{"id":9252,"date":"2024-03-28T17:28:27","date_gmt":"2024-03-28T09:28:27","guid":{"rendered":"https:\/\/egonlin.com\/?p=9252"},"modified":"2024-05-23T22:47:56","modified_gmt":"2024-05-23T14:47:56","slug":"%e5%9b%9b%e3%80%81lvs%e5%9b%9b%e5%b1%82%e8%b4%9f%e8%bd%bd%e5%9d%87%e8%a1%a1","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=9252","title":{"rendered":"\u56db\u3001LVS\u56db\u5c42\u8d1f\u8f7d\u5747\u8861"},"content":{"rendered":"<h1>\u4e00\u3001lvs\u4ecb\u7ecd<\/h1>\n<p>LVS\uff0c\u662fLinux Virtual Server\u7684\u7b80\u79f0\uff0c\u4e5f\u5c31\u662fLinux\u865a\u62df\u670d\u52a1\u5668,<br \/>\n\u662f\u4e00\u4e2a\u7531\u56fd\u4eba\u7ae0\u6587\u5d69\u535a\u58eb\u53d1\u8d77\u7684\u81ea\u7531\u8f6f\u4ef6\u9879\u76ee\u3002<br \/>\n\u4e2d\u6587\u7ad9\u70b9\uff1a<a href=\"http:\/\/zh.linuxvirtualserver.org\/\">http:\/\/zh.linuxvirtualserver.org\/<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>LVS\u6709\u5f88\u591a\u6a21\u5f0f\uff0c\u6211\u4eec\u4e3b\u8981\u7528DR\u6a21\u5f0f\uff0c\u6765\u505a\u56db\u5c42\u8d1f\u8f7d\u5747\u8861\uff0c\u53ef\u4ee5\u7528\u4f5c\u56db\u5c42\u4ee3\u7406\u6570\u636e\u5e93\uff0c\u4e5f\u53ef\u4ee5\u7528\u4f5c\u56db\u5c42\u4ee3\u7406\u4e03\u5c42\u8d1f\u8f7d\u5747\u8861<\/p>\n<p>\u7b80\u8ff0\uff1a\u786c\u4ef6\u8d1f\u8f7d\u5747\u8861\uff08F5\u3001Array\uff09\u3001LVS\u3001Haproxy\u3001NGINX\u7684\u533a\u522b<\/p>\n<pre class=\"code\">nginx\uff1a\u80dc\u5728\u529f\u80fd\u591a\uff0c\u6027\u80fd\u8fd8\u591f\u7528\uff0c\u914d\u7f6e\u7b80\u5355\r\n\r\nhaproxy\uff1a\u6027\u80fd\u6bd4nginx\u5f3a\u4e00\u70b9\uff0c\u53ef\u4ee5haproxy\u505a\u56db\u5c42--------\u300bnginx\u4e03\u5c42----\u300b\u4ee3\u7406web\u670d\u52a1\u5668\r\n\r\nlvs\u6027\u80fd\u582a\u6bd4\u786c\u4ef6\u8d1f\u8f7d\u5747\u8861\uff0c\u53ef\u4ee5\u7528\u6765\u56db\u5c42\u4ee3\u7406\u6570\u636e\u5e93\uff0c\u6216\u8005\u56db\u5c42\u4ee3\u7406\u4e03\u5c42\u8d1f\u8f7d\u5747\u8861\r\n\r\n\u786c\u4ef6\u8d1f\u8f7d\u5747\u8861\uff0c\u56e2\u961f\u80fd\u529b\u4e0d\u8db3\uff0c\u82b1\u94b1\u641e\u5b9a\uff0c\u56e2\u961f\u80fd\u529b\u4e0a\u6765\u4e86\u8fd8\u662flvs\u66f4\u7701\u4e00\u4e9b<\/pre>\n<div  class='collapse-block shadow-sm collapse-block-transparent collapsed hide-border-left'><div class='collapse-block-title'><span class='collapse-block-title-inner'>\u8be6\u89e3\uff1aF5\u3001LVS\u3001Haproxy\u3001NGINX\u533a\u522b<\/span><i class='collapse-icon fa fa-angle-down'><\/i><\/div><div class='collapse-block-body' style='display:none;'><\/p>\n<p><span style=\"font-size: 24px;\"><strong>Nginx\u7684\u4f18\u70b9\u662f\uff1a<\/strong><\/span><\/p>\n<ol>\n<li>\u5de5\u4f5c\u5728\u7f51\u7edc\u76847\u5c42\u4e4b\u4e0a\uff0c\u53ef\u4ee5\u9488\u5bf9http\u5e94\u7528\u505a\u4e00\u4e9b\u5206\u6d41\u7684\u7b56\u7565\uff0c\u6bd4\u5982\u9488\u5bf9\u57df\u540d\u3001\u76ee\u5f55\u7ed3\u6784\uff0c\u5b83\u7684\u6b63\u5219\u89c4\u5219\u6bd4HAProxy\u66f4\u4e3a\u5f3a\u5927\u548c\u7075\u6d3b\uff0c\u8fd9\u4e5f\u662f\u5b83\u76ee\u524d\u5e7f\u6cdb\u6d41\u884c\u7684\u4e3b\u8981\u539f\u56e0\u4e4b\u4e00\uff0cNginx\u5355\u51ed\u8fd9\u70b9\u53ef\u5229\u7528\u7684\u573a\u5408\u5c31\u8fdc\u591a\u4e8eLVS\u4e86\u3002<\/li>\n<li>Nginx\u5bf9\u7f51\u7edc\u7a33\u5b9a\u6027\u7684\u4f9d\u8d56\u975e\u5e38\u5c0f\uff0c\u7406\u8bba\u4e0a\u80fdping\u901a\u5c31\u5c31\u80fd\u8fdb\u884c\u8d1f\u8f7d\u529f\u80fd\uff0c\u8fd9\u4e2a\u4e5f\u662f\u5b83\u7684\u4f18\u52bf\u4e4b\u4e00\uff1b\u76f8\u53cdLVS\u5bf9\u7f51\u7edc\u7a33\u5b9a\u6027\u4f9d\u8d56\u6bd4\u8f83\u5927\uff0c\u8fd9\u70b9\u672c\u4eba\u6df1\u6709\u4f53\u4f1a\uff1b<\/li>\n<li>Nginx\u5b89\u88c5\u548c\u914d\u7f6e\u6bd4\u8f83\u7b80\u5355\uff0c\u6d4b\u8bd5\u8d77\u6765\u6bd4\u8f83\u65b9\u4fbf\uff0c\u5b83\u57fa\u672c\u80fd\u628a\u9519\u8bef\u7528\u65e5\u5fd7\u6253\u5370\u51fa\u6765\u3002LVS\u7684\u914d\u7f6e\u3001\u6d4b\u8bd5\u5c31\u8981\u82b1\u6bd4\u8f83\u957f\u7684\u65f6\u95f4\u4e86\uff0cLVS\u5bf9\u7f51\u7edc\u4f9d\u8d56\u6bd4\u8f83\u5927\u3002<\/li>\n<li>\u53ef\u4ee5\u627f\u62c5\u9ad8\u8d1f\u8f7d\u538b\u529b\u4e14\u7a33\u5b9a\uff0c\u5728\u786c\u4ef6\u4e0d\u5dee\u7684\u60c5\u51b5\u4e0b\u4e00\u822c\u80fd\u652f\u6491\u51e0\u4e07\u6b21\u7684\u5e76\u53d1\u91cf\uff0c\u8d1f\u8f7d\u5ea6\u6bd4LVS\u76f8\u5bf9\u5c0f\u4e9b\u3002<\/li>\n<li>Nginx\u53ef\u4ee5\u901a\u8fc7\u7aef\u53e3\u68c0\u6d4b\u5230\u670d\u52a1\u5668\u5185\u90e8\u7684\u6545\u969c\uff0c\u6bd4\u5982\u6839\u636e\u670d\u52a1\u5668\u5904\u7406\u7f51\u9875\u8fd4\u56de\u7684\u72b6\u6001\u7801\u3001\u8d85\u65f6\u7b49\u7b49\uff0c\u5e76\u4e14\u4f1a\u628a\u8fd4\u56de\u9519\u8bef\u7684\u8bf7\u6c42\u91cd\u65b0\u63d0\u4ea4\u5230\u53e6\u4e00\u4e2a\u8282\u70b9\uff0c\u4e0d\u8fc7\u5176\u4e2d\u7f3a\u70b9\u5c31\u662f\u4e0d\u652f\u6301url\u6765\u68c0\u6d4b\u3002