684&#8221;weight\u201d \u503c\u8bbe\u7f6e\u4e3a0\uff0c\u800c\u4e0d\u662f\u4eceIPVS\u4e2d\u5220\u9664\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u67312bd9\">notify_up:\u6b64\u9009\u9879\u4e0e\u4e0a\u9762\u4ecb\u7ecd\u8fc7\u7684notify_maser\u6709\u76f8\u540c\u7684\u529f\u80fd\uff0c\u540e\u8ddf\u4e00\u4e2a\u811a\u672c\uff0c\u8868\u793a\u5728\u68c0\u6d4b\u5230real server\u8282\u70b9\u670d\u52a1\u5904\u4e8eUP\u72b6\u6001\u540e\u6267\u884c\u7684\u811a\u672c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u3baa01b7\">notify_down:\u8868\u793a\u5728\u68c0\u6d4b\u5230real server\u8282\u70b9\u670d\u52a1\u5904\u4e8eDOWN\u72b6\u6001\u540e\u6267\u884c\u7684\u811a\u672c\u3002<\/p>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>\u5065\u5eb7\u68c0\u6d4b\u6bb5\u5141\u8bb8\u591a\u79cd\u68c0\u67e5\u65b9\u5f0f\uff0c\u5e38\u89c1\u7684\u6709HTTP_GET\u3001SSL_GET\u3001TCP_CHECK\u3001SMTP_CHECK\u3001MISC_CHECK\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u84ddd4bb\">\u9996\u5148\u770b TCP_CHECK\u68c0\u6d4b\u65b9\u5f0f\u793a\u4f8b:<\/p>\n\n\n\n<pre id=\"myVrG\" class=\"wp-block-code\"><code>TCP_CHECK {\nconnect_port 80  #\u68c0\u6d4b\u7aef\u53e3\nconnect_timeout 3 #\u8868\u793a\u65e0\u54cd\u5e94\u8d85\u65f6\u65f6\u95f4\uff0c\u5355\u4f4d\u662f\u79d2\uff0c\u8fd9\u91cc\u662f3\u79d2\u8d85\u65f6\u3002\n  nb_get_retry 3   #\u8868\u793a\u91cd\u8bd5\u6b21\u6570\uff0c\u8fd9\u91cc\u662f3\u6b21\u3002\n  delay_before_retry 3 #\u8868\u793a\u91cd\u8bd5\u95f4\u9694\uff0c\u8fd9\u91cc\u662f\u95f4\u96943\u79d2\u3002\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ucc234a6d\">\u4e0b\u9762\u4ecb\u7ecd\u6bcf\u4e2a\u9009\u9879\u7684\u542b\u4e49\u4ecb\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u6dbcb84b\">connect_port:\u5065\u5eb7\u68c0\u67e5\u7684\u7aef\u53e3\uff0c\u5982\u679c\u65e0\u6307\u5b9a\uff0c\u9ed8\u8ba4\u662frea_server\u6307\u5b9a\u7684\u7aef\u53e3\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ue9b6a5dd\">connect_timeout:\u8868\u793a\u65e0\u54cd\u5e94\u8d85\u65f6\u65f6\u95f4\uff0c\u5355\u4f4d\u662f\u79d2\uff0c\u8fd9\u91cc\u662f3\u79d2\u8d85\u65f6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u6e907d88\">nb_get_retry:\u8868\u793a\u91cd\u8bd5\u6b21\u6570\uff0c\u8fd9\u91cc\u662f3\u6b21\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ufb7b8881\">delay_before_retry:\u8868\u793a\u91cd\u8bd5\u95f4\u9694\uff0c\u8fd9\u91cc\u662f\u95f4\u96943\u79d2\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uc7855be3\">\u4e0b\u9762\u662fHTTP GET\u548cSSLGET\u68c0\u6d4b\u65b9\u5f0f\u7684\u793a\u4f8b:<\/p>\n\n\n\n<pre id=\"BW9K1\" class=\"wp-block-code\"><code>HTTP_GET|SSL_GET\nurl {\n  path \/index.html\n  digest e6c271eb5f017f280cf97ec2f51b02d3\n  status_code 200\n  connect_port 80\n  bindto 192.168.12.80\n  connect_timeout 3\n  nb_get retry 3\n  delay_before_retry 2\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u620ad6d9\">\u4e0b\u9762\u4ecb\u7ecd\u6bcf\u4e2a\u9009\u9879\u7684\u542b\u4e49\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ucaffe18d\">Url:\u7528\u6765\u6307\u5b9aHTTP\/SSL\u68c0\u67e5\u7684URL\u4fe1\u606f\uff0c\u53ef\u4ee5\u6307\u5b9a\u591a\u4e2aURL\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u013fc99d\">path:\u540e\u8ddf\u8be6\u7ec6\u7684URL\u8def\u5f84\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u72b0296d\">digest:SSL\u68c0\u67e5\u540e\u7684\u6458\u8981\u4fe1\u606f\uff0c\u8fd9\u4e9b\u6458\u8981\u4fe1\u606f\u53ef\u4ee5\u901a\u8fc7genhash\u547d\u4ee4\u5de5\u5177\u83b7\u53d6\u3002\u4f8b\u5982:genhash-s 192.168.12.80-p 80-u<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ufcecea31\">\/index.html.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ube4e2f0c\">status_code:\u6307\u5b9aHTTP\u68c0\u67e5\u8fd4\u56de\u6b63\u5e38\u72b6\u6001\u7801\u7684\u7c7b\u578b\uff0c\u4e00\u822c\u662f200\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ud0eb3933\">bindto:\u8868\u793a\u901a\u8fc7\u6b64\u5730\u5740\u6765\u53d1\u9001\u8bf7\u6c42\u5bf9\u670d\u52a1\u5668\u8fdb\u884c\u5065\u5eb7\u68c0\u67e5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-8-1024x399.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"399\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-8-1024x399.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-68\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ud0eb3933\">\u4e94\u3001\u901a\u8fc7vrrp_script\u5b9e\u73b0\u5bf9\u96c6\u7fa4\u8d44\u6e90\u7684\u76d1\u63a7<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"x212N\">1\u3001\u901a\u8fc7killall\u547d\u4ee4\u63a2\u6d4b\u670d\u52a1\u8fd0\u884c\u72b6\u6001<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u548ff494\">\u8fd9\u79cd\u76d1\u63a7\u96c6\u7fa4\u670d\u52a1\u7684\u65b9\u5f0f\u4e3b\u8981\u662f\u901a\u8fc7kilall\u547d\u4ee4\u5b9e\u73b0\u7684\u3002kilal\u4f1a\u53d1\u9001\u4e00\u4e2a\u4fe1\u53f7\u5230\u6b63\u5728\u8fd0\u884c\u7684\u6307\u5b9a\u547d\u4ee4\u7684\u8fdb\u7a0b\u3002\u5982\u679c\u6ca1\u6307\u5b9a\u4fe1\u53f7\u540d\uff0c\u5219\u53d1\u9001SIGTERM.SIGTERM\u4e5f\u662f\u4fe1\u53f7\u540d\u7684\u4e00\u79cd\uff0c\u4ee3\u53f7\u4e3a15\uff0c\u5b83\u8868\u793a\u4ee5\u6b63\u5e38\u7684\u65b9\u5f0f\u7ed3\u675f\u7a0b\u5e8f\u7684\u8fd0\u884c\u3002\u5176\u5b9ekilal\u53ef\u7528\u7684\u4fe1\u53f7\u540d\u6709\u5f88\u591a\uff0c\u53ef\u901a\u8fc7\u201ckilall-\u201d\u547d\u4ee4\u663e\u793a\u6240\u6709\u4fe1\u53f7\u540d\u5217\u8868\uff0c\u5176\u4e2d\u6bcf\u4e2a\u4fe1\u53f7\u540d\u4ee3\u8868\u5bf9\u8fdb\u7a0b\u7684\u4e0d\u540c\u6267\u884c\u65b9\u5f0f\uff0c\u4f8b\u5982\uff0c\u4ee3\u53f7\u4e3a9\u7684\u4fe1\u53f7\u8868\u793a\u5c06\u5f3a\u5236\u4e2d\u65ad\u4e00\u4e2a\u7a0b\u5e8f\u7684\u8fd0\u884c\u3002\u8fd9\u91cc\u8981\u7528\u5230\u7684\u4fe1\u53f7\u4e3a0\uff0c\u4ee3\u53f7\u4e3a0\u7684\u4fe1\u53f7\u5e76\u4e0d\u8868\u793a\u8981\u5173\u95ed\u67d0\u4e2a\u7a0b\u5e8f\uff0c\u800c\u8868\u793a\u5bf9\u7a0b\u5e8f(\u8fdb\u7a0b)\u7684\u8fd0\u884c\u72b6\u6001\u8fdb\u884c\u76d1\u63a7\uff0c\u5982\u679c\u53d1\u73b0\u8fdb\u7a0b<strong>\u5173\u95ed\u6216\u5176\u4ed6\u5f02\u5e38\uff0c\u5c06\u8fd4\u56de\u72b6\u6001\u78011<\/strong>\uff0c\u53cd\u4e4b\uff0c\u5982\u679c\u53d1\u73b0\u8fdb\u7a0b<strong>\u8fd0\u884c\u6b63\u5e38\uff0c\u5c06\u8fd4\u56de\u72b6\u6001\u78010<\/strong>\u3002Vrrp_script\u6a21\u5757\u6b63\u662f\u5229\u7528\u4e86kilall\u547d\u4ee4\u7684\u8fd9\u4e2a\u7279\u6027\uff0c\u53d8\u76f8\u7684\u5b9e\u73b0\u4e86\u5bf9\u670d\u52a1\u8fd0\u884c\u72b6\u6001\u7684\u76d1\u63a7\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uff37db73\">\u4e0b\u9762\u770b\u4e00\u4e2a\u5b9e\u4f8b:<\/p>\n\n\n\n<pre id=\"hPVru\" class=\"wp-block-code\"><code>vrrp_script check_mysqld \n{\n  script \"killall -0 mysqld\"\n  interval2\n}\ntrack_script{\n  check_mysgld\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u44a6b636\">\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a\u670d\u52a1\u76d1\u63a7\u6a21\u5757check_mysqld\uff0c\u5176\u91c7\u7528\u7684\u76d1\u63a7\u7684\u65b9\u5f0f\u662f\u901a\u8fc7\u201ckilall-0mysqld\u201d\u7684\u65b9\u5f0f\uff0c\u5176\u4e2d\u201cinterval\u201d\u9009\u9879\u68c0\u67e5\u7684\u65f6\u95f4\u95f4\u9694\uff0c\u53732\u79d2\u949f\u6267\u884c\u4e00\u6b21\u68c0\u6d4b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u44a6b636\"><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-15-1024x94.