{"id":78632,"date":"2026-02-27T22:31:41","date_gmt":"2026-02-27T14:31:41","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/78632.html"},"modified":"2026-02-27T22:31:41","modified_gmt":"2026-02-27T14:31:41","slug":"linux-virtual-server-lvs-%e8%b4%9f%e8%bd%bd%e5%9d%87%e8%a1%a1%e9%9b%86%e7%be%a4%e7%ac%94%e8%ae%b0","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/78632.html","title":{"rendered":"Linux Virtual Server (LVS) \u8d1f\u8f7d\u5747\u8861\u96c6\u7fa4\u7b14\u8bb0"},"content":{"rendered":"<p>\u7b14\u8bb0\u8bf4\u660e&#xff1a;\u672c\u6587\u6863\u65e8\u5728\u7cfb\u7edf\u6027\u5730\u68b3\u7406LVS\u7684\u6838\u5fc3\u6982\u5ff5\u3001\u5de5\u4f5c\u539f\u7406\u3001\u8c03\u5ea6\u7b97\u6cd5&#xff0c;\u5e76\u63d0\u4f9bNAT\u4e0eDR\u6a21\u5f0f\u7684\u8be6\u7ec6\u5b9e\u9a8c\u6b65\u9aa4&#xff0c;\u4f5c\u4e3a\u5b66\u4e60\u548c\u914d\u7f6eLVS\u7684\u53c2\u8003\u624b\u518c\u3002<\/p>\n<h4>\u4e00\u3001LVS \u6838\u5fc3\u6982\u5ff5\u4e0e\u539f\u7406<\/h4>\n<h5>1.1 LVS\u662f\u4ec0\u4e48<\/h5>\n<p>LVS (Linux Virtual Server)\u00a0\u662f\u96c6\u6210\u4e8eLinux\u5185\u6838\u7684\u9ad8\u6027\u80fd\u3001\u9ad8\u53ef\u7528\u7684\u8d1f\u8f7d\u5747\u8861\u96c6\u7fa4\u89e3\u51b3\u65b9\u6848&#xff0c;\u7531\u7ae0\u6587\u5d69\u535a\u58eb\u53d1\u8d77\u3002\u5176\u6838\u5fc3\u4f5c\u7528\u662f\u5c06\u5ba2\u6237\u7aef\u7684\u5927\u91cf\u8bf7\u6c42&#xff0c;\u6839\u636e\u6307\u5b9a\u7684\u7b56\u7565&#xff0c;\u667a\u80fd\u5730\u5206\u53d1\u5230\u540e\u7aef\u7684\u591a\u53f0\u771f\u5b9e\u670d\u52a1\u5668&#xff08;Real Server&#xff0c;RS&#xff09;\u00a0\u4e0a&#xff0c;\u4ece\u800c\u63d0\u5347\u6574\u4e2a\u7cfb\u7edf\u7684\u5e76\u53d1\u5904\u7406\u80fd\u529b\u548c\u6574\u4f53\u53ef\u7528\u6027\u3002<\/p>\n<h5>1.2 \u6838\u5fc3\u672f\u8bed<\/h5>\n<p>\u7406\u89e3\u4ee5\u4e0bIP\u5730\u5740\u89d2\u8272\u662f\u638c\u63e1LVS\u7684\u57fa\u7840&#xff1a;<\/p>\n<ul>\n<li>\n<p>CIP (Client IP)&#xff1a;\u5ba2\u6237\u7aef\u7684IP\u5730\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>VIP (Virtual IP)&#xff1a;\u865a\u62dfIP\u5730\u5740&#xff0c;\u662f\u8d1f\u8f7d\u5747\u8861\u96c6\u7fa4\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\u7684\u7edf\u4e00IP\u3002<\/p>\n<\/li>\n<li>\n<p>DIP (Director