\u6bd4\u5982\u7528\u6237\u6b63\u5728\u4e0a\u4f20\u4e00\u4e2a\u6587\u4ef6\uff0c\u800c\u5904\u7406\u8be5\u4e0a\u4f20\u7684\u8282\u70b9\u521a\u597d\u5728\u4e0a\u4f20\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u6545\u969c\uff0cNginx\u4f1a\u628a\u4e0a\u4f20\u5207\u5230\u53e6\u4e00\u53f0\u670d\u52a1\u5668\u91cd\u65b0\u5904\u7406\uff0c\u800cLVS\u5c31\u76f4\u63a5\u65ad\u6389\u4e86\uff0c\u5982\u679c\u662f\u4e0a\u4f20\u4e00\u4e2a\u5f88\u5927\u7684\u6587\u4ef6\u6216\u8005\u5f88\u91cd\u8981\u7684\u6587\u4ef6\u7684\u8bdd\uff0c\u7528\u6237\u53ef\u80fd\u4f1a\u56e0\u6b64\u800c\u4e0d\u6ee1\u3002<\/li>\n<li>Nginx\u4e0d\u4ec5\u4ec5\u662f\u4e00\u6b3e\u4f18\u79c0\u7684\u8d1f\u8f7d\u5747\u8861\u5668\/\u53cd\u5411\u4ee3\u7406\u8f6f\u4ef6\uff0c\u5b83\u540c\u65f6\u4e5f\u662f\u529f\u80fd\u5f3a\u5927\u7684Web\u5e94\u7528\u670d\u52a1\u5668\u3002LNMP\u4e5f\u662f\u8fd1\u51e0\u5e74\u975e\u5e38\u6d41\u884c\u7684web\u67b6\u6784\uff0c\u5728\u9ad8\u6d41\u91cf\u7684\u73af\u5883\u4e2d\u7a33\u5b9a\u6027\u4e5f\u5f88\u597d\u3002<\/li>\n<li>Nginx\u73b0\u5728\u4f5c\u4e3aWeb\u53cd\u5411\u52a0\u901f\u7f13\u5b58\u8d8a\u6765\u8d8a\u6210\u719f\u4e86\uff0c\u901f\u5ea6\u6bd4\u4f20\u7edf\u7684Squid\u670d\u52a1\u5668\u66f4\u5feb\uff0c\u53ef\u4ee5\u8003\u8651\u7528\u5176\u4f5c\u4e3a\u53cd\u5411\u4ee3\u7406\u52a0\u901f\u5668\u3002<\/li>\n<li>Nginx\u53ef\u4f5c\u4e3a\u4e2d\u5c42\u53cd\u5411\u4ee3\u7406\u4f7f\u7528\uff0c\u8fd9\u4e00\u5c42\u9762Nginx\u57fa\u672c\u4e0a\u65e0\u5bf9\u624b\uff0c\u552f\u4e00\u53ef\u4ee5\u5bf9\u6bd4Nginx\u7684\u5c31\u53ea\u6709lighttpd\u4e86\uff0c\u4e0d\u8fc7lighttpd\u76ee\u524d\u8fd8\u6ca1\u6709\u505a\u5230Nginx\u5b8c\u5168\u7684\u529f\u80fd\uff0c\u914d\u7f6e\u4e5f\u4e0d\u90a3\u4e48\u6e05\u6670\u6613\u8bfb\uff0c\u793e\u533a\u8d44\u6599\u4e5f\u8fdc\u8fdc\u6ca1Nginx\u6d3b\u8dc3\u3002<\/li>\n<li>Nginx\u4e5f\u53ef\u4f5c\u4e3a\u9759\u6001\u7f51\u9875\u548c\u56fe\u7247\u670d\u52a1\u5668\uff0c\u8fd9\u65b9\u9762\u7684\u6027\u80fd\u4e5f\u65e0\u5bf9\u624b\u3002\u8fd8\u6709Nginx\u793e\u533a\u975e\u5e38\u6d3b\u8dc3\uff0c\u7b2c\u4e09\u65b9\u6a21\u5757\u4e5f\u5f88\u591a\u3002<\/li>\n<\/ol>\n<p><strong><span style=\"font-size: 24px;\">Nginx\u7684\u7f3a\u70b9\u662f\uff1a<\/span><\/strong><\/p>\n<ol>\n<li>Nginx\u4ec5\u80fd\u652f\u6301http\u3001https\u548cEmail\u534f\u8bae\uff0c\u8fd9\u6837\u5c31\u5728\u9002\u7528\u8303\u56f4\u4e0a\u9762\u5c0f\u4e9b\uff0c\u8fd9\u4e2a\u662f\u5b83\u7684\u7f3a\u70b9\u3002<\/li>\n<li>\u5bf9\u540e\u7aef\u670d\u52a1\u5668\u7684\u5065\u5eb7\u68c0\u67e5\uff0c\u53ea\u652f\u6301\u901a\u8fc7\u7aef\u53e3\u6765\u68c0\u6d4b\uff0c\u4e0d\u652f\u6301\u901a\u8fc7url\u6765\u68c0\u6d4b\u3002\u4e0d\u652f\u6301Session\u7684\u76f4\u63a5\u4fdd\u6301\uff0c\u4f46\u80fd\u901a\u8fc7ip_hash\u6765\u89e3\u51b3\u3002<\/li>\n<\/ol>\n<p>LVS\uff1a\u4f7f\u7528Linux\u5185\u6838\u96c6\u7fa4\u5b9e\u73b0\u4e00\u4e2a\u9ad8\u6027\u80fd\u3001\u9ad8\u53ef\u7528\u7684\u8d1f\u8f7d\u5747\u8861\u670d\u52a1\u5668\uff0c\u5b83\u5177\u6709\u5f88\u597d\u7684\u53ef\u4f38\u7f29\u6027\uff08Scalability)\u3001\u53ef\u9760\u6027\uff08Reliability)\u548c\u53ef\u7ba1\u7406\u6027\uff08Manageability)\u3002<\/p>\n<p><strong><span style=\"font-size: 24px;\">LVS\u7684\u4f18\u70b9\u662f\uff1a<\/span><\/strong><\/p>\n<ol>\n<li>\u6297\u8d1f\u8f7d\u80fd\u529b\u5f3a\u3001\u662f\u5de5\u4f5c\u5728\u7f51\u7edc4\u5c42\u4e4b\u4e0a\u4ec5\u4f5c\u5206\u53d1\u4e4b\u7528\uff0c\u6ca1\u6709\u6d41\u91cf\u7684\u4ea7\u751f\uff0c\u8fd9\u4e2a\u7279\u70b9\u4e5f\u51b3\u5b9a\u4e86\u5b83\u5728\u8d1f\u8f7d\u5747\u8861\u8f6f\u4ef6\u91cc\u7684\u6027\u80fd\u6700\u5f3a\u7684\uff0c\u5bf9\u5185\u5b58\u548ccpu\u8d44\u6e90\u6d88\u8017\u6bd4\u8f83\u4f4e\u3002<\/li>\n<li>\u914d\u7f6e\u6027\u6bd4\u8f83\u4f4e\uff0c\u8fd9\u662f\u4e00\u4e2a\u7f3a\u70b9\u4e5f\u662f\u4e00\u4e2a\u4f18\u70b9\uff0c\u56e0\u4e3a\u6ca1\u6709\u53ef\u592a\u591a\u914d\u7f6e\u7684\u4e1c\u897f\uff0c\u6240\u4ee5\u5e76\u4e0d\u9700\u8981\u592a\u591a\u63a5\u89e6\uff0c\u5927\u5927\u51cf\u5c11\u4e86\u4eba\u4e3a\u51fa\u9519\u7684\u51e0\u7387\u3002<\/li>\n<li>\u5de5\u4f5c\u7a33\u5b9a\uff0c\u56e0\u4e3a\u5176\u672c\u8eab\u6297\u8d1f\u8f7d\u80fd\u529b\u5f88\u5f3a\uff0c\u81ea\u8eab\u6709\u5b8c\u6574\u7684\u53cc\u673a\u70ed\u5907\u65b9\u6848\uff0c\u5982LVS+Keepalived\uff0c\u4e0d\u8fc7\u6211\u4eec\u5728\u9879\u76ee\u5b9e\u65bd\u4e2d\u7528\u5f97\u6700\u591a\u7684\u8fd8\u662fLVS\/DR+Keepalived\u3002<\/li>\n<li>DR\u6a21\u5f0f\u4e0b\uff0cLVS\u53ea\u5206\u53d1\u8bf7\u6c42\uff0c\u800c\u6d41\u91cf\u5e76\u4e0d\u4ece\u5b83\u672c\u8eab\u51fa\u53bb\uff0c\u8fd9\u70b9\u4fdd\u8bc1\u4e86\u5747\u8861\u5668IO\u7684\u6027\u80fd\u4e0d\u4f1a\u6536\u5230\u5927\u6d41\u91cf\u7684\u5f71\u54cd\u3002<\/li>\n<li>\u5e94\u7528\u8303\u56f4\u6bd4\u8f83\u5e7f\uff0c\u56e0\u4e3aLVS\u5de5\u4f5c\u57284\u5c42\uff0c\u6240\u4ee5\u5b83\u51e0\u4e4e\u53ef\u4ee5\u5bf9\u6240\u6709\u5e94\u7528\u505a\u8d1f\u8f7d\u5747\u8861\uff0c\u5305\u62echttp\u3001\u6570\u636e\u5e93\u3001\u5728\u7ebf\u804a\u5929\u5ba4\u7b49\u7b49\u3002<\/li>\n<\/ol>\n<p><strong><span