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"94\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-15-1024x94.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-77\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u44a6b636\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uc73c9392\">\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<pre id=\"qY7Cs\" class=\"wp-block-code\"><code>global_defs {\n   notification_email {\n     acassen@firewall.loc\n     failover@firewall.loc\n     sysadmin@firewall.loc\n   }\n   notification_email_from Alexandre.Cassen@firewall.loc\n   smtp_server 192.168.200.1\n   smtp_connect_timeout 30\n   router_id LVS_DEVEL\n}\n\nvrrp_script check_httpd {\n    script \"killall -0 httpd\"\n    interval 2\n    }\n\nvrrp_instance HA_1 {\n    state MASTER  # \u81ea\u5b9a\u4e49\u4fee\u6539\u4e3b\u8282\u70b9\u548c\u5907\u7528\u8282\u70b9\n    interface eth0\n    virtual_router_id 80\n    priority 100\n    advert_int 2\n    authentication {\n        auth_type PASS\n        auth_pass qwaszx\n    }\n    notify_master \"\/etc\/keepalived\/master.sh \"\n    notify_backup \"\/etc\/keepalived\/backup.sh\"\n    notify_fault \"\/etc\/keepalived\/fault.sh\"\n\n    track_script {\n    check_httpd\n    }\n\n    virtual_ipaddress {\n        192.168.66.80\/24 dev eth0   #\u6539\u6210\u81ea\u5df1\u7684\u7f51\u6bb5\n    }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u4cd27cbf\">Keepalived\u9ad8\u53ef\u7528\u914d\u7f6e\u4e2d\u7684\u4e09\u4e2a\u811a\u672c\u6587\u4ef6\u8bb0\u5f97\u6539\u6210\u6743\u9650755\uff1a<\/p>\n\n\n\n<pre id=\"SIF4P\" class=\"wp-block-code\"><code>Keepalived\u9ad8\u53ef\u7528\u914d\u7f6e\u4e2d\u7684\u4e09\u4e2a\u811a\u672c\u6587\u4ef6\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a\n\n\u5176\u4e2d\uff0cmaster.sh\u6587\u4ef6\u7684\u5185\u5bb9\u4e3a\uff1a\n#!\/bin\/bash\nLOGFILE=\/var\/log\/keepalived-mysql-state.log\necho \"&#91;Master]\" &gt;&gt; $LOGFILE\ndate &gt;&gt; $LOGFILE\n\nbackup.sh\u6587\u4ef6\u7684\u5185\u5bb9\u4e3a\uff1a\n#!\/bin\/bash\nLOGFILE=\/var\/log\/keepalived-mysql-state.log\necho \"&#91;Backup]\" &gt;&gt; $LOGFILE\ndate &gt;&gt; $LOGFILE\n\nfault.sh\u6587\u4ef6\u7684\u5185\u5bb9\u4e3a\uff1a\n#!\/bin\/bash\nLOGFILE=\/var\/log\/keepalived-mysql-state.log\necho \"&#91;Fault]\" &gt;&gt; $LOGFILE\ndate &gt;&gt; $LOGFILE\n\n\u8fd9\u4e09\u4e2a\u811a\u672c\u7684\u4f5c\u7528\u662f\u76d1\u63a7Keepalived\u89d2\u8272\u7684\u5207\u6362\u8fc7\u7a0b\uff0c\u4ece\u800c\u5e2e\u52a9\u8bfb\u8005\u7406\u89e3notify\u53c2\u6570\u7684\u6267\u884c\u8fc7\u7a0b\u3002\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u214cab30\">\u8bbe\u7f6e\u4e0d\u62a2\u5360\u6a21\u5f0f\uff1anopreempt<\/p>\n\n\n\n<pre id=\"gFfw0\" class=\"wp-block-code\"><code>vrrp_instance ha_1{\nstate  BACKUP #\u5168\u90e8\u8bbe\u7f6e\u4e3a\u5907\u7528\u8282\u70b9\ninterface enp0s8\nvirtual_router_id 125\npriority 100\nadvert int 2\nnopreempt #\u52a0\u4e0a\u5173\u952e\u8bcdnopreempt\n  ...\n}<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"ESTwM\">2\u3001\u68c0\u6d4b\u7aef\u53e3\u8fd0\u884c\u72b6\u6001<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uc96654ae\">\u68c0\u6d4b\u7aef\u53e3\u7684\u8fd0\u884c\u72b6\u6001, \u4e5f\u662f\u6700\u5e38\u89c1\u7684\u670d\u52a1\u76d1\u63a7\u65b9\u5f0f\uff0c\u5728Keepalived\u7684vrrp_script\u6a21\u5757\u4e2d\u53ef\u4ee5\u901a\u8fc7\u5982\u4e0b\u65b9\u5f0f\u5bf9\u672c\u673a\u7684\u7aef\u53e3\u8fdb\u884c\u68c0\u6d4b:<\/p>\n\n\n\n<pre id=\"d4JWc\" class=\"wp-block-code\"><code>script \"&lt;\/dev\/tcp\/127.0.0.1\/80\"\n    interval 2\n    fall 2 #\u5931\u8d25\u51e0\u6b21\n    rise 1 # \u6210\u529f\u51e0\u6b21\n}\ntrack_script {\n    check_httpd}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uceac2175\">\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d, \u901a\u8fc7 \u201c&lt;\/dev\/tcp\/127.0.0.1\/80\u201d \u8fd9\u6837\u7684\u65b9\u5f0f\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5bf9\u672c\u673a80\u7aef\u53e3\u7684\u72b6\u6001\u68c0\u6d4b, \u5176\u4e2d\uff0c\u201cfall\u201d\u9009\u9879\u8868\u793a\u68c0\u6d4b\u5230\u5931\u8d25\u7684\u6700\u5927\u6b21\u6570, \u4e5f\u5c31\u662f\u8bf4, \u5982\u679c\u8bf7\u6c42\u5931\u8d25\u4e24\u6b21, \u5c31\u8ba4\u4e3a\u6b64\u8282\u70b9\u8d44\u6e90\u53d1\u751f\u6545\u969c, \u5c06\u8fdb\u884c\u5207\u6362\u64cd\u4f5c; \u201crise\u201d \u8868\u793a\u5982\u679c\u8bf7\u6c42\u4e00\u6b21\u6210\u529f, \u5c31\u8ba4\u4e3a\u6b64\u8282\u70b9\u8d44\u6e90\u6062\u590d\u6b63\u5e38\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"G6i0N\">3\u3001\u901a\u8fc7shell\u8bed\u53e5\u8fdb\u884c\u72b6\u6001\u76d1\u63a7<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u9c528aaa\">\u5728Keepalived\u7684vrrp_script\u6a21\u5757\u4e2d\u751a\u81f3\u53ef\u4ee5\u76f4\u63a5\u5f15\u7528shell\u8bed\u53e5\u8fdb\u884c\u72b6\u6001\u76d1\u63a7,\u4f8b\u5982\u4e0b\u9762\u8fd9\u4e2a\u793a\u4f8b:<\/p>\n\n\n\n<pre id=\"qmDeL\" class=\"wp-block-code\"><code>vrrp_script chk_httpd {\n    script \"if &#91; -f \/var\/run\/httpd\/httpd.pid ];then exit 0; else exit 1; fi\"\n    interval 2\n    fall 1\n    rise 1\n}\ntrack_script {chk_httpd\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u97a07028\">\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d,\u901a\u8fc7\u4e00\u4e2ashell\u5224\u65ad\u8bed\u53e5,\u68c0\u6d4bhttpd.pid\u6587\u4ef6\u662f\u5426\u5b58\u5728,\u5982\u679c\u5b58\u5728,\u5c31\u8ba4\u4e3a\u72b6\u6001\u6b63\u5e38,\u5426\u5219\u8ba4\u4e3a\u72b6\u6001\u5f02\u5e38,\u8fd9\u79cd\u76d1\u6d4b\u65b9\u5f0f\u5bf9\u4e8e\u4e00\u4e9b\u7b80\u5355\u7684\u5e94\u7528\u76d1\u63a7\u6216\u8005\u6d41\u7a0b\u76d1\u63a7\u975e\u5e38\u6709\u7528\u3002\u4ece\u8fd9\u91cc\u4e5f\u53ef\u4ee5\u5f97\u77e5,vrrp_script\u6a21\u5757\u652f\u6301\u7684\u76d1\u63a7\u65b9\u5f0f\u5341\u5206\u7075\u6d3b\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"HUnR5\">4\u3001\u901a\u8fc7\u811a\u672c\u8fdb\u884c\u670d\u52a1\u72b6\u6001\u76d1\u63a7<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u3ad14cdd\">\u8fd9\u662f\u6700\u5e38\u89c1\u7684\u76d1\u63a7\u65b9\u5f0f, \u5176\u76d1\u63a7\u8fc7\u7a0b\u7c7b\u4f3c\u4e8eNagios\u7684\u6267\u884c\u65b9\u5f0f, \u4e0d\u540c\u7684\u662f,\u8fd9\u91cc\u53ea\u67090\u30011\u4e24\u79cd\u8fd4\u56de\u72b6\u6001, \u4f8b\u5982\u4e0b\u9762\u8fd9\u4e2a\u793a\u4f8b:<\/p>\n\n\n\n<pre id=\"YppCQ\" class=\"wp-block-code\"><code>vrrp_script chk_mysqld {\nscript \"\/etc\/keepalived\/check_mysqld.sh\"\ninterval 2\n}\ntrack_script {\nchk_mysqld\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uc1ac37c9\">\u5176\u4e2d, check_mysqld.sh\u7684\u5185\u5bb9\u4e3a:<\/p>\n\n\n\n<pre id=\"BSiFf\" class=\"wp-block-code\"><code>#!