style=\"font-size: 24px;\">LVS\u7684\u7f3a\u70b9\u662f\uff1a<\/span><\/strong><\/p>\n<ol>\n<li>\u8f6f\u4ef6\u672c\u8eab\u4e0d\u652f\u6301\u6b63\u5219\u8868\u8fbe\u5f0f\u5904\u7406\uff0c\u4e0d\u80fd\u505a\u52a8\u9759\u5206\u79bb\uff1b\u800c\u73b0\u5728\u8bb8\u591a\u7f51\u7ad9\u5728\u8fd9\u65b9\u9762\u90fd\u6709\u8f83\u5f3a\u7684\u9700\u6c42\uff0c\u8fd9\u4e2a\u662fNginx\/HAProxy+Keepalived\u7684\u4f18\u52bf\u6240\u5728\u3002<\/li>\n<li>\u5982\u679c\u662f\u7f51\u7ad9\u5e94\u7528\u6bd4\u8f83\u5e9e\u5927\u7684\u8bdd\uff0cLVS\/DR+Keepalived\u5b9e\u65bd\u8d77\u6765\u5c31\u6bd4\u8f83\u590d\u6742\u4e86\uff0c\u7279\u522b\u540e\u9762\u6709Windows\u00a0Server\u7684\u673a\u5668\u7684\u8bdd\uff0c\u5982\u679c\u5b9e\u65bd\u53ca\u914d\u7f6e\u8fd8\u6709\u7ef4\u62a4\u8fc7\u7a0b\u5c31\u6bd4\u8f83\u590d\u6742\u4e86\uff0c\u76f8\u5bf9\u800c\u8a00\uff0cNginx\/HAProxy+Keepalived\u5c31\u7b80\u5355\u591a\u4e86\u3002<\/li>\n<\/ol>\n<p><strong><span style=\"font-size: 24px;\">HAProxy\u7684\u7279\u70b9\u662f\uff1a<\/span><\/strong><\/p>\n<ol>\n<li>HAProxy\u4e5f\u662f\u652f\u6301\u865a\u62df\u4e3b\u673a\u7684\u3002<\/li>\n<li>HAProxy\u7684\u4f18\u70b9\u80fd\u591f\u8865\u5145Nginx\u7684\u4e00\u4e9b\u7f3a\u70b9\uff0c\u6bd4\u5982\u652f\u6301Session\u7684\u4fdd\u6301\uff0cCookie\u7684\u5f15\u5bfc\uff1b\u540c\u65f6\u652f\u6301\u901a\u8fc7\u83b7\u53d6\u6307\u5b9a\u7684url\u6765\u68c0\u6d4b\u540e\u7aef\u670d\u52a1\u5668\u7684\u72b6\u6001\u3002<\/li>\n<li>HAProxy\u8ddfLVS\u7c7b\u4f3c\uff0c\u672c\u8eab\u5c31\u53ea\u662f\u4e00\u6b3e\u8d1f\u8f7d\u5747\u8861\u8f6f\u4ef6\uff1b\u5355\u7eaf\u4ece\u6548\u7387\u4e0a\u6765\u8bb2HAProxy\u4f1a\u6bd4Nginx\u6709\u66f4\u51fa\u8272\u7684\u8d1f\u8f7d\u5747\u8861\u901f\u5ea6\uff0c\u5728\u5e76\u53d1\u5904\u7406\u4e0a\u4e5f\u662f\u4f18\u4e8eNginx\u7684\u3002<\/li>\n<li>HAProxy\u652f\u6301TCP\u534f\u8bae\u7684\u8d1f\u8f7d\u5747\u8861\u8f6c\u53d1\uff0c\u53ef\u4ee5\u5bf9MySQL\u8bfb\u8fdb\u884c\u8d1f\u8f7d\u5747\u8861\uff0c\u5bf9\u540e\u7aef\u7684MySQL\u8282\u70b9\u8fdb\u884c\u68c0\u6d4b\u548c\u8d1f\u8f7d\u5747\u8861\uff0c\u5927\u5bb6\u53ef\u4ee5\u7528LVS+Keepalived\u5bf9MySQL\u4e3b\u4ece\u505a\u8d1f\u8f7d\u5747\u8861\u3002<\/li>\n<li>HAProxy\u8d1f\u8f7d\u5747\u8861\u7b56\u7565\u975e\u5e38\u591a\uff0cHAProxy\u7684\u8d1f\u8f7d\u5747\u8861\u7b97\u6cd5\u73b0\u5728\u5177\u4f53\u6709\u5982\u4e0b8\u79cd\uff1a<\/li>\n<\/ol>\n<p>\u2460 roundrobin\uff0c\u8868\u793a\u7b80\u5355\u7684\u8f6e\u8be2\uff0c\u8fd9\u4e2a\u4e0d\u591a\u8bf4\uff0c\u8fd9\u4e2a\u662f\u8d1f\u8f7d\u5747\u8861\u57fa\u672c\u90fd\u5177\u5907\u7684\uff1b<br \/>\n\u2461 static-rr\uff0c\u8868\u793a\u6839\u636e\u6743\u91cd\uff0c\u5efa\u8bae\u5173\u6ce8\uff1b<br \/>\n\u2462 leastconn\uff0c\u8868\u793a\u6700\u5c11\u8fde\u63a5\u8005\u5148\u5904\u7406\uff0c\u5efa\u8bae\u5173\u6ce8\uff1b<br \/>\n\u2463 source\uff0c\u8868\u793a\u6839\u636e\u8bf7\u6c42\u6e90IP\uff0c\u8fd9\u4e2a\u8ddfNginx\u7684IP_hash\u673a\u5236\u7c7b\u4f3c\uff0c\u6211\u4eec\u7528\u5176\u4f5c\u4e3a\u89e3\u51b3session\u95ee\u9898\u7684\u4e00\u79cd\u65b9\u6cd5\uff0c\u5efa\u8bae\u5173\u6ce8\uff1b<br \/>\n\u2464 ri\uff0c\u8868\u793a\u6839\u636e\u8bf7\u6c42\u7684URI\uff1b<br \/>\n\u2465 rl_param\uff0c\u8868\u793a\u6839\u636e\u8bf7\u6c42\u7684URl\u53c2\u6570\u2019balance url_param\u2019 requires an URL parameter name\uff1b<br \/>\n\u2466 hdr(name)\uff0c\u8868\u793a\u6839\u636eHTTP\u8bf7\u6c42\u5934\u6765\u9501\u5b9a\u6bcf\u4e00\u6b21HTTP\u8bf7\u6c42\uff1b<br \/>\n\u2467 rdp-cookie(name)\uff0c\u8868\u793a\u6839\u636e\u636ecookie(name)\u6765\u9501\u5b9a\u5e76\u54c8\u5e0c\u6bcf\u4e00\u6b21TCP\u8bf7\u6c42\u3002<\/p>\n<p><\/div><\/div>\n<p>\u5e94\u7528\u573a\u666f<\/p>\n<pre class=\"code\">\u4e2d\u5c0f\u89c4\u6a21\uff0c\u65e5PV\u5c0f\u4e8e1000w\uff0c\u4e00\u822c\u6bd4\u6d41\u884c\u7684\u65b9\u6848\r\n\r\n1\u3001\u56db\u5c42\uff1ahaproxy\r\n2\u3001\u4e03\u5c42\uff1anginx\r\n3\u3001\u6570\u636e\u5e93\u5c42\uff1a\r\n   \u65b9\u6848\u4e3e\u4f8b\r\n   mysql\u4e00\u4e3b\u591a\u4ece+MHA+\uff08lvs+keepalived\u65b9\u6848\uff09\r\n     MHA\u4f5c\u7528\uff1a\r\n       1\u3001MHA\u4f1a\u76d1\u63a7\u4e3b\u5e93\u6302\u6389\u540e\uff0c\u9009\u51fa\u4e00\u4e2a\u65b0\u4e3b\uff0c\u7136\u540e\u5176\u4ed6\u4ece\u90fd\u50cf\u65b0\u4e3b\u540c\u6b65\u6570\u636e\r\n       2\u3001MHA\u4f1a\u4f7f\u7528\u811a\u672c\u6765\u7ef4\u62a4\u4e00\u4e2a\u5199\u5165\u64cd\u4f5c\u7528\u7684vip\uff0c\u5728\u9009\u51fa\u65b0\u4e3b\u540e\uff0c\u5199\u5165\u64cd\u4f5c\u7684vip\u4f1a\u81ea\u52a8\u504f\u79fb\u5230\u65b0\u4e3b\u4e0a\r\n     