\/bin\/bash\nMYSQL=\/usr\/bin\/mysql\nMYSQL_HOST=localhost\nMYSQL_USER=root\nMYSQL_PASSWORD='xxxxxx'\n$MYSQL-h $MYSQL_HOST -u $MYSQL_USER -p$MYSQL_PASSWORD -e \"show status;\" &gt; \/dev\/null 2&gt;&amp;1\nif &#91;$? = 0 ]; then\n    MYSQL_STATUS=0\nelse\n    MYSQL_STATUS=1\nfi\nexit $MYSQL_STATUS<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u6a7338d8\">\u8fd9\u4e2a\u4e00\u4e2a\u6700\u7b80\u5355\u7684\u5b9e\u73b0mysal\u670d\u52a1\u72b6\u6001\u68c0\u6d4b\u7684shel\u811a\u672c\uff0c\u5b83\u901a\u8fc7\u767b\u5f55mysal\u6570\u636e\u5e93\u540e\u6267\u884c\u67e5\u8be2\u64cd\u4f5c\u6765\u68c0\u6d4bmysq\u8fd0\u884c\u662f\u5426\u6b63\u5e38\uff0c\u5982\u679c\u68c0\u6d4b\u6b63\u5802\uff0c\u5c06\u8fd4\u56de\u72b6\u6001\u78010\uff0c\u5426\u5219\u8fd4\u56de\u72b6\u6001\u78011\u3002\u5176\u5b9e\u5f88\u591a\u5728Nagios\u4e0b\u8fd0\u884c\u7684\u811a\u672c\uff0c\u53ea\u8981\u7a0d\u4f5c\u4fee\u6539\uff0c\u5373\u53ef\u5728\u8fd9\u91cc\u4f7f\u7528\uff0c\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ud0eb3933\">\u516d\u3001keepalived\u95ee\u9898\u6392\u67e5\u6280\u5de7<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u6026ecbd\">\u68c0\u6d4b\u4e24\u4e2akeepalived\u4e3b\u673a\u4e4b\u95f4\u662f\u5426\u80fd\u901a\u4fe1\u7684\u529e\u6cd5\u6709:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u3506224b\">1\u3001\u505c\u6389\u4e00\u4e2akeepalived\uff0c\u770b\u53e6\u5916\u4e00\u4e2akeepalived\u7684\u65e5\u5fd7\/var\/log\/messages\u91cc\u662f\u5426\u6709\u65b0\u7684\u65e5\u5fd7<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ub1392c23\">2\u3001\u7528\u55c5\u63a2\u5668\u6293\u5305\uff0c\u4f8b\u5982<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u23066b6b\">tcpdump -v -i eth1 host 224.0.0.18<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u45d3363d\">tcpdump -vvv -n -i eth1 host 224.0.0.18<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ua02f2387\">\u5176\u4e2d\uff0c224.0.0.18\u662fVRRP\u7ec4\u64ad\u4f7f\u7528\u7684\u76ee\u7684\u5730\u5740\uff0c\u9ed8\u8ba4\u4e3a\u7ec4\u64ad\u6bcf\u79d2\u53d1\u9001\u4e00\u6b21\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uf987f3c8\">\u53e6\u5916\uff0c\u5728\u505a\u96c6\u7fa4\u7684\u65f6\u5019\uff0c\u5c3d\u91cf\u5173\u95ed\u6bcf\u4e2a\u4e3b\u673a\u4e0a\u7684selinux\uff08\/etc\/selinux\/config \u5173\u95edselinux\uff1adisable\uff09\u670d\u52a1\u548ciptables\u670d\u52a1\uff0c\u8fd9\u6837\u4f1a\u51cf\u5c11\u5f88\u591a\u95ee\u9898\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"HeiUX\">\u4e03\u3001\u9ad8\u6027\u80fd\u8d1f\u8f7d\u5747\u8861\u96c6\u7fa4LVS<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"qPKLB\">1\u3001LVS\u4f53\u7cfb\u7ed3\u6784<\/h4>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-21.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"893\" height=\"561\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-21.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-92\"  sizes=\"auto, (max-width: 893px) 100vw, 893px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u8895fdf0\">\u4f7f\u7528LVS\u67b6\u8bbe\u7684\u670d\u52a1\u5668\u96c6\u7fa4\u7cfb\u7edf\u6709\u4e09\u4e2a\u90e8\u5206\u7ec4\u6210:\u6700\u524d\u7aef\u7684\u8d1f\u8f7d\u5747\u8861\u5c42\uff0c\u7528Load Balancer\u8868\u793a\uff0c\u4e2d\u95f4\u7684\u670d\u52a1\u5668\u7fa4\u7ec4\u5c42\uff0c\u7528Server Array\u8868\u793a\uff0c\u6700\u5e95\u7aef\u7684\u6570\u636e\u5171\u4eab\u5b58\u50a8\u5c42\uff0c\u7528Shared Storage\u8868\u793a\uff0c\u5728\u7528\u6237\u770b\u6765\uff0c\u6240\u6709\u7684\u5185\u90e8\u5e94\u7528\u90fd\u662f\u900f\u660e\u7684\uff0c\u7528\u6237\u53ea\u662f\u5728\u4f7f\u7528\u4e00\u4e2a\u865a\u62df\u670d\u52a1\u5668\u63d0\u4f9b\u7684\u9ad8\u6027\u80fd\u670d\u52a1\u3002LVS\u4f53\u7cfb\u7ed3\u6784\u5982\u4e0b\u56fe\u6240\u793a:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"Ln8Pg\">2\u3001IP\u8d1f\u8f7d\u5747\u8861(NAT\u3001TUN\u548cDR)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u400a01c3\">\u8d1f\u8f7d\u5747\u8861\u6280\u672f\u6709\u5f88\u591a\u5b9e\u73b0\u65b9\u6848\uff0c\u6709\u57fa\u4e8eDNS\u57df\u540d\u8f6e\u6d41\u89e3\u6790\u7684\u65b9\u6cd5\u3001\u6709\u57fa\u4e8e\u5ba2\u6237\u7aef\u8c03\u5ea6\u8bbf\u95ee\u7684\u65b9\u6cd5\u3001\u6709\u57fa\u4e8e\u5e94\u7528\u5c42\u7cfb\u7edf\u8d1f\u8f7d\u7684\u8c03\u5ea6\u65b9\u6cd5\uff0c\u8fd8\u6709\u57fa\u4e8eIP\u5730\u5740\u7684\u8c03\u5ea6\u65b9\u6cd5\uff0c\u5728\u8fd9\u4e9b\u8d1f\u8f7d\u8c03\u5ea6\u7b97\u6cd5\u4e2d\uff0c\u6267\u884c\u6548\u7387\u6700\u9ad8\u7684\u662fIP\u8d1f\u8f7d\u5747\u8861\u6280\u672f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ue6016eec\">LVS\u7684IP\u8d1f\u8f7d\u5747\u8861\u6280\u672f\u662f\u901a\u8fc7IPVS\u6a21\u5757\u6765\u5b9e\u73b0\u7684\uff0cIPVS\u662fLVS\u96c6\u7fa4\u7cfb\u7edf\u7684\u6838\u5fc3\u8f6f\u4ef6\uff0cIvs\u96c6\u7fa4\u6574\u4e2a\u6267\u884c\u6d41\u7a0b\u4e3a:\u8bbf\u95ee\u7684\u8bf7\u6c42\u9996\u5148\u7ecf\u8fc7VIP\u5230\u8fbe\u8d1f\u8f7d\u8c03\u5ea6\u5668\uff0c\u7136\u540e\u7531\u8d1f\u8f7d\u8c03\u5ea6\u5668\u4eceReal Server\u5217\u8868\u4e2d\u9009\u53d6\u4e00\u4e2a\u670d\u52a1\u8282\u70b9\u54cd\u5e94\u7528\u6237\u7684\u8bf7\u6c42\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u81d02932\">\u5f53\u7528\u6237\u7684\u8bf7\u6c42\u5230\u8fbe\u8d1f\u8f7d\u8c03\u5ea6\u5668\u540e\uff0c\u8c03\u5ea6\u5668\u5982\u4f55\u5c06\u8bf7\u6c42\u53d1\u9001\u5230\u63d0\u4f9b\u670d\u52a1\u7684Real Server\u8282\u70b9\uff0c\u800cReal Server\u8282\u70b9\u5982\u4f55\u8fd4\u56de\u6570\u636e\u7ed9\u7528\u6237\uff0c\u662fIPVS\u5b9e\u73b0\u7684\u91cd\u70b9\u6280\u672f\uff0cIPVS\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u673a\u5236\u6709\u4e09\u79cd\u5206\u522b\u662fNAT\u3001TUN\u548cDR\uff0c\u8be6\u8ff0\u5982\u4e0b:<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"G36xX\">a. DR\u6a21\u5f0f<\/h5>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-22.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"792\" height=\"726\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-22.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-93\"  sizes=\"auto, (max-width: 792px) 100vw, 792px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u10579c44\">DR\u6a21\u5f0f:\u5373Virtual Server via Direct Routing\uff0c\u4e5f\u5c31\u662f\u7528\u76f4\u63a5\u8def\u7531\u6280\u672f\u5b9e\u73b0\u865a\u62df\u670d\u52a1\u5668\u3002VS\/DR\u901a\u8fc7\u6539\u5199\u8bf7\u6c42\u62a5\u6587\u7684MAC\u5730\u5740\uff0c\u5c06\u8bf7\u6c42\u53d1\u9001\u5230Real Server\uff0c\u800cReal Server\u5c06\u54cd\u5e94\u76f4\u63a5\u8fd4\u56de\u7ed9\u5ba2\u6237\u3002\u8fd9\u79cd\u8c03\u5ea6\u65b9\u5f0f\u7684\u6027\u80fd\u6700\u597d\u7684\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1\u3001DR\u6a21\u5f0f\u662f\u901a\u8fc7\u5728\u8c03\u5ea6\u5668LB\u4e0a\u4fee\u6539\u6570\u636e\u5305\u7684\u76ee\u7684MAC\u5730\u5740\u5b9e\u73b0\u8f6c\u53d1\u3002\u56e0\u6b64\u6570\u636e\u5305\u6765\u6e90\u5730\u5740\u4fdd\u6301\u4e0d\u53d8\uff0c\u76ee\u7684\u5730\u5740\u4ecd\u7136\u662fVIP\u5730\u5740\u3002<\/li>\n\n\n\n<li>2\u3001\u8bf7\u6c42\u7684\u62a5\u6587\u7ecf\u8fc7\u8c03\u5ea6\u5668\uff0c\u800cRS\u54cd\u5e94\u5904\u7406\u540e\u7684\u62a5\u6587\u65e0\u9700\u7ecf\u8fc7\u8c03\u5ea6\u5668LB\uff0c\u56e0\u6b64\u5e76\u53d1\u8bbf\u95ee\u91cf\u5927\u65f6\u4f7f\u7528\u6548\u7387\u5f88\u9ad8(\u548cNAT\u6a21\u5f0f\u6bd4)<\/li>\n\n\n\n<li>3\u3001\u56e0\u4e3aDR\u6a21\u5f0f\u662f\u901a\u8fc7MAC\u5730\u5740\u6539\u5199\u673a\u5236\u5b9e\u73b0\u8f6c\u53d1\uff0c\u56e0\u6b64\u6240\u6709RS\u8282\u70b9\u548c\u8c03\u5ea6\u5668LB\u53ea\u80fd\u5728\u4e00\u4e2a\u5c40\u57df\u7f51\u91cc\u9762<\/li>\n\n\n\n<li>4\u3001RS\u4e3b\u673a\u9700\u8981\u7ed1\u5b9aVIP\u5730\u5740\u5728LO\u63a5\u53e3\u4e0a\uff0c\u5e76\u4e14\u9700\u8981\u914d\u7f6eARP\u6291\u5236\u3002<\/li>\n\n\n\n<li>5\u3001RS\u8282\u70b9\u7684\u9ed8\u8ba4\u7f51\u5173\u4e0d\u9700\u8981\u914d\u7f6e\u6210LB\uff0c\u800c\u662f\u76f4\u63a5\u914d\u7f6e\u4e3a\u4e0a\u7ea7\u8def\u7531\u7684\u7f51\u5173\uff0c\u80fd\u8ba9RS\u76f4\u63a5\u51fa\u7f51\u5c31\u53ef\u4ee5\u3002<\/li>\n\n\n\n<li>6\u3001\u7531\u4e8eDR\u6a21\u5f0f\u7684\u8c03\u5ea6\u5668\u4ec5\u505aMAC\u5730\u5740\u7684\u6539\u5199\uff0c\u6240\u4ee5\u8c03\u5ea6\u5668LB\u5c31\u4e0d\u80fd\u6539\u5199\u76ee\u6807\u7aef\u53e3\uff0c\u90a3\u4e48RS\u670d\u52a1\u5668\u5c31\u5f97\u4f7f\u7528\u548cVIP\u76f8\u540c\u7684\u7aef\u53e3\u63d0\u4f9b\u670d\u52a1\u3002<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"PFSTy\">b. NAT\/FULL NAT\u6a21\u5f0f<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ue04c5042\">NAT\u6a21\u5f0f: \u5373Virtual Server via Network Address Translation,\u4e5f\u5c31\u662f\u7f51\u7edc\u5730\u5740\u7ffb\u8bd1\u6280\u672f\u5b9e\u73b0\u865a\u62df\u670d\u52a1\u5668\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u7568452d\">\u5f53\u7528\u6237\u8bf7\u6c42\u5230\u8fbe\u8c03\u5ea6\u5668\u65f6\uff0c\u8c03\u5ea6\u5668\u5c06\u8bf7\u6c42\u62a5\u6587\u7684\u76ee\u6807\u5730\u5740(\u5373\u865a\u62dfIP\u5730\u5740)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uff3131c8\">\u6539\u5199\u6210\u9009\u5b9a\u7684Real Server\u5730\u5740\uff0c\u540c\u65f6\u5c06\u62a5\u6587\u7684\u76ee\u6807\u7aef\u53e3\u4e5f\u6539\u6210\u9009\u5b9a\u7684Real Server\u7684\u76f8\u5e94\u7aef\u53e3\uff0c\u6700\u540e\u5c06\u62a5\u6587\u8bf7\u6c42\u53d1\u9001\u5230\u9009\u5b9a\u7684RealServer\u3002\u5728\u670d\u52a1\u5668\u7aef\u5f97\u5230\u6570\u636e\u540e\uff0cReal Server\u5c06\u6570\u636e\u8fd4\u56de\u7ed9\u7528\u6237\u65f6\uff0c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u0fed2af0\">\u9700\u8981\u518d\u6b21\u7ecf\u8fc7\u8d1f\u8f7d\u8c03\u5ea6\u5668\u5c06\u62a5\u6587\u7684\u6e90\u5730\u5740\u548c\u6e90\u7aef\u53e3\u6539\u6210\u865a\u62dfIP\u5730\u5740\u548c\u76f8\u5e94\u7aef\u53e3\uff0c\u7136\u540e\u628a\u6570\u636e\u53d1\u9001\u7ed9\u7528\u6237\uff0c\u5b8c\u6210\u6574\u4e2a\u8d1f\u8f7d\u8c03\u5ea6\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-23.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"711\" height=\"708\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-23.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-94\"  sizes=\"auto, (max-width: 711px) 100vw, 711px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u0fed2af0\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u0fed2af0\"><\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"W36XP\">c. NAT\u6a21\u5f0f\u4f18\u7f3a\u70b9<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uf98f0102\">1\u3001NAT\u6a21\u5f0f\u4e0d\u9700\u8981LBIP\u548crealserverip\u5728\u540c\u4e00\u4e2a\u7f51\u6bb5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ue41c29f0\">2\u3001NAT\u6280\u672f\u5c06\u8bf7\u6c42\u7684\u62a5\u6587\u548c\u54cd\u5e94\u7684\u62a5\u6587\u90fd\u9700\u8981\u901a\u8fc7LB\u8fdb\u884c\u5730\u5740\u6539\u5199\uff0c\u56e0\u6b64\u7f51\u7ad9\u8bbf\u95ee\u91cf\u6bd4\u8f83\u5927\u7684\u65f6\u5019\uff0cLB\u8d1f\u8f7d\u5747\u8861\u8c03\u5ea6\u5668\u6709\u6bd4\u8f83\u5927\u7684\u74f6\u9888\uff0c\u4e00\u822c\u8981\u6c42\u6700\u591a\u4e4b\u80fd10-20\u53f0\u8282\u70b9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ubc4a4e39\">3\u3001\u53ea\u9700\u8981\u5728LB\u4e0a\u914d\u7f6e\u4e00\u4e2a\u516c\u7f51IP\u5730\u5740\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u3d83638a\">4\u3001\u6bcf\u53f0\u5185\u90e8\u7684realserver\u670d\u52a1\u5668\u7684\u7f51\u5173\u5730\u5740\u5fc5\u987b\u662f\u8c03\u5ea6\u5668LB\u7684\u5185\u7f51\u5730\u5740\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u499cba50\">5\u3001NAT\u6a21\u5f0f\u652f\u6301\u5bf9IP\u5730\u5740\u548c\u7aef\u53e3\u8fdb\u884c\u8f6c\u6362\u3002\u5373\u7528\u6237\u8bf7\u6c42\u7684\u7aef\u53e3\u548c\u771f\u5b9e\u670d\u52a1\u5668\u7684\u7aef\u53e3\u53ef\u4ee5\u4e0d\u4e00\u81f4\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"BXHcE\">d. FULL NAT\u6a21\u5f0f\u4f18\u7f3a\u70b9\u4e0e\u6ce8\u610f\u4e8b\u9879<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u558371a5\">FULLNATT\u6a21\u5f0f\uff0c\u4e0eNAT\u6a21\u5f0f\u57fa\u672c\u4e00\u6837\uff0c\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\u5bf9\u62a5\u6587\u7684\u5904\u7406\u65b9\u9762:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ud3363697\">1\u3001NAT\u6a21\u5f0fclient\u8bf7\u6c42VIP \u65f6\uff0c\u4ec5\u66ff\u6362\u4e86package\u7684dstip\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u62623259\">2\u3001FULL NAT \u5728client\u8bf7\u6c42VIP \u65f6\uff0c\u4e0d\u4ec5\u66ff\u6362\u4e86package \u7684dst ip\uff0c\u8fd8\u66ff\u6362\u4e86package\u7684src ip;VIP\u8fd4\u56de\u7ed9client\u65f6\u4e5f\u66ff\u6362\u4e86srcip.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u01e05902\">3\u3001\u3001FULLNAT\u6a21\u5f0f\u4e5f\u4e0d\u9700\u8981LBIP\u548crealserverip\u5728\u540c\u4e00\u4e2a\u7f51\u6bb5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u76b4592c\">4\u3001FULLNAT\u56e0\u4e3a\u8981\u66f4\u65b0SoUrceIP\u6240\u4ee5\u6027\u80fd\u6b63\u5e38\u6bd4NAT\u6a21\u5f0f\u4e0b\u964d10%\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"F6v6O\">e. IP TUNNEL\u6a21\u5f0f<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u24cc8e47\">TUN :Virtual Server via IP Tunneling\u4e5f\u5c31\u662f\u901a\u8fc7IP\u96a7\u9053\u6280\u672f\u5b9e\u73b0\u865a\u62df\u670d\u52a1\u5668\u3002\u5728VS\/TUN\u65b9\u5f0f\u4e2d\uff0c\u8c03\u5ea6\u5668\u91c7\u7528IP\u96a7\u9053\u6280\u672f\u5c06\u7528\u6237\u8bf7\u6c42\u8f6c\u53d1\u5230\u67d0\u4e2aReal Server\uff0c\u800c\u8fd9\u4e2aRealServer\u5c06\u76f4\u63a5\u54cd\u5e94\u7528\u6237\u7684\u8bf7\u6c42\uff0c\u4e0d\u518d\u7ecf\u8fc7\u524d\u7aef\u8c03\u5ea6\u5668\u3002\u6b64\u5916\uff0c\u5bf9Real Server\u7684\u5730\u57df\u4f4d\u7f6e\u6ca1\u6709\u8981\u6c42\uff0c\u53ef\u4ee5\u548cDirector Server\u4f4d\u4e8e\u540c\u4e00\u4e2a\u7f51\u6bb5\uff0c\u4e5f\u53ef\u4ee5\u5728\u72ec\u7acb\u7684\u4e00\u4e2a\u7f51\u7edc\u4e2d\u3002\u56e0\u6b64\uff0c\u5728TUN\u65b9\u5f0f\u4e2d\uff0c\u8c03\u5ea6\u5668\u5c06\u53ea\u5904\u7406\u7528\u6237\u7684\u62a5\u6587\u8bf7\u6c42\uff0c\u4ece\u800c\u4f7f\u96c6\u7fa4\u7cfb\u7edf\u7684\u541e\u5410\u91cf\u5927\u5927\u63d0\u9ad8\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ud099f5b1\">\u5b83\u548cNAT\u6a21\u5f0f\u4e0d\u540c\u7684\u662f\uff0c\u5b83\u5728LB\u548cRS\u4e4b\u95f4\u7684\u4f20\u8f93\u4e0d\u7528\u6539\u5199IP\u5730\u5740\u3002\u800c\u662f\u628a\u5ba2\u6237\u8bf7\u6c42\u5305\u5c01\u88c5\u5728\u4e00\u4e2aIPtunnel\u91cc\u9762\uff0c\u7136\u540e\u53d1\u9001\u7ed9RS\u8282\u70b9\u670d\u52a1\u5668\uff0c\u8282\u70b9\u670d\u52a1\u5668\u63a5\u6536\u5230\u4e4b\u540e\u89e3\u5f00IPtunnel\u540e\uff0c\u8fdb\u884c\u54cd\u5e94\u5904\u7406\u3002\u5e76\u4e14\u76f4\u63a5\u628a\u5305\u901a\u8fc7\u81ea\u5df1\u7684\u5916\u7f51\u5730\u5740\u53d1\u9001\u7ed9\u5ba2\u6237\u4e0d\u7528\u7ecf\u8fc7LB\u670d\u52a1\u5668\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-24.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"741\" height=\"699\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-24.