lvs+keepalived\u4f5c\u7528\uff1a\r\n       1\u3001\u7ef4\u62a4\u4e00\u4e2a\u8bfb\u64cd\u4f5c\u7684vip\r\n       2\u3001lvs\u56db\u5c42\u8d1f\u8f7d\u5747\u8861\u6240\u6709\u7684\u6570\u636e\u5e93\uff0c\u5305\u62ec\u4e3b\u5e93+\u591a\u4e2a\u4ece\u5e93\uff0c\u4e3b\u5e93\u7528\u6765\u63a5\u6536\u5199\u8bf7\u6c42\uff0c\u4f46\u80af\u5b9a\u4e5f\u80fd\u63a5\u7740\u8bfb\r\n\r\n     \u603b\u7ed3\uff1a\u8be5\u65b9\u6848\u63d0\u4f9b\u4e00\u4e2a\u5199\u64cd\u4f5c\u7684vip\u3001\u4e00\u4e2a\u8bfb\u64cd\u4f5c\u7684vip\uff0c\u7136\u540e\u5e94\u7528\u7a0b\u5e8f\u81ea\u5df1\u5b9e\u73b0\u8bfb\u5199\u5206\u79bb\r\n\r\n    \u4e5f\u53ef\u4ee5\u4e0d\u7528lvs+keepalived\uff0c\u53ef\u4ee5\u5f15\u5165\u6570\u636e\u5e93\u4e2d\u95f4\u4ef6\u5982mycat\u3001atlas\r\n       Atlas\u62e5\u6709\u7684\u529f\u80fd----\u300b\u4f60\u8bbf\u95eeatlas\u7684ip\u5730\u5740\uff0c\u5b83\u5e2e\u4f60\u5b9e\u73b0\r\n         1.\u8bfb\u5199\u5206\u79bb\r\n         2.\u4ece\u5e93\u8d1f\u8f7d\u5747\u8861\r\n       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class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2024\/03\/1020536-20180704121836906-165220622.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" class=\"alignnone size-full wp-image-10935\" data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2024\/03\/1020536-20180704121836906-165220622.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" width=\"746\" height=\"810\" \/><\/div><\/p>\n<ul>\n<li>\u56db\u5c42\uff1a\u786c\u4ef6\u8d1f\u8f7d\u5747\u8861(F5\u6216<strong>Array\uff09\/LVS <\/strong><\/li>\n<li><strong>\u4e03\u5c42\uff1aNginx\/Haproxy\u00a0<\/strong><\/li>\n<li>\u670d\u52a1\u5c42\uff1aAppServer<\/li>\n<\/ul>\n<pre class=\"code\">\u5bf9\u8f6f\u4ef6\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u7684\u51e0\u4e2a\u8f6f\u4ef6\uff0c<strong>\u4ece\u6027\u80fd\u548c\u7a33\u5b9a\u4e0a\u8fd8\u662fLVS\u6700\u725b\uff0c\u57fa\u672c\u8fbe\u5230\u4e86F5\u786c\u4ef6\u8bbe\u5907\u768460%\u6027\u80fd<\/strong>\uff0c\u5176\u4ed6\u51e0\u4e2a10%\u90fd\u6709\u70b9\u56f0\u96be\u3002\r\n\r\n\u4e0d\u8fc7\u5c31\u56e0\u4e3aLVS\u5fd2\u725b\u4e86\uff0c\u914d\u7f6e\u4e5f\u6700\u9ebb\u70e6\u4e86\uff0c\u800c\u4e14\u5065\u5eb7\u68c0\u6d4b\u9700\u8981\u53e6\u5916\u914d\u7f6eLdirector\uff0c\u5176\u4ed6HAPROXY\u548cNGINX\u81ea\u5df1\u5c31\u7528\uff0c\u800c\u4e14\u914d\u7f6e\u8d85\u7ea7\u7b80\u5355\u3002\r\n\u00a0\r\n\u6240\u4ee5\u5efa\u8bae\uff0c\u5982\u679c\u7f51\u7ad9\u8bbf\u95ee\u91cf\u4e0d\u662f\u95e8\u6237\u7ea7\u522b\u7684\u7528HAPROXY\u6216\u8005NGINX\u5c31OK\u4e86\uff0c\u5230\u4e86<strong>\u95e8\u6237\u7ea7\u522b\u5728\u7528LVS+DR<\/strong>\u5427.<\/pre>\n<h1>\u4e8c\u3001lvs\u6784\u6210<\/h1>\n<p>LVS 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\/>\n\uff083\uff09\u540e\u9762\u8fd8\u4f1a\u770b\u5230\uff0c\u5b9e\u9645\u4e0a LVS \u7684\u673a\u5668\u4ee3\u66ff\u771f\u5b9e\u7684\u670d\u52a1\u5668\u4e0e\u7528\u6237\u901a\u8fc7 TCP \u4e09\u6b21\u63e1\u624b\u5efa\u7acb\u4e86\u8fde\u63a5\uff0c\u6240\u4ee5 LVS \u662f\u9700\u8981\u5173\u5fc3\u300c\u8fde\u63a5\u300d\u7ea7\u522b\u7684\u72b6\u6001\u7684\u3002<\/li>\n<\/ul>\n<h1>\u56db\u3001LVS\u7684\u5de5\u4f5c\u6a21\u5f0f<\/h1>\n<p>LVS \u7684\u5de5\u4f5c\u6a21\u5f0f\u4e3b\u8981\u6709 4 \u79cd<\/p>\n<ul>\n<li>DR\uff08\u6548\u7387\u6700\u9ad8\uff09<\/li>\n<li>NAT<\/li>\n<li>TUN<\/li>\n<li>Full-NAT<\/li>\n<\/ul>\n<p>DR\u4e0eNAT\u6a21\u5f0f\u90fd\u9650\u5236\u4e3b\u673a\u5fc5\u987b\u5728\u4e00\u4e2a\u5c40\u57df\u7f51\u91cc\uff0c\u4e3a\u4e86\u6253\u7834\u8fd9\u4e2a\u9650\u5236\u624d\u6709TUN\u65b9\u6848\uff0c\u4f46\u662fTUN\u65b9\u6848\u6548\u7387\u4e0d\u5982DR\u6a21\u5f0f\u9ad8<\/p>\n<p>\u8981\u8be6\u7ec6\u4e86\u89e3\u4e0b\u8ff0lvs\u5404\u4e2a\u6a21\u5f0f\uff0c\u6709\u4e00\u4e2a\u5f62\u8c61\u7684\u6bd4\u55bb<br \/>\n1\u3001\u6570\u636e\u5305\u7684\u53d1\u9001\u8fc7\u7a0b&#8212;-&gt;\u5bc4\u5feb\u9012<br \/>\n2\u3001\u6cbf\u9014\u7684\u7f51\u7edc\u8bbe\u5907&#8212;&#8212;&gt;\u5feb\u9012\u7ad9\u3001\u5feb\u9012\u5c0f\u54e5<\/p>\n<p>3\u3001ip\u5730\u5740&#8212;&#8212;&#8212;&#8212;-&gt;\u4e00\u4e2a\u533a\u57df\u7684\u5730\u5740<br \/>\n4\u3001mac\u5730\u5740&#8212;&#8212;&#8212;&#8212;&gt;\u67d0\u4e2a\u533a\u57df\u4e2d\u3001\u76ee\u6807\u8282\u70b9\u7684\u5177\u4f53\u5730\u5740<\/p>\n<h1>\u4e94\u3001LVS\u7684\u4e13\u4e1a\u672f\u8bed<\/h1>\n<p>\u8282\u70b9\u89d2\u8272\u7b80\u79f0<\/p>\n<ul>\n<li>DS\uff1adirector server\uff0c\u5373LVS\u8d1f\u8f7d\u5747\u8861\u5668\n<pre><code>BDS\uff1abackup director server\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u8d1f\u8f7d\u5747\u8861\u5668\u7684\u9ad8\u53ef\u7528\u884d\u751f\u51fa\u7684\u5907\u4efd.