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-95\"  sizes=\"auto, (max-width: 741px) 100vw, 741px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ud099f5b1\"><\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"jFiaN\">f. IP TUNNEL\u6a21\u5f0f\u7684\u6ce8\u610f\u4e8b\u9879:<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u09b4a8ba\">1\u3001TUNNEL\u6a21\u5f0f\u5fc5\u987b\u5728\u6240\u6709\u7684realserver \u673a\u5668\u4e0a\u9762\u7ed1\u5b9aVIP\u7684IP\u5730\u5740<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ue2375227\">2\u3001TUNNEL\u6a21\u5f0f\u7684vip&#8211;&gt;realserver\u7684\u5305\u901a\u4fe1\u901a\u8fc7TUNNEL\u6a21\u5f0f\uff0c\u4e0d\u7ba1\u662f\u5185\u7f51\u548c\u5916\u7f51\u90fd\u80fd\u901a\u4fe1\uff0c\u6240\u4ee5\u4e0d\u9700\u8981<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"udd1cd6a2\">Ivs vip\u8ddfrealserver \u5728\u540c\u4e00\u4e2a\u7f51\u6bb5\u5185<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u6f91e927\">3\u3001TUNNEL\u6a21\u5f0frealserver\u4f1a\u628apacket\u76f4\u63a5\u53d1\u7ed9client \u4e0d\u4f1a\u7ed9lvs\u4e86<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u669091e1\">4\u3001TUNNEL\u6a21\u5f0f\u8d70\u7684\u96a7\u9053\u6a21\u5f0f\uff0c\u6240\u4ee5\u8fd0\u7ef4\u8d77\u6765\u6bd4\u8f83\u96be\uff0c\u6240\u4ee5\u4e00\u822c\u4e0d\u7528\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"mMy1V\">3\u3001LVS\u8d1f\u8f7d\u8c03\u5ea6\u7b97\u6cd5<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u34461747\">LVs\u7684\u8c03\u5ea6\u7b97\u6cd5\u51b3\u5b9a\u4e86\u5982\u4f55\u5728\u96c6\u7fa4\u8282\u70b9\u4e4b\u95f4\u5206\u5e03\u5de5\u4f5c\u8d1f\u8377\u3002\u5f53director\u8c03\u5ea6\u5668\u6536\u5230\u6765\u81ea\u5ba2\u6237\u7aef\u8bbf\u95eeVIP\u7684\u4e0a\u7684\u96c6\u7fa4\u670d\u52a1\u7684\u5165\u7ad9\u8bf7\u6c42\u65f6\uff0cdirector\u8c03\u5ea6\u5668\u5fc5\u987b\u51b3\u5b9a\u54ea\u4e2a\u96c6\u7fa4\u8282\u70b9\u5e94\u8be5\u5904\u7406\u8bf7\u6c42\u3002Director\u8c03\u5ea6\u5668\u7528\u7684\u8c03\u5ea6\u65b9\u6cd5\u57fa\u672c\u5206\u4e3a\u4e24\u7c7b:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u0f801638\">\u56fa\u5b9a\u8c03\u5ea6\u7b97\u6cd5:rr\uff0cwrr\uff0cdh\uff0cshA<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ub0e8c910\">\u52a8\u6001\u8c03\u5ea6\u7b97\u6cd5:wlc\uff0clc\uff0clblc\uff0clblcr<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-25-1024x457.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"457\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-25-1024x457.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-96\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ub0e8c910\"><\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"VxsbC\">4\u3001LVS\u8c03\u5ea6\u7b97\u6cd5\u7684\u751f\u4ea7\u73af\u5883\u9009\u578b<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u7e7909d8\">1\u3001\u4e00\u822c\u7684\u7f51\u7edc\u670d\u52a1\uff0c\u5982www\uff0cmail\uff0cmysql\u7b49\u5e38\u7528\u7684LVS\u8c03\u5ea6\u7b97\u6cd5\u4e3a:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uf859f28a\">\u57fa\u672c\u8f6e\u8be2\u8c03\u5ea6rr<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u7b366a52\">\u52a0\u6743\u6700\u5c0f\u8fde\u63a5\u8c03\u5ea6wlc<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u4c18e7f4\">\u52a0\u6743\u8f6e\u8be2\u8c03\u5ea6wrr<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u228e7bee\">2\u3001\u57fa\u4e8e\u5c40\u90e8\u6027\u7684\u6700\u5c0f\u8fde\u63a5Iblc\u548c\u5e26\u590d\u5236\u7684\u7ed9\u4e88\u5c40\u90e8\u6027\u6700\u5c0f\u8fde\u63a5Iblcr\u4e3b\u8981\u9002\u7528\u4e8ewebcache\u548cDBcache<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uaee2fe6b\">3\u3001\u6e90\u5730\u5740\u6563\u5217\u8c03\u5ea6SH\u548c\u76ee\u6807\u5730\u5740\u6563\u5217\u8c03\u5ea6DH\u53ef\u4ee5\u7ed3\u5408\u4f7f\u7528\u5728\u9632\u706b\u5899\u96c6\u7fa4\u4e2d\uff0c\u53ef\u4ee5\u4fdd\u8bc1\u6574\u4e2a\u7cfb\u7edf\u7684\u51fa\u5165\u53e3\u552f\u4e00\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u1a461b59\">\u5b9e\u9645\u9002\u7528\u4e2d\u8fd9\u4e9b\u7b97\u6cd5\u7684\u9002\u7528\u8303\u56f4\u5f88\u591a\uff0c\u5de5\u4f5c\u4e2d\u6700\u597d\u53c2\u8003\u5185\u6838\u4e2d\u7684\u8fde\u63a5\u8c03\u5ea6\u7b97\u6cd5\u7684\u5b9e\u73b0\u539f\u7406\uff0c\u7136\u540e\u6839\u636e\u5177\u4f53\u7684\u4e1a\u52a1\u9700\u6c42\u5408\u7406\u7684\u9009\u578b\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"ve4zj\">5\u3001LVS\u7684\u5b89\u88c5\u4e0e\u4f7f\u7528<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u07aeaf39\">IPVS\u7684\u5b98\u65b9\u7f51\u7ad9\u4e3a<a href=\"http:\/\/www.linuxvirtualserver.org\/software\/ipvs.html,\" target=\"_blank\" rel=\"noreferrer noopener\">http:\/\/www.linuxvirtualserver.org\/software\/ipvs.html,<\/a>\u63d0\u4f9b\u7684\u8f6f\u4ef6\u5305\u6709\u6e90\u7801\u65b9\u5f0f\u7684\u4e5f\u6709rpm\u65b9\u5f0f\u7684\uff0c\u8fd9\u91cc\u4ecb\u7ecd\u901a\u8fc7yum\u65b9\u5f0f\u5b89\u88c5IPVS<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u1bbe95f6\">\u56e0\u6b64\uff0c\u5728\u670d\u52a1\u5668\u4e0a\u76f4\u63a5\u6267\u884c\u5982\u4e0b\u64cd\u4f5c\u8fdb\u884c\u5b89\u88c5:<\/p>\n\n\n\n<pre id=\"pONBU\" class=\"wp-block-code\"><code>&#91;root@localhost ~]#yum -y install ipvsadm\n&#91;root @localhost ~]# ipvsadm -help<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u359cd6e6\">\u5982\u679c\u770b\u5230\u5e2e\u52a9\u63d0\u793a\uff0c\u8868\u660eIPVS\u5df2\u7ecf\u6210\u529f\u5b89\u88c5\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"vyGRP\">6\u3001\u901a\u8fc7Keepalived\u642d\u5efaLVS\u9ad8\u53ef\u7528\u6027\u96c6\u7fa4\u7cfb\u7edf<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"tbBaE\">a. \u5b9e\u4f8b\u73af\u5883\u4ecb\u7ecd<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ud3be4401\">LVS\u96c6\u7fa4\u6709DR\u3001TUN\u3001NAT\u4e09\u79cd\u914d\u7f6e\u6a21\u5f0f\uff0c\u53ef\u4ee5\u5bf9WWW\u670d\u52a1\u3001FTP\u670d\u52a1\u3001MAIL\u670d\u52a1\u7b49\u8fdb\u884c\u8d1f\u8f7d\u5747\u8861\u3002\u4e0b\u9762\u901a\u8fc73\u4e2a\u5b9e\u4f8b\u8be6\u7ec6\u8bb2\u8ff0\u5982\u4f55\u642d\u5efaWWW\u670d\u52a1\u7684\u9ad8\u53ef\u7528LVS\u96c6\u7fa4\u7cfb\u7edf\uff0c\u4ee5\u53ca\u57fa\u4e8eDR\u6a21\u5f0f\u7684LVS\u96c6\u7fa4\u914d\u7f6e\u3002\u5728\u8fdb\u884c\u5b9e\u4f8b\u4ecb\u7ecd\u4e4b\u524d\u8fdb\u884c\u7ea6\u5b9a:\u64cd\u4f5c\u7cfb\u7edf\u91c7\u7528Centos7.5\uff0c\u5730\u5740\u89c4\u5212\u5982\u4e0b\u8868\u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-26-1024x332.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"332\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-26-1024x332.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-97\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ud3be4401\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ub75bb57d\">HA \u5b9e\u73b0LVS\u7684\u9ad8\u53ef\u7528\uff0c1 2 \u63d0\u4f9b\u5904\u7406\u4fe1\u606f\u3002\u5fc5\u987b\u8bbf\u95eevip\u624d\u80fd\u8fdb\u884c\u8d1f\u8f7d\u5747\u8861\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-27-1024x518.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"518\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-27-1024x518.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-98\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ub75bb57d\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u4feab2f5\">\u5171\u4eab\u6570\u636e\u4f7f\u7528\u5171\u4eab\u7684\u5b58\u50a8\u9635\u5217\uff0c\u4e00\u822c\u662fNFS<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"z50s3\">b. \u5b9e\u4f8b\u73af\u5883\u7684\u914d\u7f6e<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u58e81090\">Keepalived\u7684\u914d\u7f6e\u975e\u5e38\u7b80\u5355,\u4ec5\u9700\u8981\u4e00\u4e2a\u914d\u7f6e\u6587\u4ef6\u5373\u53ef\u5b8c\u6210\u5bf9HA cluster\u548cLVS\u670d\u52a1\u8282\u70b9\u76d1\u63a7\u3002Keepalived\u7684\u5b89\u88c5\u5df2\u7ecf\u5728\u524d\u9762\u4ecb\u7ecd\u8fc7\uff0c\u5728\u901a\u8fc7Keepalived\u642d\u5efa\u9ad8\u53ef\u7528\u7684LVS\u96c6\u7fa4\u5b9e\u4f8b\u4e2d\uff0c\u4e3b\u3001\u5907Director Server\u90fd\u9700\u8981\u5b89\u88c5Keepalived\u8f6f\u4ef6\uff0c\u5b89\u88c5\u6210\u529f\u540e\uff0c\u9ed8\u8ba4\u7684\u914d\u7f6e\u6587\u4ef6\u8def\u5f84\u4e3a<strong>\/etc\/Keepalived\/Keepalived.conf<\/strong>\u3002\u4e00\u4e2a\u5b8c\u6574\u7684keepalived\u914d\u7f6e\u6587\u4ef6\u7531\u4e09\u4e2a\u90e8\u5206\u7ec4\u6210\uff0c\u5206\u522b\u662f\u5168\u5c40\u5b9a\u4e49\u90e8\u5206\u3001vrrp\u5b9e\u4f8b\u5b9a\u4e49\u90e8\u5206\u4ee5\u53ca\u865a\u62df\u670d\u52a1\u5668\u5b9a\u4e49\u90e8\u5206\uff0c\u4e0b\u9762\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e2a\u914d\u7f6e\u6587\u4ef6\u4e2d\u6bcf\u4e2a\u9009\u9879\u7684\u8be6\u7ec6\u542b\u4e49\u548c\u7528\u6cd5\u3002<\/p>\n\n\n\n<pre id=\"t5SOX\" class=\"wp-block-code\"><code>! Configuration File for keepalived\n#\u5168\u5c40\u5b9a\u4e49\u90e8\u5206\nglobal_defs {\nnotification_email {\n  dba.gao@gmail.com # \u8bbe\u7f6e\u62a5\u8b66\u90ae\u4ef6\u5730\u5740\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u591a\u4e2a\uff0c\n          # \u6bcf\u884c\u4e00\u4e2a\u3002\u6ce8\u610f\uff0c\u5982\u679c\u8981\u5f00\u542f\u90ae\u4ef6\u62a5\u8b66,# \u9700\u8981\u5f00\u542f\u672c\u673a\u7684Sendmail\u670d\u52a1\n  ixdba@163.com\n}\n  notification_email_from Keepalived@localhost # \u8bbe\u7f6e\u90ae\u4ef6\u7684\u53d1\u9001\u5730\u5740\n  smtp_server 192.168.200.1 # \u8bbe\u7f6esmtp server\u5730\u5740\n  smtp_connect_timeout 30 # \u8bbe\u7f6e\u8fde\u63a5smtp server\u7684\u8d85\u65f6\u65f6\u95f4\n  router_id LVS_DEVEL # \u8868\u793a\u8fd0\u884cKeepalived\u670d\u52a1\u5668\u7684\u4e00\u4e2a\n  # \u6807\u8bc6\u3002\u53d1\u90ae\u4ef6\u65f6\u663e\u793a\u5728\u90ae\u4ef6\u4e3b\u9898\u4e2d\u7684\u4fe1\u606f\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u9c249602\">\u5b9e\u73b0\u9ad8\u53ef\u7528\u7684\u65b9\u5f0f:<\/p>\n\n\n\n<pre id=\"xTn5Q\" class=\"wp-block-code\"><code>#vrrp\u5b9e\u4f8b\u5b9a\u4e49\u90e8\u5206\nvrrp_instance VI_1 {\n  state MASTER # \u6307\u5b9aKeepalived\u7684\u89d2\u8272\uff0cMASTER\u8868\u793a\n# \u6b64\u4e3b\u673a\u662f\u4e3b\u670d\u52a1\u5668\uff0cBACKUP\u8868\u793a\n  interface eth0 # \u6307\u5b9aHA\u76d1\u6d4b\u7f51\u7edc\u7684\u63a5\u53e3virtual_router_id 51 # \u865a\u62df\u8def\u7531\u6807\u8bc6\uff0c\u8fd9\u4e2a\u6807\u8bc6\u662f\u4e00\u4e2a\u6570\u5b57\uff0c\n# \u540c\u4e00\u4e2avrrp\u5b9e\u4f8b\u4f7f\u7528\u552f\u4e00\u7684\u6807\u8bc6\uff0c\n# \u5373\u540c\u4e00\u4e2avrrp_instance\u4e0b\uff0cMASTER\u548c\n# BACKUP\u5fc5\u987b\u662f\u4e00\u81f4\u7684\n  priority 100# \u5b9a\u4e49\u4f18\u5148\u7ea7\uff0c\u6570\u5b57\u8d8a\u5927\uff0c\u4f18\u5148\u7ea7\u8d8a\u9ad8\u3002\n# \u5728\u4e00\u4e2avrrp_instance\u4e0b\uff0cMASTER\u7684\n# \u4f18\u5148\u7ea7\u5fc5\u987b\u5927\u4e8eBACKUP\u7684\u4f18\u5148\u7ea7\n  advert_int 1 # \u8bbe\u5b9aMASTER\u4e0eBACKUP\u8d1f\u8f7d\u5747\u8861\u5668\u4e4b\n# \u95f4\u540c\u6b65\u68c0\u67e5\u7684\u65f6\u95f4\u95f4\u9694\uff0c\u5355\u4f4d\u662f\u79d2\n  authentication { # \u8bbe\u5b9a\u9a8c\u8bc1\u7c7b\u578b\u548c\u5bc6\u7801\n  auth_type PASS # \u8bbe\u7f6e\u9a8c\u8bc1\u7c7b\u578b\uff0c\u4e3b\u8981\u6709PASS\u548cAH\u4e24\u79cd\n  auth_pass 1111 # \u8bbe\u7f6e\u9a8c\u8bc1\u5bc6\u7801\uff0c\u5728\u4e00\u4e2avrrp_instance\u4e0b\uff0c\n# MASTER\u4e0eBACKUP\u5fc5\u987b\u4f7f\u7528\u76f8\u540c\u7684\u5bc6\u7801\n# \u624d\u80fd\u6b63\u5e38\u901a\u4fe1\n}\nvirtual_ipaddress { # \u8bbe\u7f6e\u865a\u62dfIP\u5730\u5740\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u591a\u4e2a\u865a\u62dfIP\u5730\u5740\uff0c\u6bcf\u884c\u4e00\u4e2a\u3002\n  172.16.213.6\n}\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uf99d9a04\">\u914d\u7f6e\u8d1f\u8f7d\u5747\u8861\u90e8\u5206<\/p>\n\n\n\n<pre id=\"R20PB\" class=\"wp-block-code\"><code>#\u865a\u62df\u670d\u52a1\u5668\u5b9a\u4e49\u90e8\u5206\nvirtual_server 172.16.213.6 80 { # \u8bbe\u7f6e\u865a\u62df\u670d\u52a1\u5668, \u9700\u8981\u6307\u5b9a\u865a\u62dfIP\u5730\u5740\u548c\u670d\u52a1\n delay_loop 6lb_algo rr\n lb_kind DR # \u8bbe\u7f6eLVS\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u7684\u673a\u5236, \u6709NAT\u3001TUN\n persistence_timeout 50# \u4f1a\u8bdd\u4fdd\u6301\u65f6\u95f4, \u5355\u4f4d\u662f\u79d2\u3002\u8fd9\u4e2a\u9009\u9879\u5bf9\u52a8\u6001\u7f51\u9875\u662f\u975e\u5e38\u6709\u7528\u7684, \u4e3a\u96c6\u7fa4\u7cfb\u7edf\u4e2d\u7684session\u5171\u4eab\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5f88\u597d\u7684\u89e3\u51b3\u65b9\u6848\u3002\u6709\u4e86\u8fd9\u4e2a\u4f1a\u8bdd\u4fdd\u6301\u529f\u80fd, \u7528\u6237\u7684\u8bf7\u6c42\u4f1a\u88ab\u4e00\u76f4\u5206\u53d1\u5230\u67d0\u4e2a\u670d\u52a1\u8282\u70b9, \u76f4\u5230\u8d85\u8fc7\u8fd9\u4e2a\u4f1a\u8bdd\u7684\u4fdd\u6301\u65f6\u95f4\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f, \u8fd9\u4e2a\u4f1a\u8bdd\u4fdd\u6301\u65f6\u95f4\u662f\u6700\u5927\u65e0\u54cd\u5e94\u8d85\u65f6\u65f6\u95f4, \u4e5f\u5c31\u662f\u8bf4, \u7528\u6237\u5728\u64cd\u4f5c\u52a8\u6001\u9875\u9762\u65f6, \u5982\u679c\u572850\u79d2\u5185\u6ca1\u6709\u6267\u884c\u4efb\u4f55\u64cd\u4f5c, \u90a3\u4e48\u63a5\u4e0b\u6765\u7684\u64cd\u4f5c\u4f1a\u88ab\u5206\u53d1\u5230\u53e6\u5916\u8282\u70b9, \u4f46\u662f\u5982\u679c\u7528\u6237\u4e00\u76f4\u5728\u64cd\u4f5c\u52a8\u6001\u9875\u9762, \u5219\u4e0d\u53d750\u79d2\u7684\u65f6\u95f4\u9650\u5236\u3002\n protocol TCP # \u6307\u5b9a\u8f6c\u53d1\u534f\u8bae\u7c7b\u578b, \u6709TCP\u548cUDP\u4e24\u79cd\n real_server 172.16.213.235 80 { # \u914d\u7f6e\u670d\u52a1\u8282\u70b91, \u9700\u8981\u6307\u5b9areal server\u7684\u771f\u5b9eIP\u5730\u5740\u548c\u7aef\u53e3, IP\u4e0e\u7aef\u53e3\u4e4b\u95f4\u7528\u7a7a\u683c\u9694\u5f00\n weight 3 # \u914d\u7f6e\u670d\u52a1\u8282\u70b9\u7684\u6743\u503c, \u6743\u503c\u5927\u5c0f\u7528\u6570\u5b57\u8868\u793a, \u6570\u5b57\u8d8a\u5927, \u6743\u503c\u8d8a\u9ad8, \u8bbe\u7f6e\u6743\u503c\u7684\u5927\u5c0f\u53ef\u4ee5\u4e3a\u4e0d\u540c\u6027\u80fd\u7684\u670d\u52a1\u5668\u5206\u914d\u4e0d\u540c\u7684\u8d1f\u8f7d, \u53ef\u4ee5\u4e3a\u6027\u80fd\u9ad8\u7684\u670d\u52a1\u5668\u8bbe\u7f6e\u8f83\u9ad8\u7684\u6743\u503c, \u800c\u4e3a\u6027\u80fd\u8f83\u4f4e\u7684\u670d\u52a1\u5668\u8bbe\u7f6e\u76f8\u5bf9\u8f83\u4f4e\u7684\u6743\u503c, \u8fd9\u6837\u624d\u80fd\u5408\u7406\u5730\u5229\u7528\u548c\u5206\u914d\u4e86\u7cfb\u7edf\u8d44\u6e90\nTCP_CHECK {\n connect_timeout 3 # \u8868\u793a3\u79d2\u65e0\u54cd\u5e94\u8d85\u65f6\n retry 3 # \u8868\u793a\u91cd\u8bd5\u6b21\u6570\n delay_before_retry 3 # \u8868\u793a\u91cd\u8bd5\u95f4\u9694\n  }\n}\nreal_server 172.16.213.238 80 { # \u914d\u7f6e\u670d\u52a1\u8282\u70b92\n weight 1\nTCP_CHECK {\n connect_timeout3\n retry 3\n delay_before_retry 3\n    }\n  }\n}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u7f5b3dfa\"><strong>\u914d\u7f6e\u5907\u7528\u8282\u70b9<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ub1938cd3\">\u5728\u914d\u7f6eKeepalived.conf\u65f6, \u9700\u8981\u7279\u522b\u6ce8\u610f\u914d\u7f6e\u6587\u4ef6\u7684\u8bed\u6cd5\u683c\u5f0f, \u56e0\u4e3aKeepalived\u5728\u542f\u52a8\u65f6\u5e76\u4e0d\u68c0\u6d4b\u914d\u7f6e\u6587\u4ef6\u7684\u6b63\u786e\u6027, \u5373\u4f7f\u6ca1\u6709\u914d\u7f6e\u6587\u4ef6, Keepalived\u4e5f\u7167\u6837\u80fd\u591f\u542f\u52a8, \u6240\u4ee5\u4e00\u5b9a\u8981\u4fdd\u8bc1\u914d\u7f6e\u6587\u4ef6\u6b63\u786e\u3002\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b, Keepalived\u5728\u542f\u52a8\u65f6\u4f1a\u67e5\u627e\/etc\/Keepalived\/Keepalived.conf\u914d\u7f6e\u6587\u4ef6, \u5982\u679c\u914d\u7f6e\u6587\u4ef6\u653e\u5728\u4e86\u5176\u4ed6\u8def\u5f84\u4e0b, \u53ef\u4ee5\u901a\u8fc7 \u201cKeepalived -f\u201d \u53c2\u6570\u6307\u5b9a\u914d\u7f6e\u6587\u4ef6\u7684\u8def\u5f84\u5373\u53ef\u3002Keepalived.conf\u914d\u7f6e\u5b8c\u6bd5\u540e, \u5c06\u6b64\u6587\u4ef6\u590d\u5236\u5230\u5907\u7528Director Server\u5bf9\u5e94\u7684\u8def\u5f84\u4e0b, \u7136\u540e\u8fdb\u884c\u4e24\u4e2a\u7b80\u5355\u7684\u4fee\u6539\u5373\u53ef\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"udde9b2c6\">\u5c06\u201cstate MASTER\u201d\u66f4\u6539\u4e3a\u201cstate BACKUP\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uce416647\">\u5c06priority 100\u66f4\u6539\u4e3a\u4e00\u4e2a\u8f83\u5c0f\u7684\u503c, \u8fd9\u91cc\u6539\u4e3a\u201cpriority 80\u201d<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"Dds91\">c. \u914d\u7f6eReal server\u8282\u70b9<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u9c2f1ac4\">\u5728lvs\u7684DR\u548cTun\u6a21\u5f0f\u4e0b, \u7528\u6237\u7684\u8bbf\u95ee\u8bf7\u6c42\u5230\u8fbe\u771f\u5b9e\u670d\u52a1\u5668\u540e, \u662f\u76f4\u63a5\u8fd4\u56de\u7ed9\u7528\u6237\u7684, \u800c\u4e0d\u518d\u7ecf\u8fc7\u524d\u7aef\u7684Director Server, \u56e0\u6b64, \u5c31\u9700\u8981\u5728\u6bcf\u4e2aReal server\u8282\u70b9\u4e0a\u589e\u52a0\u865a\u62df\u7684VIP\u5730\u5740, \u8fd9\u6837\u6570\u636e\u624d\u80fd\u76f4\u63a5\u8fd4\u56de\u7ed9\u7528\u6237, \u589e\u52a0VIP\u5730\u5740\u7684\u64cd\u4f5c\u53ef\u4ee5\u901a\u8fc7\u521b\u5efa\u811a\u672c\u7684\u65b9\u5f0f\u6765\u5b9e\u73b0,\u521b\u5efa\u6587\u4ef6 \/etc\/init.d\/lvrsr, \u811a\u672c\u5185\u5bb9\u5982\u4e0b:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u21da3224\">\u8fd4\u56de\u6570\u636e\u76f4\u63a5\u7ed9\u7528\u6237<\/p>\n\n\n\n<pre id=\"vcF8e\" class=\"wp-block-code\"><code>#!\/bin\/bash\nVIP=172.16.213.6\n\/sbin\/ifconfig lo:0 $VIP broadcast $VIP netmask 255.255.255.255 up\necho \"1\" &gt; \/proc\/sys\/net\/ipv4\/conf\/lo\/arp_ignore\necho \"2\" &gt; \/proc\/sys\/net\/ipv4\/conf\/lo\/arp_announce\necho \"1\" &gt; \/proc\/sys\/net\/ipv4\/conf\/all\/arp_ignore\necho\t\"2\" &gt; \/proc\/sys\/net\/ipv4\/conf\/all\/arp_announce\nsysctl -p\n#end<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u4f225b75\">\u6b64\u64cd\u4f5c\u662f\u5728\u56de\u73af\u8bbe\u5907\u4e0a\u7ed1\u5b9a\u4e86\u4e00\u4e2a\u865a\u62dfIP\u5730\u5740, \u5e76\u8bbe\u5b9a\u5176\u5b50\u7f51\u63a9\u7801\u4e3a255.255.255.255, \u4e0eDirector Server\u4e0a\u7684\u865a\u62dfIP\u4fdd\u6301\u4e92\u901a, \u7136\u540e\u7981\u6b62\u4e86\u672c\u673a\u7684ARP\u8bf7\u6c42\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"kOPAS\">7\u3001\u9a8c\u8bc1\u9ad8\u53ef\u7528LVS\u8d1f\u8f7d\u5747\u8861\u96c6\u7fa4\u7cfb\u7edf<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"iUEbI\">a. \u9ad8\u53ef\u7528\u8d1f\u8f7d\u5747\u8861\u96c6\u7fa4 DR<\/h5>\n\n\n\n<pre id=\"M42SV\" class=\"wp-block-code\"><code>172.16.213.234(\u4e3b)\n172.16.213.239(\u5907\u7528)\n172.16.213.235(\u771f\u5b9e\u670d\u52a1\u56681)\n172.16.213.238(\u771f\u5b9e\u670d\u52a1\u56682)<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u9996\u5148\u542f\u52a8\u771f\u5b9e\u670d\u52a1\u56681\u548c2 \u7684httpd\u670d\u52a1<\/li>\n\n\n\n<li>\u914d\u7f6ekeepalived.conf\u6587\u4ef6<\/li>\n<\/ol>\n\n\n\n<pre id=\"o1vV7\" class=\"wp-block-code\"><code>! Configuration File for keepalived\n\n# \u5168\u5c40\u5b9a\u4e49\u90e8\u5206\nglobal_defs {\n    notification_email {\n        dba.gao@gmail.com    # \u62a5\u8b66\u90ae\u4ef6\u5730\u5740\uff0c\u53ef\u914d\u7f6e\u591a\u4e2a\n        ixdba@163.com\n    }\n    notification_email_from Keepalived@localhost  # \u90ae\u4ef6\u53d1\u4ef6\u4eba\n    smtp_server 192.168.200.1                     # SMTP \u670d\u52a1\u5668\u5730\u5740\n    smtp_connect_timeout 30                       # SMTP \u8fde\u63a5\u8d85\u65f6\u65f6\u95f4\n    router_id LVS_DEVEL                           # \u8282\u70b9\u552f\u4e00\u6807\u8bc6\uff08\u90ae\u4ef6\u4e3b\u9898\u663e\u793a\uff09\n}\n\n# VRRP \u5b9e\u4f8b\u5b9a\u4e49\nvrrp_instance VI_1 {\n    state MASTER           # \u8282\u70b9\u89d2\u8272\uff1aMASTER \/ BACKUP\n    interface eth0         # \u7ed1\u5b9a\u7f51\u5361\uff08\u6839\u636e\u5b9e\u9645\u73af\u5883\u4fee\u6539\uff09\n    virtual_router_id 51   # \u540c\u4e00\u96c6\u7fa4\u5fc5\u987b\u4e00\u81f4\n    priority 100           # \u4f18\u5148\u7ea7\uff0c\u4e3b\u8282\u70b9 &gt; \u5907\u8282\u70b9\n    advert_int 1           # \u5fc3\u8df3\u68c0\u67e5\u95f4\u9694\uff08\u79d2\uff09\n\n    # \u8ba4\u8bc1\u914d\u7f6e\n    authentication {\n        auth_type PASS     # \u8ba4\u8bc1\u7c7b\u578b\n        auth_pass 1111     # \u96c6\u7fa4\u5bc6\u7801\uff0c\u4e3b\u5907\u5fc5\u987b\u4e00\u81f4\n    }\n\n    # \u865a\u62df IP\n    virtual_ipaddress {\n        172.16.213.6\n    }\n}\n\n# \u865a\u62df\u670d\u52a1\u5668\u914d\u7f6e\uff08LVS + \u5065\u5eb7\u68c0\u67e5\uff09\nvirtual_server 172.16.213.6 80 {\n    delay_loop 6           # \u540e\u7aef\u8282\u70b9\u5065\u5eb7\u68c0\u67e5\u95f4\u9694\n    lb_algo rr             # \u8d1f\u8f7d\u5747\u8861\u7b97\u6cd5\uff1arr=\u8f6e\u8be2\n    lb_kind DR             # LVS \u6a21\u5f0f\uff1aDR\/NAT\/TUN\n    persistence_timeout 50 # \u4f1a\u8bdd\u4fdd\u6301\u65f6\u95f4\uff08\u79d2\uff09\n    protocol TCP           # \u8f6c\u53d1\u534f\u8bae\n\n    # \u771f\u5b9e\u540e\u7aef\u670d\u52a1\u5668 1\n    real_server 172.16.213.235 80 {\n        weight 3           # \u8282\u70b9\u6743\u91cd\n        TCP_CHECK {\n            connect_timeout 3    # \u8fde\u63a5\u8d85\u65f6\n            retry 3             # \u91cd\u8bd5\u6b21\u6570\n            delay_before_retry 3 # \u91cd\u8bd5\u95f4\u9694\n        }\n    }\n\n    # \u771f\u5b9e\u540e\u7aef\u670d\u52a1\u5668 2\n    real_server 172.16.213.238 80 {\n        weight 1\n        TCP_CHECK {\n            connect_timeout 3\n            retry 3\n            delay_before_retry 3\n        }\n    }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u038e600d\">\u5907\u7528\u8282\u70b9BACKUP\u548c\u6743\u91cd\u4fee\u6539\u5373\u53ef<\/p>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>\u542f\u52a8\u670d\u52a1 systemctl start keepalived<\/li>\n\n\n\n<li>\u67e5\u770b\u76ee\u524d\u7684\u8fde\u63a5\u72b6\u6001 ipvsadm -L -n<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-28.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"218\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-28.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-99\"  sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/><\/div><\/figure>\n\n\n\n<ol start=\"5\" class=\"wp-block-list\">\n<li>\u5427vip\u4fe1\u606f\u7ed1\u5b9a\u5728\u670d\u52a1\u5668\u4e0a\u8fd4\u56de\u6570\u636e<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-29.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"597\" height=\"42\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-29.