<\/code><\/pre>\n<\/li>\n<li>RS\uff1areal server \u771f\u5b9e\u7684\u63d0\u4f9b\u670d\u52a1\u7684server<\/li>\n<\/ul>\n<p>\u4e0d\u540c\u4f5c\u7528\u7684IP\u5730\u5740\u7684\u7b80\u79f0<\/p>\n<ul>\n<li>CIP\uff1aClient IP<\/li>\n<li>VIP\uff1a\u5411\u5916\u90e8\u76f4\u63a5\u9762\u5411\u7528\u6237\u8bf7\u6c42\uff0c\u4f5c\u4e3a\u7528\u6237\u8bf7\u6c42\u7684\u76ee\u6807\u7684ip\u5730\u5740\u3002<\/li>\n<li>DIP: Director IP,\u914d\u7f6e\u5728\u8d1f\u8f7d\u5747\u8861\u5668\u4e0a\u3001\u7528\u4e8e\u548c\u5185\u90e8\u670d\u52a1\u5668\u901a\u8baf\u7684ip\u5730\u5740\u3002<\/li>\n<li>RIP\uff1a Real Server IP\uff0c\u5373\u771f\u5b9e\u7684\u63d0\u4f9b\u670d\u52a1\u7684server\u7684IP\u5730\u5740<\/li>\n<\/ul>\n<h1>\u516d\u3001DR\u6a21\u5f0f\uff08\u6027\u80fd\u6700\u5f3a\uff0c\u53ea\u624e\u4e00\u6b21\u5fc3\uff09<\/h1>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2024\/03\/\u5fae\u4fe1\u56fe\u7247_20240523205208.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" class=\"alignnone size-full wp-image-10937\" data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2024\/03\/\u5fae\u4fe1\u56fe\u7247_20240523205208.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" width=\"949\" height=\"422\"  sizes=\"(max-width: 949px) 100vw, 949px\" \/><\/div><\/p>\n<p>\u4f5c\u56fe\u5730\u5740\uff1ahttps:\/\/www.processon.com\/diagraming\/58959fb0e4b0c87c63e760d1<\/p>\n<div  class='collapse-block shadow-sm collapse-block-transparent collapsed hide-border-left'><div class='collapse-block-title'><span class='collapse-block-title-inner'>\u4e00\u3001\u914d\u7f6e\u6982\u8ff0<\/span><i class='collapse-icon fa fa-angle-down'><\/i><\/div><div class='collapse-block-body' style='display:none;'><\/p>\n<p>DR \u6a21\u5f0f\u4e0b\u9700\u8981 LVS \u548c RS\u7ed1\u5b9a\u540c\u4e00\u4e2a VIP\uff08RS \u901a\u8fc7\u5c06 VIP \u914d\u7f6e\u5728lo\u7f51\u5361\u4e0a\uff0c\u8be6\u89e3\u5982\u4e0b<\/p>\n<p>1\u3001lvs\u8d1f\u8f7d\u5747\u8861\u5668\u4e0a\uff1a\u914d\u7f6eVIP\u4e0eDIP\uff0c\u53ef\u4ee5\u5728\u540c\u4e00\u5757\u7f51\u5361\u4e0a\uff0c\u5e76\u4e14\u662f\u8fde\u7740\u7f51\u7ebf\u7684\u771f\u5b9e\u7269\u7406\u7f51\u5361\uff0c\u7528\u4e8e\u63a5\u6536\u6d41\u91cf<\/p>\n<pre>\uff081\uff09VIP\uff1a\u7528\u6237\u8bf7\u6c42\u8bbf\u95ee\u7684\u76ee\u6807IP\uff0c\u9700\u8981\u914d\u7f6e\u5728lvs\u7684\u771f\u5b9e\u7269\u7406\u7f51\u5361\u4e0a\r\n\uff082\uff09DIP\uff1alvs\u8d1f\u8f7d\u5747\u8861\u4e0e\u96c6\u7fa4\u5185RS\u901a\u4fe1\u7684ip\u5730\u5740<\/pre>\n<pre>2\u3001RS\u4e0a\uff1a\r\n\uff081\uff09\u914d\u7f6e\u4e0eDIP\u53ef\u901a\u4fe1\u7684ip\u5730\u5740\u4e4b\u5916\uff0c\u8fd8\u5fc5\u987b\u5728lo\u7f51\u5361\u4e0a\u6dfb\u52a0\u4e00\u4e2avip\u5730\u5740\uff0c\u4e3a\u4f55\u8981\u5728lo\u8fd9\u79cd\u770b\u4f3c\u65e0\u7528\u7684\u7f51\u5361\u4e0a\u914dvip\u5462\uff1f\u4e0b\u9762\u89e3\u7b54\r\n\uff082\uff09\u5173\u95edarp\u5305\u7684\u901a\u544a\u4e0e\u54cd\u5e94\uff08\u5728\u6240\u6709RS\u4e0a\u90fd\u9700\u8981\u540c\u6837\u7684\u64cd\u4f5c\uff09<\/pre>\n<p>3\u3001<span style=\"background-color: #ff0000;\">\u4e3a\u4f55\u8981\u5173\u95edARP\u901a\u544a\u4e0e\u54cd\u5e94\u5462\uff1f<\/span><\/p>\n<pre>\u540c\u4e00\u4e2a\u5e7f\u64ad\u57df: \u914d\u7f6e\u4e86\u591a\u4e2a\u76f8\u540c\u7684VIP\u00a0 \u662f\u4e0d\u5141\u8bb8\u7684, \u8981\u60f3\u5b9e\u73b0\uff0c\u5c31\u5fc5\u987b\u8ba9\u5916\u9762\u7684\u7f51\u7edc, \u65e0\u6cd5\u53d1\u73b0\u8fd9\u4e2aVIP\u7684\u5b58\u5728 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \r\n\u56e0\u6b64 \u5728Linux\u91cc\u9762, \u53ef\u4ee5\u4fee\u6539\u5185\u6838\u53c2\u6570,\u00a0 \u5b9e\u73b0\u63a5\u53e3IP\u7684\u5e7f\u64ad\u4e0d\u54cd\u5e94\u3001\u4e0d\u5e7f\u64ad\r\n<span style=\"background-color: #339966;\">arp_ignore = 1\u00a0 \u8868\u793a\u53ea\u56de\u7b54\u76ee\u6807IP\u662f\u8bbf\u95ee\u672c\u5730\u7f51\u7edc\u5bf9\u5e94\u63a5\u53e3\u7684arp\u8bf7\u6c42\r\narp_announce = 2\u00a0 \u53ea\u5ba3\u544a\u672c\u673a\u7f51\u5361\u76f4\u8fde\u7f51\u7edc\u6240\u5728\u7684ip\u7684arp\u5e7f\u64ad<\/span><\/pre>\n<p><\/div><\/div>\n<div  class='collapse-block shadow-sm collapse-block-transparent collapsed hide-border-left'><div class='collapse-block-title'><span class='collapse-block-title-inner'>\u4e8c\u3001\u6838\u5fc3\u539f\u7406\u8be6\u89e3<\/span><i class='collapse-icon fa fa-angle-down'><\/i><\/div><div class='collapse-block-body' style='display:none;'><\/p>\n<p>\u4e00\u53e5\u8bdd\uff1a\u8bf7\u6c42\u7531 LVS \u8d1f\u8f7d\u5747\u8861\u5668\u63a5\u6536\uff0c\u7531\u771f\u5b9e\u63d0\u4f9b\u670d\u52a1\u7684\u670d\u52a1\u5668\uff08RealServer, RS\uff09\u76f4\u63a5\u8fd4\u56de\u7ed9\u7528\u6237\uff0c\u5373\u8fd4\u56de\u7684\u65f6\u5019\u4e0d\u7ecf\u8fc7 