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-100\"  sizes=\"auto, (max-width: 597px) 100vw, 597px\" \/><\/div><\/figure>\n\n\n\n<pre id=\"vUD9c\" class=\"wp-block-code\"><code>#!\/bin\/bash\n# LVS-DR \u6a21\u5f0f RealServer ARP \u6291\u5236\u811a\u672c\n\nVIP=172.16.213.6\n\n# \u7ed1\u5b9a VIP \u5230\u672c\u5730\u56de\u73af\u7f51\u5361\n\/sbin\/ifconfig lo:0 $VIP broadcast $VIP netmask 255.255.255.255 up\n\n# ARP \u6291\u5236\u6838\u5fc3\u53c2\u6570\necho \"1\" &gt; \/proc\/sys\/net\/ipv4\/conf\/lo\/arp_ignore\necho \"2\" &gt; \/proc\/sys\/net\/ipv4\/conf\/lo\/arp_announce\necho \"1\" &gt; \/proc\/sys\/net\/ipv4\/conf\/all\/arp_ignore\necho \"2\" &gt; \/proc\/sys\/net\/ipv4\/conf\/all\/arp_announce\n\n# \u751f\u6548\u5185\u6838\u53c2\u6570\nsysctl -p<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-30.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"651\" height=\"51\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-30.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-101\"  sizes=\"auto, (max-width: 651px) 100vw, 651px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-31.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"33\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-31.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-102\"  sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/div><\/figure>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"eVLLV\">b. \u9ad8\u53ef\u7528\u8d1f\u8f7d\u5747\u8861\u96c6\u7fa4\u8fc7\u7a0b<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ub429ee03\">\u5728\u8282\u70b9\u5173\u95ed\u670d\u52a1,\u4e09\u6b21\u5c1d\u8bd5\u91cd\u8fde,\u7136\u540e\u79fb\u9664\u670d\u52a1,\u53d1\u9001\u90ae\u4ef6<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-32.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"270\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-32.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-103\"  sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u4ea70f1e\">ipvsadm -L -n \u67e5\u770b\u670d\u52a1,\u4e00\u4e2a\u8282\u70b9<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-33.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"993\" height=\"192\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-33.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-104\"  sizes=\"auto, (max-width: 993px) 100vw, 993px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u1e315aef\">\u6062\u590d\u670d\u52a1\u4e4b\u540e,\u6dfb\u52a0\u8282\u70b9,\u53d1\u9001\u90ae\u4ef6<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-34-1024x79.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"79\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-34-1024x79.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-105\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-35.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"975\" height=\"212\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-35.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-106\"  sizes=\"auto, (max-width: 975px) 100vw, 975px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ubafe14be\">\u5f00\u542f\u4f1a\u8bdd\u4fdd\u6301,\u5f53\u91cd\u65b0\u5f00\u542f\u670d\u52a1,\u8fd8\u662f\u539f\u6765\u7684\u670d\u52a1<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"rrFMy\">8\u3001LVS\u4f7f\u7528\u9700\u8981\u6ce8\u610f\u7684\u95ee\u9898\u4ee5\u53ca\u5e38\u7528\u96c6\u7fa4\u7f51\u7edc\u67b6\u6784<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"rsuXM\">a. LVS\u4f7f\u7528\u9700\u8981\u6ce8\u610f\u7684\u95ee\u9898<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ub0633cc3\">1\u3001\u7f51\u7edc\u65b9\u9762\uff0c\u63a8\u8350\u5173\u95edselinux<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u53f901b9\">2\u3001\u63a8\u8350lvs+keepalived\u7ec4\u5408<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ub41bd7d7\">3\u3001dr\u6a21\u5f0f<strong>\u9700\u8981realserver\u7ed1\u5b9avip\u5730\u5740<\/strong><\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"Ioo6N\">b. LVS\u7ecf\u5e38\u4f7f\u7528\u7684\u96c6\u7fa4\u7f51\u7edc\u67b6\u6784<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u3e228933\">1\u3001\u5185\u7f51\u96c6\u7fa4\uff0c\u5916\u7f51\u6620\u5c04VIP<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-36.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"837\" height=\"557\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-36.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-107\"  sizes=\"auto, (max-width: 837px) 100vw, 837px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u4143e56c\">2\u3001\u5168\u5916\u7f51LVS\u96c6\u7fa4(DR)\u6a21\u5f0f<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-37-1024x520.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"520\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-37-1024x520.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-108\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"BXwsD\">\u516b\u3001Keepalived+LVS\u6784\u5efaNAT\u6a21\u5f0f\u96c6\u7fa4\u7cfb\u7edf<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"CWTQr\">1\u3001\u5b9e\u4f8b\u73af\u5883\u4ecb\u7ecd<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u56c97a13\">\u4e0b\u9762\u901a\u8fc71\u4e2a\u5b9e\u4f8b\u8be6\u7ec6\u8bb2\u8ff0\u5982\u4f55\u642d\u5efaWWW\u670d\u52a1\u7684\u9ad8\u53ef\u7528LVS\u96c6\u7fa4\u7cfb\u7edf\uff0c\u4ee5\u53ca\u57fa\u4e8eNAT\u6a21\u5f0f\u7684LVS\u96c6\u7fa4\u914d\u7f6e\u3002\u5728\u8fdb\u884c\u5b9e\u4f8b\u4ecb\u7ecd\u4e4b\u524d\u8fdb\u884c\u7ea6\u5b9a:\u64cd\u4f5c\u7cfb\u7edf\u91c7\u7528Centos7.5\uff0c\u5730\u5740\u89c4\u5212\u5982\u4e0b\u8868\u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-38-1024x359.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"359\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-38-1024x359.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-109\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ue32c3e15\">\u8bf7\u6c42\u7ed9\u670d\u52a1\u5668\u540e\u8fd4\u56de\u7ed9\u4e3b\u670d\u52a1\u5668\uff0c\u63d0\u4f9b\u5185\u7f51\u8fdb\u884c\u8f6c\u53d1\u6570\u636e\u3002\u53ea\u9700\u8981\u7ed1\u5b9a\u7f51\u5173\u5c31\u53ef\u4ee5\u8fdb\u884c\u8fd4\u56de\u6570\u636e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ub290140d\">\u57fa\u4e8eNAT\u6a21\u5f0f\u7684\u6574\u4e2a\u9ad8\u53ef\u7528LVS\u96c6\u7fa4\u7cfb\u7edf\u7684\u62d3\u6251\u7ed3\u6784\u5982\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-39-1024x663.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"663\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-39-1024x663.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-110\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u9ff0af74\">\u914d\u7f6e\u6587\u4ef6<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u2da4ad65\">\u76d1\u63a7\u7f51\u5361\u6362\u6210\u5916\u7f51\u7f51\u5361\uff0c\u5b9a\u4e49vip\uff0c\u5b9a\u4e49\u7b2c\u4e8c\u4e2a\u7f51\u5361\u7ed1\u5b9a\u5185\u7f51\uff0crouterid\u4e5f\u4e0d\u4e00\u6837<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ue0b1207d\">\u5fc5\u987b\u5f00\u542f\u6570\u636e\u8f6c\u53d1\u529f\u80fd<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-40.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"825\" height=\"426\" data-original=\"http:\/\/43.136.56.131\/wp-content\/uploads\/2026\/04\/image-40.png\" 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