LVS<\/p>\n<p>\u8be6\u89e3\u5982\u4e0b<\/p>\n<p>1\u3001\u5ba2\u6237\u7aef\u8bbf\u95eeLVS\u5bf9\u5916\u516c\u5f00\u7684VIP\u5730\u5740\uff0c\u5305\u5185\u7684\u6e90ip\u4e0e\u76ee\u6807ip\u4e3a\uff1aCIP-&gt;VIP<\/p>\n<p>2\u3001LVS\u8d1f\u8f7d\u5747\u8861\u5668\u6536\u5230\u76ee\u6807ip\u662f\u81ea\u5df1\u7684\u7269\u7406\u7f51\u5361\u4e0a\u914d\u7f6e\u7684vip\u5730\u5740\uff0c\u5219\u54cd\u5e94\u8bf7\u6c42\uff0cDR\u6a21\u5f0f\u4e0b\uff0cLVS \u4f1a\u5c06\u7f51\u7edc\u5e27\u7684 MAC \u5730\u5740\u4fee\u6539\u4e3a\u67d0\u4e00\u53f0 RS \u7684 MAC\uff0c\u8be5\u5305\u5c31\u4f1a\u88ab\u8f6c\u53d1\u5230\u76f8\u5e94\u7684 RS \u5904\u7406\uff0c \u6ce8\u610f\u6b64\u65f6\u7684\u6e90 IP \u548c\u76ee\u6807 IP \u90fd\u6ca1\u53d8\uff0cLVS \u53ea\u662f\u505a\u4e86\u4e00\u4e0b\u79fb\u82b1\u63a5\u6728\u3002\u4e8e\u662f\u8be5\u5305\u4f1a\u5728\u5c40\u57df\u7f51\u5185mac\u5730\u5740\u5e7f\u64ad\u7ed9\u76ee\u6807RS\uff0c\u5305\uff08CIP -&gt; VIP | RIP@MAC\u5730\u5740\uff09<\/p>\n<p>3\u3001\u76ee\u6807RS\u6536\u5230\u5305\u540e\uff0c\u53d1\u73b0\u76ee\u6807mac\u662f\u81ea\u5df1\uff0c\u5e76\u4e14\u76ee\u6807ip\u5730\u5740\u4e3aVIP\u5730\u5740\uff0c\u8fd9\u4e2aVIP\u5730\u5740\u5728RS\u673a\u5668\u81ea\u5df1\u7684lo\u7f51\u5361\u4e0a\uff0c \u4e8e\u662fRS\u5224\u5b9a\u8fd9\u4e2a\u5305\u5c31\u662f\u81ea\u5df1\u7684\uff08\u4e0d\u9700\u8981\u5efa\u7acb\u8fde\u63a5\u3001RS\u538b\u6839\u611f\u77e5\u4e0d\u5230LVS\u7684\u5b58\u5728\uff09\uff0c\u6240\u4ee5\u5f00\u59cb\u54cd\u5e94\u5305\uff0c\u8fd4\u56de\u5305\u7684\u65f6\u5019\u6e90ip\u5c31\u662fRS\u81ea\u5df1\u673a\u5668\u4e0a\u914d\u7f6e\u7684\u7684vip\u5730\u5740\uff0c\u76ee\u6807ip\u5c31\u662f\u5ba2\u6237\u7aef\u7684ip\u5730\u5740\uff0c\u6240\u4ee5\u54cd\u5e94\u5305\u76f4\u63a5\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff0c\u5373\u8fd4\u56de\u5305\u7684\u65f6\u5019\u5e76\u4e0d\u4f1a\u8d70lvs\u8d1f\u8f7d\u5747\u8861<\/p>\n<p><\/div><\/div>\n<div  class='collapse-block shadow-sm collapse-block-transparent collapsed hide-border-left'><div class='collapse-block-title'><span class='collapse-block-title-inner'>\u4e09\u3001\u603b\u7ed3<\/span><i class='collapse-icon fa fa-angle-down'><\/i><\/div><div class='collapse-block-body' style='display:none;'><\/p>\n<pre><code>1.\u8bf7\u6c42\u8d70lvs\u8d1f\u8f7d\u5747\u8861\uff0c\u54cd\u5e94\u4e0d\u8d70lvs\uff0c\u76f4\u63a5\u56de\u5ba2\u6237\r\n2.\u8d1f\u8f7d\u5747\u8861\u5728\u6b63\u5e38\u7f51\u5361\u914d\u7f6evip\uff0crs\u670d\u52a1\u5668\u9700\u8981\u5728lo\u7f51\u5361\u4e0a\u914d\u7f6evip\uff0c\u56e0\u4e3a\u6570\u636e\u5305\u662fmac\u5730\u5740\u8f6c\u53d1\u7684\uff0c\u76ee\u6807ip\u59cb\u7ec8\u4e3avip\u4e0d\u4f1a\u53d8\uff0c\r\n\u8fd9\u5c31\u8981\u6c42\u96c6\u7fa4\u5185\u6bcf\u53f0\u673a\u5668\u90fd\u5fc5\u987b\u6709vip\u624d\u884c\uff0c\u4f46\u8d1f\u8f7d\u5747\u8861\u4e0a\u7684vip\u662f\u914d\u5728\u771f\u7f51\u5361\u4e0a\u7684\uff0crs\u670d\u52a1\u5668\u662f\u672c\u5730\u56de\u73aflo\u3002\r\n\u4e3a\u4f55\u8981\u914d\u7f6e\u5728\u672c\u5730\u56de\u73af\u4e0a\uff1f\u4f60\u5e94\u8be5\u4f60\u660e\u767d\u4e86\r\n\u56e0\u4e3a\u6ca1\u6709\u8fd9\u4e2avip\u5185\u6838\u6536\u5230\u4e86\u62a5\u5373\u4fbf\u76ee\u6807mac\u5730\u5740\u662f\u81ea\u5df1\uff0c\u53d1\u73b0\u76ee\u6807ip\u4e0d\u662f\u81ea\u5df1\uff0c\u4e5f\u4f1a\u4e22\u6389\u8fd9\u4e2a\u5305\uff0c\u6240\u4ee5\u4e00\u4e2a\u7cfb\u5217\u64cd\u4f5c\u90fd\u662f\u4e3a\u4e86\u9a97\u8fc7\u5185\u6838\r\n<\/code><\/pre>\n<p><\/div><\/div>\n<p>\u914d\u7f6e\u793a\u4f8b\uff1a<a href=\"https:\/\/egonlin.com\/?p=9312\">https:\/\/egonlin.com\/?p=9312<\/a><\/p>\n<p><span style=\"background-color: #ff0000;\">lvs\u56db\u5c42&#8211;\u4ee3\u7406\u6570\u636e\u5e93\uff1areal server\u662f\u6570\u636e\u5e93<\/span><\/p>\n<p><span style=\"background-color: #ff0000;\">lvs\u56db\u5c42&#8211;\u4ee3\u7406\u4e03\u5c42\u8d1f\u8f7d\u5747\u8861nginx&#8212;\u4ee3\u7406web\u670d\u52a1\u5668\uff1areal server\u662f\u4e03\u5c42\u8d1f\u8f7d\u5747\u8861nginx\uff0c\u9700\u8981\u5728\u5b83\u7684lo\u4e0a\u914d\u7f6evip<\/span><\/p>\n<pre class=\"code\">\u5728\u4f7f\u7528LVS\uff08Linux Virtual Server\uff09\u7684Direct Routing\uff08DR\uff09\u6a21\u5f0f\u4e0b\uff0c\u5b9e\u9645\u8fd0\u884c\u7684\u60c5\u51b5\u662f\u8fd9\u6837\u7684\uff1a\r\n1\u3001LVS\u7684DR\u6a21\u5f0f\uff1a\u5728DR\u6a21\u5f0f\u4e0b\uff0c\u8bf7\u6c42\u9996\u5148\u5230\u8fbeLVS, LVS\u6839\u636e\u914d\u7f6e\u7684\u8d1f\u8f7d\u5747\u8861\u7b97\u6cd5\u9009\u62e9\u4e00\u4e2a\u540e\u7aef\u670d\u52a1\u5668\uff0c\u5e76\u4e14\u5c06\u8bf7\u6c42\u8f6c\u53d1\u5230\u8fd9\u4e2a\u540e\u7aef\u670d\u52a1\u5668\u3002\u5728\u8fd9\u79cd\u6a21\u5f0f\u4e0b\uff0c\u6570\u636e\u5305\u7684\u76ee\u7684\u5730IP\u4e0d\u53d8\uff0c\u5373VIP\u3002\r\n\r\n2\u3001\u540e\u7aef\u670d\u52a1\u5668\uff1a\u5728\u8fd9\u4e2a\u914d\u7f6e\u4e2d\uff0c\u88ab\u9009\u4e2d\u7684\u540e\u7aef\u670d\u52a1\u5668\u5e94\u8be5\u662f\u914d\u7f6e\u6709VIP\u7684\u670d\u52a1\u5668\uff0c\u56e0\u4e3a\u5b83\u4eec\u9700\u8981\u63a5\u6536\u5230\u8fd9\u4e2aVIP\u7684\u6d41\u91cf\u3002\u5728\u4f7f\u7528Nginx\u4f5c\u4e3a\u4e03\u5c42\u8d1f\u8f7d\u5747\u8861\u5668\u7684\u573a\u666f\u4e0b\uff0c\u610f\u5473\u7740Nginx\u670d\u52a1\u5668\uff08\u4f5c\u4e3areal server\uff09\u4f1a\u62e5\u6709VIP\u3002\r\n\r\n3\u3001Nginx\u7684\u89d2\u8272\uff1a\u8fd9\u4e9bNginx\u670d\u52a1\u5668\u4f1a\u6839\u636e\u4e03\u5c42\u7684\u8d1f\u8f7d\u5747\u8861\u89c4\u5219\u6765\u5904\u7406\u8bf7\u6c42\uff0c\u53ef\u80fd\u5305\u62ec\u57fa\u4e8eHTTP\u5934\u90e8\u3001URL\u7b49\u7684\u51b3\u7b56\u3002\u7136\u540eNginx\u5c06\u8bf7\u6c42\u4ee3\u7406\u4f20\u9012\u7ed9\u5b9e\u9645\u7684Web\u670d\u52a1\u5668\u3002\r\n\r\n4\u3001Web\u670d\u52a1\u5668\uff1a\u6700\u7ec8\u7684Web\u670d\u52a1\u5668\u53ea\u5904\u7406\u5b83\u4eec\u6536\u5230\u7684\u6765\u81eaNginx\u7684\u8bf7\u6c42\uff0c\u800c\u4e0d\u76f4\u63a5\u66b4\u9732\u5728VIP\u4e0a\u3002\r\n\r\n\u56e0\u6b64\uff0c\u5728\u8fd9\u79cdDR\u6a21\u5f0f\u4e0b\u914d\u5408Nginx\u548cWeb\u670d\u52a1\u5668\u7684\u8bbe\u7f6e\u4e2d\uff0c\u771f\u6b63\u914d\u7f6eVIP\u7684\u201creal servers\u201d\u5e94\u8be5\u662f\u627f\u62c5\u4e03\u5c42\u8d1f\u8f7d\u5747\u8861\u529f\u80fd\u7684Nginx\u670d\u52a1\u5668\u3002Web\u670d\u52a1\u5668\u4e0d\u9700\u8981\u4ee5\u53ca\u4e5f\u4e0d\u5e94\u8be5\u914d\u7f6eVIP\uff0c\u800c\u662f\u53ea\u54cd\u5e94\u6765\u81ea\u4e03\u5c42\u8d1f\u8f7d\u5747\u8861Nginx\u7684\u8bf7\u6c42\u3002\u8fd9\u6837\u505a\u53ef\u4ee5\u786e\u4fdd\u8bf7\u6c42\u548c\u54cd\u5e94\u7684\u6d41\u7a0b\u662f\u8fde\u8d2f\u7684\uff0c\u800c\u7f51\u7edc\u62d3\u6251\u7684\u7ed3\u6784\u548c\u6d41\u91cf\u7ba1\u7406\u53ef\u4ee5\u6839\u636eLVS\u7684DR\u6a21\u5f0f\u6b63\u5e38\u5de5\u4f5c\r\n<\/pre>\n<h1>\u4e03\u3001NAT\u6a21\u5f0f\uff08\u6765\u56de\u624e\u4e24\u6b21\u5fc3\uff09<\/h1>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2024\/03\/image-1711641147903.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2024\/03\/image-1711641147903.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n\u7279\u70b9\u7b80\u8ff0<br \/>\n1.\u8bf7\u6c42\u4e0e\u54cd\u5e94\u90fd\u8d70\u8d1f\u8f7d\u5747\u8861<br \/>\n2.\u6240\u6709rs\u5fc5\u987b\u628a\u7f51\u5173\u6307\u5411\u8d1f\u8f7d\u5747\u8861\u624d\u884c\uff0c\u5426\u5219\u65e0\u6cd5\u56de\u5305\uff0c\u56e0\u4e3a\u56de\u5305\u65f6\u7684\u6e90ip\u662frs\u670d\u52a1\u5668\u81ea\u5df1\uff0c\u76ee\u6807ip\u662f\u5ba2\u6237\u7aef\u7684ip\u6240\u4ee5\u5fc5\u987b\u6709\u7f51\u5173\u8f6c\u53d1\u624d\u884c<br \/>\n\u7ec6\u8bf4\uff1a<br \/>\nNAT\uff08Network Address Translation\uff09\u662f\u4e00\u79cd\u5916\u7f51\u548c\u5185\u7f51\u5730\u5740\u6620\u5c04\u7684\u6280\u672f\u3002<br \/>\nNAT \u6a21\u5f0f\u4e0b\uff0c\u7f51\u7edc\u62a5\u7684\u8fdb\u51fa\u90fd\u8981\u7ecf\u8fc7 LVS \u7684\u5904\u7406\u3002LVS \u9700\u8981\u4f5c\u4e3a RS \u7684\u7f51\u5173\u3002<br \/>\n\u5f53\u5305\u5230\u8fbe LVS \u65f6\uff0cLVS \u505a\u76ee\u6807\u5730\u5740\u8f6c\u6362\uff08DNAT\uff09\uff0c\u5c06\u76ee\u6807 IP \u6539\u4e3a RS \u7684 IP\u3002RS \u63a5\u6536\u5230\u5305\u4ee5\u540e\uff0c\u4eff\u4f5b\u662f\u5ba2\u6237\u7aef\u76f4\u63a5\u53d1\u7ed9\u5b83\u7684\u4e00\u6837\u3002<br \/>\nRS \u5904\u7406\u5b8c\uff0c\u8fd4\u56de\u54cd\u5e94\u65f6\uff0c\u6e90 IP \u662f RS IP\uff0c\u76ee\u6807 IP \u662f\u5ba2\u6237\u7aef\u7684 IP\u3002<br \/>\n\u8fd9\u65f6 RS \u7684\u5305\u901a\u8fc7\u7f51\u5173\uff08LVS\uff09\u4e2d\u8f6c\uff0cLVS \u4f1a\u505a\u6e90\u5730\u5740\u8f6c\u6362\uff08SNAT\uff09\uff0c\u5c06\u5305\u7684\u6e90\u5730\u5740\u6539\u4e3a VIP\uff0c\u8fd9\u6837\uff0c\u8fd9\u4e2a\u5305\u5bf9\u5ba2\u6237\u7aef\u770b\u8d77\u6765\u5c31\u4eff\u4f5b\u662f LVS \u76f4\u63a5\u8fd4\u56de\u7ed9\u5b83\u7684\u3002\u5ba2\u6237\u7aef\u65e0\u6cd5\u611f\u77e5\u5230\u540e\u7aef RS \u7684\u5b58\u5728\u3002<\/p>\n<p>\u914d\u7f6e\u793a\u4f8b\uff1a<a href=\"https:\/\/egonlin.com\/?p=9315\">https:\/\/egonlin.com\/?p=9315<\/a><\/p>\n<h1>\u516b\u3001TUN\u6a21\u5f0f<\/h1>\n<ul>\n<li>IP Tunnel\uff08ip\u96a7\u9053\uff09\u89e3\u51b3DR\u6a21\u5f0f\u4e0bRS\u548cDS\u5904\u4e8e\u540c\u4e00\u7f51\u6bb5\u7684\u95ee\u9898\u3002ip\u96a7\u9053\u53ef\u4ee5\u7406\u89e3\u4e3aIP in IP, \u5373\u53d1\u9001\u65b9\u5728IP\u5934\u7684\u5916\u90e8\u518d\u5305\u88c5\u4e00\u4e2aIP\u5934\uff0c\u63a5\u6536\u65b9\u5148\u89e3\u51fa\u7b2c\u4e00\u5c42IP\u5934\uff0c\u7136\u540e\u518d\u6309\u7167\u6b63\u5e38\u6d41\u7a0b\u5904\u7406\u5269\u4e0b\u7684\u7684IP\u6570\u636e\u5305\u3002<\/li>\n<li>\u5177\u4f53\u6d41\u7a0b\u4e3a\uff1a 1\uff09\u7ed9\u6570\u636e\u5305\u6dfb\u52a0\u65b0\u7684IP\u5934\uff0c\u91cd\u65b0\u5c01\u88c5\u6570\u636e\u5305\u7136\u540e\u9009\u8def\u5c06\u6570\u636e\u5305\u53d1\u9001\u7ed9Real Server 2\uff09RS\u53d1\u73b0\u8bf7\u6c42\u62a5\u6587\u7684IP\u5730\u5740\u662f\u81ea\u5df1\u7684eth0\u7684IP\u5730\u5740\uff0c\u5c31\u5265\u6389IP\u96a7\u9053\u5305\u5934 3\uff09RS\u53d1\u73b0\u8bf7\u6c42\u62a5\u6587\u7684IP\u5730\u5740\u662f\u81ea\u5df1\u7684lo\u7684IP\u5730\u5740\uff0c\u5c31\u63a5\u6536\u6b64\u62a5\u6587\uff0c\u5904\u7406\u8bf7\u6c42\u540e\u6b63\u5e38\u53d1\u9001\u54cd\u5e94\u62a5\u6587(\u6e90IP\u662fVIP\uff0c\u76ee\u7684IP\u662fClientIP),\u5c06\u54cd\u5e94\u62a5\u6587\u901a\u8fc7lo\u63a5\u53e3\u4f20\u9001\u7ed9eth0\u7f51\u5361\u7136\u540e\u5411\u5916\u53d1\u51fa<\/li>\n<li>lo\uff1a\u7cfb\u7edf\u5185\u90e8\u63a5\u6536\u548c\u53d1\u9001\u6570\u636e\u5305 127.0.0.1 eth0\uff1a\u7f51\u5361 MAC\uff1a\u7f51\u5361\u7684\u7269\u7406\u5730\u5740 inet addr\uff1a\u7f51\u5361ip\u5730\u5740<\/li>\n<li>\u7279\u70b9\u4e3a\uff1a1\uff09DS\u6dfb\u52a0\u4e86IP\u5934\uff0c\u4f46\u662f\u4e0d\u4fee\u6539\u4f20\u8f93\u5c42\u6570\u636e\uff0c\u6545TUN\u4e0d\u652f\u6301\u7aef\u53e3\u6620\u5c04 2\uff09\u53ea\u8981IP\u53ef\u8fbe\uff0cRS\u5b8c\u5168\u53ef\u4ee5\u5206\u5e03\u5230\u4e0d\u540c\u7684\u673a\u623f\u548c\u7f51\u6bb5 3\uff09RS\u9700\u8981\u7ed1\u5b9aVIP\u5230lo\uff0c\u907f\u514d\u6620\u5c04\u6df7\u4e71 4\uff09\u4f1a\u5b58\u5728MTU\u7684\u95ee\u9898\uff0c\u5982\u679c\u4e00\u4e2a\u6570\u636e\u5305\u5df2\u7ecf\u8fbe\u5230\u4e86mtu\u7684\u5927\u5c0f\uff0cip\u96a7\u9053\u6dfb\u52a0\u4e00\u4e2aip\u5934\u4e4b\u540e\uff0c\u5305\u7684\u5927\u5c0f\u5c31\u4f1a\u8d85\u8fc7MTU\uff08\u89e3\u51b3\u65b9\u6848\u4e3a\u652f\u6301PMTUD\u534f\u8bae\u6216\u51cf\u5c0fRS\u7684MSS\uff09 5\uff09\u89e3\u51b3\u4e86RS\u7684\u90e8\u7f72\u548c\u6269\u5c55\u95ee\u9898\uff0c\u4f46\u662fDS\u7684\u6269\u5c55\u95ee\u9898\u65e0\u6cd5\u89e3\u51b3\uff0c\u53ea\u80fd\u505a\u4e3b\u5907\u9ad8\u53ef\u7528<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2024\/03\/image-1711640622663.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2024\/03\/image-1711640622663.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><\/li>\n<\/ul>\n<h1>\u4e5d\u3001Full-NAT\u6a21\u5f0f<\/h1>\n<p>\u65e0\u8bba\u662f DR \u8fd8\u662f NAT \u6a21\u5f0f\uff0c\u4e0d\u53ef\u907f\u514d\u7684\u90fd\u6709\u4e00\u4e2a\u95ee\u9898\uff1aLVS \u548c RS \u5fc5\u987b\u5728\u540c\u4e00\u4e2a VLAN \u4e0b\uff0c\u5426\u5219 LVS \u65e0\u6cd5\u4f5c\u4e3a RS \u7684\u7f51\u5173\u3002<br \/>\n\u8fd9\u5f15\u53d1\u7684\u4e24\u4e2a\u95ee\u9898\u662f\uff1a<\/p>\n<p>1\u3001\u540c\u4e00\u4e2a VLAN \u7684\u9650\u5236\u5bfc\u81f4\u8fd0\u7ef4\u4e0d\u65b9\u4fbf\uff0c\u8de8 VLAN \u7684 RS \u65e0\u6cd5\u63a5\u5165\u3002<\/p>\n<p>2\u3001LVS \u7684\u6c34\u5e73\u6269\u5c55\u53d7\u5230\u5236\u7ea6\u3002\u5f53 RS \u6c34\u5e73\u6269\u5bb9\u65f6\uff0c\u603b\u6709\u4e00\u5929\u5176\u4e0a\u7684\u5355\u70b9 LVS \u4f1a\u6210\u4e3a\u74f6\u9888\u3002<\/p>\n<p>Full-NAT \u7531\u6b64\u800c\u751f\uff0c\u89e3\u51b3\u7684\u662f LVS \u548c RS \u8de8 VLAN \u7684\u95ee\u9898\uff0c\u800c\u8de8 VLAN \u95ee\u9898\u89e3\u51b3\u540e\uff0cLVS \u548c RS \u4e0d\u518d\u5b58\u5728 VLAN \u4e0a\u7684\u4ece\u5c5e\u5173\u7cfb\uff0c\u53ef\u4ee5\u505a\u5230\u591a\u4e2a LVS \u5bf9\u5e94\u591a\u4e2a RS\uff0c\u89e3\u51b3\u6c34\u5e73\u6269\u5bb9\u7684\u95ee\u9898\u3002<\/p>\n<p>Full-NAT \u76f8\u6bd4 NAT \u7684\u4e3b\u8981\u6539\u8fdb\u662f\uff0c\u5728 SNAT\/DNAT \u7684\u57fa\u7840\u4e0a\uff0c\u52a0\u4e0a\u53e6\u4e00\u79cd\u8f6c\u6362\uff0c\u8f6c\u6362\u8fc7\u7a0b\u5982\u4e0b\uff1a<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2024\/03\/image-1711640013822.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2024\/03\/image-1711640013822.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><br \/>\n\u5728\u5305\u4ece LVS \u8f6c\u5230 RS \u7684\u8fc7\u7a0b\u4e2d\uff0c\u6e90\u5730\u5740\u4ece\u5ba2\u6237\u7aef IP \u88ab\u66ff\u6362\u6210\u4e86 LVS \u7684\u5185\u7f51 IP\u3002<br \/>\n\u5185\u7f51 IP \u4e4b\u95f4\u53ef\u4ee5\u901a\u8fc7\u591a\u4e2a\u4ea4\u6362\u673a\u8de8 VLAN \u901a\u4fe1\u3002<br \/>\n\u5f53 RS \u5904\u7406\u5b8c\u63a5\u53d7\u5230\u7684\u5305\uff0c\u8fd4\u56de\u65f6\uff0c\u4f1a\u5c06\u8fd9\u4e2a\u5305\u8fd4\u56de\u7ed9 LVS \u7684\u5185\u7f51 IP\uff0c\u8fd9\u4e00\u6b65\u4e5f\u4e0d\u53d7\u9650\u4e8e VLAN\u3002<br \/>\nLVS \u6536\u5230\u5305\u540e\uff0c\u5728 NAT \u6a21\u5f0f\u4fee\u6539\u6e90\u5730\u5740\u7684\u57fa\u7840\u4e0a\uff0c\u518d\u628a RS \u53d1\u6765\u7684\u5305\u4e2d\u7684\u76ee\u6807\u5730\u5740\u4ece LVS \u5185\u7f51 IP 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