IP)&#xff1a;\u8c03\u5ea6\u5668&#xff08;LVS\u670d\u52a1\u5668&#xff09;\u4e0e\u5185\u7f51\u771f\u5b9e\u670d\u52a1\u5668\u901a\u4fe1\u6240\u4f7f\u7528\u7684IP\u3002<\/p>\n<\/li>\n<li>\n<p>RIP (Real Server IP)&#xff1a;\u540e\u7aef\u771f\u5b9e\u670d\u52a1\u5668\u7684IP\u5730\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>VS (Virtual Server)&#xff1a;\u865a\u62df\u670d\u52a1\u5668&#xff0c;\u5373\u8fd0\u884cLVS\u7684\u8c03\u5ea6\u5668\u672c\u8eab\u3002<\/p>\n<\/li>\n<li>\n<p>RS (Real Server)&#xff1a;\u771f\u5b9e\u670d\u52a1\u5668&#xff0c;\u5b9e\u9645\u5904\u7406\u8bf7\u6c42\u7684\u670d\u52a1\u5668\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4e00\u4e2a\u5b8c\u6574\u7684\u8bf7\u6c42\u6d41\u8f6c\u8def\u5f84\u901a\u5e38\u4e3a&#xff1a;CIP -&gt; VIP (VS) -&gt; DIP -&gt; RIP (RS)\u3002<\/p>\n<h5>1.3 LVS\u7684\u56db\u79cd\u5de5\u4f5c\u6a21\u5f0f\u6df1\u5ea6\u89e3\u6790<\/h5>\n<p>LVS\u6839\u636e\u62a5\u6587\u8f6c\u53d1\u548c\u54cd\u5e94\u65b9\u5f0f\u7684\u4e0d\u540c&#xff0c;\u4e3b\u8981\u6709\u56db\u79cd\u5de5\u4f5c\u6a21\u5f0f&#xff1a;<\/p>\n<li>\n<p>LVS-NAT (\u7f51\u7edc\u5730\u5740\u8f6c\u6362)<\/p>\n<ul>\n<li>\n<p>\u539f\u7406&#xff1a;\u8c03\u5ea6\u5668\u4f5c\u4e3a\u7f51\u5173\u3002\u8bf7\u6c42\u8fdb\u5165\u65f6&#xff0c;VS\u5c06\u62a5\u6587\u76ee\u6807\u5730\u5740\u4eceVIP\u6539\u4e3a\u9009\u4e2d\u7684RIP (DNAT)&#xff1b;\u54cd\u5e94\u8fd4\u56de\u65f6&#xff0c;VS\u518d\u5c06\u6e90\u5730\u5740\u4eceRIP\u6539\u56deVIP (SNAT) \u8fd4\u56de\u5ba2\u6237\u7aef\u3002<\/p>\n<\/li>\n<li>\n<p>\u6570\u636e\u6d41&#xff1a;Client -&gt; VS (DNAT) -&gt; RS -&gt; VS (SNAT) -&gt; Client<\/p>\n<\/li>\n<li>\n<p>\u7279\u70b9&#xff1a;<\/p>\n<ul>\n<li>\n<p>RS\u7684\u7f51\u5173\u5fc5\u987b\u6307\u5411VS\u7684DIP\u3002<\/p>\n<\/li>\n<li>\n<p>\u8bf7\u6c42\u548c\u54cd\u5e94\u62a5\u6587\u90fd\u5fc5\u987b\u7ecf\u8fc7VS&#xff0c;VS\u5bb9\u6613\u6210\u4e3a\u6027\u80fd\u74f6\u9888\u3002<\/p>\n<\/li>\n<li>\n<p>\u652f\u6301\u7aef\u53e3\u6620\u5c04\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>LVS-DR (\u76f4\u63a5\u8def\u7531) \u2014\u2014 \u3010\u751f\u4ea7\u73af\u5883\u6700\u5e38\u7528\u3011<\/p>\n<ul>\n<li>\n<p>\u539f\u7406&#xff1a;VS\u4ec5\u5c06\u8bf7\u6c42\u62a5\u6587\u7684\u76ee\u6807MAC\u5730\u5740\u4fee\u6539\u4e3a\u9009\u4e2dRS\u7684MAC\u5730\u5740&#xff0c;\u5e76\u5c06\u62a5\u6587\u8f6c\u53d1\u51fa\u53bb\u3002RS\u5904\u7406\u540e&#xff0c;\u76f4\u63a5\u5c06\u54cd\u5e94\u62a5\u6587\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef&#xff0c;\u4e0d\u518d\u7ecf\u8fc7VS\u3002<\/p>\n<\/li>\n<li>\n<p>\u6570\u636e\u6d41&#xff1a;Client -&gt; VS (\u6539\u5199MAC) -&gt; RS -&gt; Client<\/p>\n<\/li>\n<li>\n<p>\u5173\u952e\u914d\u7f6e&#xff1a;<\/p>\n<li>\n<p>RS\u5fc5\u987b\u5728lo\u63a5\u53e3\u4e0a\u7ed1\u5b9aVIP\u3002<\/p>\n<\/li>\n<li>\n<p>RS\u5fc5\u987b\u8fdb\u884cARP\u6291\u5236&#xff0c;\u9632\u6b62\u5176\u7f51\u5361\u76f4\u63a5\u54cd\u5e94\u5ba2\u6237\u7aef\u7684ARP\u8bf7\u6c42\u3002\u63a8\u8350\u5185\u6838\u53c2\u6570\u5982\u4e0b&#xff1a;<\/p>\n<p>echo 1 &gt; \/proc\/sys\/net\/ipv4\/conf\/all\/arp_ignore      # \u4ec5\u56de\u7b54\u76ee\u6807IP\u4e3a\u63a5\u6536\u7f51\u5361IP\u7684ARP\u8bf7\u6c42<br \/>\necho 2 &gt; \/proc\/sys\/net\/ipv4\/conf\/all\/arp_announce   # \u901a\u544aARP\u65f6\u4f7f\u7528\u6700\u5408\u9002\u7684\u672c\u5730\u5730\u5740<\/p>\n<\/li>\n<\/li>\n<li>\n<p>\u7279\u70b9&#xff1a;\u6027\u80fd\u6781\u9ad8&#xff0c;\u54cd\u5e94\u6d41\u91cf\u4e0d\u7ecf\u8fc7VS\u3002\u4f46\u8981\u6c42VS\u4e0eRS\u5fc5\u987b\u5728\u540c\u4e00\u7269\u7406\u7f51\u7edc&#xff08;\u5e7f\u64ad\u57df&#xff09;&#xff0c;\u4e14\u4e0d\u652f\u6301\u7aef\u53e3\u6620\u5c04\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>LVS-TUN (IP\u96a7\u9053)<\/p>\n<ul>\n<li>\n<p>\u539f\u7406&#xff1a;VS\u5c06\u539f\u59cb\u7684IP\u62a5\u6587\u5c01\u88c5\u5728\u4e00\u4e2a\u65b0\u7684IP\u62a5\u6587\u4e2d&#xff08;\u6e90\u4e3aDIP&#xff0c;\u76ee\u6807\u4e3aRIP&#xff09;&#xff0c;\u901a\u8fc7IP\u96a7\u9053\u53d1\u9001\u7ed9RS\u3002RS\u89e3\u5c01\u88c5\u540e&#xff0c;\u76f4\u63a5\u54cd\u5e94\u5ba2\u6237\u7aef\u3002<\/p>\n<\/li>\n<li>\n<p>\u7279\u70b9&#xff1a;\u652f\u6301\u8de8\u5730\u57df\u90e8\u7f72&#xff08;RIP\u548cVIP\u53ef\u4ee5\u4e3a\u516c\u7f51IP&#xff09;&#xff0c;\u4f46RS\u9700\u652f\u6301\u5e76\u914d\u7f6eIP\u96a7\u9053\u534f\u8bae\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>LVS-FULLNAT<\/p>\n<ul>\n<li>\n<p>\u539f\u7406&#xff1a;VS\u540c\u65f6\u4fee\u6539\u8bf7\u6c42\u62a5\u6587\u7684\u6e90\u5730\u5740&#xff08;CIP -&gt; DIP&#xff09;\u548c\u76ee\u6807\u5730\u5740&#xff08;VIP -&gt; RIP&#xff09;\u3002\u54cd\u5e94\u62a5\u6587\u540c\u6837\u7ecf\u8fc7VS&#xff0c;\u8fdb\u884c\u76f8\u53cd\u7684\u5730\u5740\u8f6c\u6362\u3002<\/p>\n<\/li>\n<li>\n<p>\u7279\u70b9&#xff1a;\u90e8\u7f72\u6700\u7075\u6d3b&#xff0c;RIP\u548cDIP\u53ef\u4ee5\u8de8\u7f51\u7edc\u3002\u4f46\u53cc\u5411\u6d41\u91cf\u5747\u7ecf\u8fc7VS&#xff0c;\u4e14\u9700\u8981\u5185\u6838\u8865\u4e01\u652f\u6301&#xff08;\u975e\u5185\u6838\u539f\u751f&#xff09;\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u56db\u79cd\u6a21\u5f0f\u5bf9\u6bd4\u8868<\/p>\n<\/li>\n<table>\n<tr>\u7279\u6027NATDRTUNFULLNAT<\/tr>\n<tbody>\n<tr>\n<td>RS\u4e0eVS\u7f51\u7edc\u8981\u6c42<\/td>\n<td>\u540c\u4e00\u7f51\u7edc<\/td>\n<td>\u540c\u4e00\u5e7f\u64ad\u57df<\/td>\n<td>\u53ef\u8de8\u7f51\u7edc<\/td>\n<td>\u53ef\u8de8\u7f51\u7edc<\/td>\n<\/tr>\n<tr>\n<td>RS\u7f51\u5173\u6307\u5411<\/td>\n<td>\u5fc5\u987b\u6307\u5411VS<\/td>\n<td>\u6307\u5411\u7f51\u5173\u8def\u7531\u5668<\/td>\n<td>\u6307\u5411\u7f51\u5173\u8def\u7531\u5668<\/td>\n<td>\u6307\u5411\u7f51\u5173\u8def\u7531\u5668<\/td>\n<\/tr>\n<tr>\n<td>\u54cd\u5e94\u8def\u5f84<\/td>\n<td>\u7ecf\u8fc7VS<\/td>\n<td>\u76f4\u8fde\u5ba2\u6237\u7aef<\/td>\n<td>\u76f4\u8fde\u5ba2\u6237\u7aef<\/td>\n<td>\u7ecf\u8fc7VS<\/td>\n<\/tr>\n<tr>\n<td>\u7aef\u53e3\u6620\u5c04<\/td>\n<td>\u652f\u6301<\/td>\n<td>\u4e0d\u652f\u6301<\/td>\n<td>\u4e0d\u652f\u6301<\/td>\n<td>\u652f\u6301<\/td>\n<\/tr>\n<tr>\n<td>\u4e3b\u8981\u74f6\u9888<\/td>\n<td>VS&#xff08;\u53cc\u5411\u6d41\u91cf&#xff09;<\/td>\n<td>VS&#xff08;\u4ec5\u5904\u7406\u8bf7\u6c42&#xff09;<\/td>\n<td>\u96a7\u9053\u5c01\u88c5\u5f00\u9500<\/td>\n<td>VS&#xff08;\u53cc\u5411\u6d41\u91cf&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5>1.4 \u8c03\u5ea6\u7b97\u6cd5<\/h5>\n<p>\u8c03\u5ea6\u7b97\u6cd5\u51b3\u5b9a\u4e86VS\u5982\u4f55\u9009\u62e9\u540e\u7aefRS\u3002<\/p>\n<ul>\n<li>\n<p>\u9759\u6001\u7b97\u6cd5\u00a0(\u4e0d\u8003\u8651RS\u5f53\u524d\u8d1f\u8f7d)<\/p>\n<ul>\n<li>\n<p>RR (\u8f6e\u8be2)&#xff1a;\u8bf7\u6c42\u4f9d\u6b21\u5e73\u5747\u5206\u914d\u3002<\/p>\n<\/li>\n<li>\n<p>WRR (\u52a0\u6743\u8f6e\u8be2)&#xff1a;\u6839\u636e\u6743\u91cd\u6bd4\u4f8b\u5206\u914d&#xff0c;\u6743\u91cd\u9ad8\u7684RS\u83b7\u5f97\u66f4\u591a\u8bf7\u6c42\u3002<\/p>\n<\/li>\n<li>\n<p>SH (\u6e90\u5730\u5740\u54c8\u5e0c)&#xff1a;\u6765\u81ea\u540c\u4e00CIP\u7684\u8bf7\u6c42\u59cb\u7ec8\u53d1\u5f80\u540c\u4e00RS&#xff0c;\u5b9e\u73b0\u4f1a\u8bdd\u4fdd\u6301\u3002<\/p>\n<\/li>\n<li>\n<p>DH (\u76ee\u6807\u5730\u5740\u54c8\u5e0c)&#xff1a;\u6839\u636e\u8bf7\u6c42\u7684\u76ee\u6807IP&#xff08;\u5982\u4e0d\u540cURL&#xff09;\u8fdb\u884c\u54c8\u5e0c\u5206\u53d1\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u52a8\u6001\u7b97\u6cd5\u00a0(\u8003\u8651RS\u5f53\u524d\u8fde\u63a5\u6570\u7b49\u8d1f\u8f7d)<\/p>\n<ul>\n<li>\n<p>LC (\u6700\u5c11\u8fde\u63a5)&#xff1a;\u5c06\u8bf7\u6c42\u5206\u914d\u7ed9\u5f53\u524d\u6d3b\u52a8\u8fde\u63a5\u6570\u6700\u5c11\u7684RS\u3002<\/p>\n<\/li>\n<li>\n<p>WLC (\u52a0\u6743\u6700\u5c11\u8fde\u63a5)&#xff1a;\u5728LC\u57fa\u7840\u4e0a\u52a0\u5165\u6743\u91cd\u56e0\u7d20&#xff0c;\u662fLVS\u7684\u9ed8\u8ba4\u8c03\u5ea6\u7b97\u6cd5\u3002<\/p>\n<\/li>\n<li>\n<p>SED (\u6700\u77ed\u671f\u671b\u5ef6\u8fdf)&#xff1a;\u57fa\u4e8eWLC\u4f18\u5316&#xff0c;\u907f\u514d\u6743\u91cd\u4f4e\u7684RS\u957f\u671f\u7a7a\u95f2\u3002<\/p>\n<\/li>\n<li>\n<p>NQ (\u6c38\u4e0d\u6392\u961f)&#xff1a;\u5bf9SED\u7684\u6539\u8fdb&#xff0c;\u5982\u679c\u6709RS\u7a7a\u95f2&#xff0c;\u8bf7\u6c42\u76f4\u63a5\u5206\u914d\u8fc7\u53bb\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>1.5\u00a0ipvsadm\u00a0\u547d\u4ee4\u901f\u67e5<\/h5>\n<p>ipvsadm\u662f\u7528\u6237\u7a7a\u95f4\u7528\u6765\u914d\u7f6eLVS\u89c4\u5219\u7684\u5de5\u5177\u3002<\/p>\n<ul>\n<li>\n<p>\u96c6\u7fa4\u670d\u52a1\u7ba1\u7406<\/p>\n<p>ipvsadm -A|E -t|u|f &lt;\u670d\u52a1\u5730\u5740&gt; [-s \u8c03\u5ea6\u5668]  # \u6dfb\u52a0\/\u4fee\u6539\u865a\u62df\u670d\u52a1&#xff08;-t TCP, -u UDP, -f \u9632\u706b\u5899\u6807\u8bb0&#xff09;<br \/>\nipvsadm -D -t|u|f &lt;\u670d\u52a1\u5730\u5740&gt;                # \u5220\u9664\u865a\u62df\u670d\u52a1<br \/>\nipvsadm -C                                  # \u6e05\u7a7a\u6240\u6709\u914d\u7f6e\u89c4\u5219<br \/>\nipvsadm -S &gt; \/etc\/sysconfig\/ipvsadm         # \u4fdd\u5b58\u5f53\u524d\u89c4\u5219\u5230\u6587\u4ef6<br \/>\nipvsadm -R &lt; \/etc\/sysconfig\/ipvsadm         # \u4ece\u6587\u4ef6\u6062\u590d\u89c4\u5219<\/p>\n<\/li>\n<li>\n<p>\u771f\u5b9e\u670d\u52a1\u5668\u7ba1\u7406<\/p>\n<p>ipvsadm -a|e -t|u|f &lt;\u670d\u52a1\u5730\u5740&gt; -r &lt;RS\u5730\u5740&gt; [-g|i|m] [-w \u6743\u91cd]  # \u6dfb\u52a0\/\u4fee\u6539RS&#xff08;-g DR, -i TUN, -m NAT&#xff09;<br \/>\nipvsadm -d -t|u|f &lt;\u670d\u52a1\u5730\u5740&gt; -r &lt;RS\u5730\u5740&gt;                       # \u5220\u9664\u6307\u5b9aRS<br \/>\nipvsadm -L -n [&#8211;rate] [&#8211;stats] [&#8211;timeout]                  # \u67e5\u770b\u89c4\u5219\u3001\u8fde\u63a5\u6570\u3001\u7edf\u8ba1\u4fe1\u606f\u7b49<\/p>\n<\/li>\n<\/ul>\n<h4>\u4e8c\u3001LVS-NAT \u6a21\u5f0f\u96c6\u7fa4\u5b9e\u9a8c<\/h4>\n<h5>2.1 \u5b9e\u9a8c\u73af\u5883\u89c4\u5212<\/h5>\n<ul>\n<li>\n<p>VS (\u8c03\u5ea6\u5668)&#xff1a;\u53cc\u7f51\u5361<\/p>\n<ul>\n<li>\n<p>eth0:\u00a0172.25.254.100\u00a0(\u5bf9\u5916VIP&#xff0c;\u8fde\u63a5\u5ba2\u6237\u7aef\u7f51\u7edc)<\/p>\n<\/li>\n<li>\n<p>eth1:\u00a0192.168.0.100\u00a0(\u5bf9\u5185DIP&#xff0c;\u8fde\u63a5RS\u7f51\u7edc)<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>RS1 (\u771f\u5b9e\u670d\u52a1\u5668)&#xff1a;192.168.0.10&#xff0c;\u7f51\u5173\u6307\u5411\u00a0192.168.0.100&#xff0c;\u63d0\u4f9bWeb\u670d\u52a1\u3002<\/p>\n<\/li>\n<li>\n<p>RS2 (\u771f\u5b9e\u670d\u52a1\u5668)&#xff1a;192.168.0.20&#xff0c;\u7f51\u5173\u6307\u5411\u00a0192.168.0.100&#xff0c;\u63d0\u4f9bWeb\u670d\u52a1\u3002<\/p>\n<\/li>\n<li>\n<p>\u5ba2\u6237\u7aef&#xff1a;172.25.254.99&#xff0c;\u901a\u8fc7\u8bbf\u95eeVIP\u00a0172.25.254.100\u00a0\u6765\u6d4b\u8bd5\u3002<\/p>\n<\/li>\n<\/ul>\n<h5>2.2 \u5b9e\u9a8c\u6b65\u9aa4<\/h5>\n<li>\n<p>VS\u4e3b\u673a\u914d\u7f6e<\/p>\n<ul>\n<li>\n<p>\u914d\u7f6e\u4e24\u4e2a\u7f51\u5361\u7684IP\u5730\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u5f00\u542f\u5185\u6838IP\u8f6c\u53d1\u529f\u80fd&#xff1a;<\/p>\n<p>echo &#039;net.ipv4.ip_forward&#061;1&#039; &gt;&gt; \/etc\/sysctl.conf &amp;&amp; sysctl -p<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>RS1\u4e0eRS2\u914d\u7f6e<\/p>\n<ul>\n<li>\n<p>\u914d\u7f6e\u7f51\u5361IP\u5730\u5740&#xff0c;\u5e76\u8bbe\u7f6e\u7f51\u5173\u4e3a\u00a0192.168.0.100\u3002<\/p>\n<\/li>\n<li>\n<p>\u5b89\u88c5\u5e76\u542f\u52a8HTTP\u670d\u52a1&#xff0c;\u521b\u5efa\u5185\u5bb9\u4e0d\u540c\u7684\u6d4b\u8bd5\u9875\u9762\u3002<\/p>\n<p># RS1<br \/>\necho &#034;RS1 &#8211; 192.168.0.10&#034; &gt; \/var\/www\/html\/index.html<br \/>\n# RS2<br \/>\necho &#034;RS2 &#8211; 192.168.0.20&#034; &gt; \/var\/www\/html\/index.html<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5728VS\u4e0a\u914d\u7f6eLVS\u89c4\u5219<\/p>\n<p># \u6e05\u7a7a\u73b0\u6709\u89c4\u5219<br \/>\nipvsadm -C<br \/>\n# \u6dfb\u52a0\u4e00\u4e2aVIP\u7684TCP\u670d\u52a1&#xff0c;\u4f7f\u7528\u52a0\u6743\u8f6e\u8be2\u7b97\u6cd5<br \/>\nipvsadm -A -t 172.25.254.100:80 -s wrr<br \/>\n# \u6dfb\u52a0\u4e24\u53f0RS&#xff0c;\u4f7f\u7528NAT\u6a21\u5f0f(-m)&#xff0c;\u5e76\u8bbe\u7f6e\u6743\u91cd<br \/>\nipvsadm -a -t 172.25.254.100:80 -r 192.168.0.10:80 -m -w 1<br \/>\nipvsadm -a -t 172.25.254.100:80 -r 192.168.0.20:80 -m -w 1<br \/>\n# \u67e5\u770b\u914d\u7f6e\u7ed3\u679c<br \/>\nipvsadm -Ln<\/p>\n<\/li>\n<li>\n<p>\u9a8c\u8bc1\u4e0e\u6301\u4e45\u5316<\/p>\n<ul>\n<li>\n<p>\u5728\u5ba2\u6237\u7aef\u591a\u6b21\u8bbf\u95ee\u00a0http:\/\/172.25.254.100&#xff0c;\u5e94\u770b\u5230\u4e24\u4e2aRS\u9875\u9762\u8f6e\u8be2\u51fa\u73b0\u3002<\/p>\n<\/li>\n<li>\n<p>\u4fee\u6539RS1\u6743\u91cd\u4e3a2&#xff0c;\u518d\u6b21\u6d4b\u8bd5&#xff0c;RS1\u51fa\u73b0\u7684\u9891\u7387\u5e94\u7ea6\u4e3aRS2\u7684\u4e24\u500d\u3002<\/p>\n<\/li>\n<li>\n<p>\u4fdd\u5b58\u89c4\u5219\u5e76\u8bbe\u7f6e\u5f00\u673a\u81ea\u542f&#xff1a;<\/p>\n<p>ipvsadm -S &gt; \/etc\/sysconfig\/ipvsadm<br \/>\nsystemctl enable &#8211;now ipvsadm<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<h4>\u4e09\u3001LVS-DR \u6a21\u5f0f\u96c6\u7fa4\u5b9e\u9a8c<\/h4>\n<h5>3.1 \u5b9e\u9a8c\u73af\u5883\u89c4\u5212<\/h5>\n<ul>\n<li>\n<p>\u8def\u7531\u5668 (router)&#xff1a;\u8fde\u63a5\u5185\u5916\u7f51&#xff0c;\u5e76\u914d\u7f6eSNAT\u3002<\/p>\n<ul>\n<li>\n<p>eth0:\u00a0172.25.254.100\u00a0(\u8fde\u63a5\u5ba2\u6237\u7aef)<\/p>\n<\/li>\n<li>\n<p>eth1:\u00a0192.168.0.100\u00a0(\u8fde\u63a5VS\u548cRS)<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>VS (\u8c03\u5ea6\u5668)&#xff1a;eth0\u00a0\u914d\u7f6eDIP\u548cVIP\u3002<\/p>\n<ul>\n<li>\n<p>DIP:\u00a0192.168.0.50\/24<\/p>\n<\/li>\n<li>\n<p>VIP:\u00a0192.168.0.200\/24\u00a0(\u4f5c\u4e3a\u5730\u57402\u6dfb\u52a0)<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>RS1&#xff1a;192.168.0.10\/24&#xff0c;\u7f51\u5173\u6307\u5411\u00a0192.168.0.100&#xff0c;lo\u63a5\u53e3\u7ed1\u5b9aVIP\u3002<\/p>\n<\/li>\n<li>\n<p>RS2&#xff1a;192.168.0.20\/24&#xff0c;\u7f51\u5173\u6307\u5411\u00a0192.168.0.100&#xff0c;lo\u63a5\u53e3\u7ed1\u5b9aVIP\u3002<\/p>\n<\/li>\n<li>\n<p>\u5ba2\u6237\u7aef&#xff1a;172.25.254.99\/24&#xff0c;\u7f51\u5173\u6307\u5411\u00a0172.25.254.100\u3002<\/p>\n<\/li>\n<\/ul>\n<h5>3.2 \u5b9e\u9a8c\u6b65\u9aa4<\/h5>\n<li>\n<p>\u8def\u7531\u5668 (router) \u914d\u7f6e<\/p>\n<ul>\n<li>\n<p>\u914d\u7f6e\u53cc\u7f51\u5361IP&#xff0c;\u5f00\u542fIP\u8f6c\u53d1\u3002<\/p>\n<\/li>\n<li>\n<p>\u914d\u7f6eSNAT&#xff0c;\u786e\u4fdd\u5185\u7f51\u670d\u52a1\u5668\u80fd\u8bbf\u95ee\u5916\u7f51&#xff0c;\u5e76\u8ba9\u54cd\u5e94\u5305\u80fd\u6b63\u786e\u8fd4\u56de\u5ba2\u6237\u7aef\u3002<\/p>\n<p>iptables -t nat -A POSTROUTING -o eth0 -j SNAT &#8211;to-source 172.25.254.100<br \/>\niptables -t nat -A POSTROUTING -o eth1 -j SNAT &#8211;to-source 192.168.0.100<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u8c03\u5ea6\u5668 (vsnode) \u914d\u7f6e<\/p>\n<ul>\n<li>\n<p>\u914d\u7f6eDIP\u00a0192.168.0.50\u00a0\u548c \u7f51\u5173\u00a0192.168.0.100\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728\u540c\u4e00\u7f51\u5361\u4e0a\u6dfb\u52a0VIP\u00a0192.168.0.200\/24\u00a0\u4f5c\u4e3a\u8f85\u52a9\u5730\u5740&#xff08;\u914d\u7f6e\u65b9\u6cd5\u53c2\u8003\u539f\u6587\u4e2d\u7684address2&#xff09;\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>RS1 \/ RS2 \u914d\u7f6e<\/p>\n<ul>\n<li>\n<p>\u57fa\u7840\u7f51\u7edc&#xff1a;\u914d\u7f6eRIP\u00a0192.168.0.x&#xff0c;\u7f51\u5173\u6307\u5411\u8def\u7531\u5668\u00a0192.168.0.100\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728lo\u63a5\u53e3\u7ed1\u5b9aVIP&#xff1a;\u521b\u5efa\u4e00\u4e2aloopback\u7c7b\u578b\u7684\u8fde\u63a5&#xff0c;\u5e76\u6dfb\u52a0\u5730\u5740\u00a0192.168.0.200\/32\u3002<\/p>\n<p># \u793a\u4f8b&#xff1a;\u590d\u5236eth0\u914d\u7f6e\u5e76\u4fee\u6539\u4e3aloopback\u7c7b\u578b<br \/>\ncp \/etc\/NetworkManager\/system-connections\/eth0.nmconnection \/etc\/NetworkManager\/system-connections\/lo.nmconnection<br \/>\n# \u7f16\u8f91 lo.nmconnection&#xff0c;\u4fee\u6539 type&#061;loopback, interface-name&#061;lo, address1&#061;127.0.0.1\/8, address2&#061;192.168.0.200\/32<\/p>\n<\/li>\n<li>\n<p>ARP\u6291\u5236&#xff1a;\u8fd9\u662fDR\u6a21\u5f0f\u6210\u529f\u7684\u5173\u952e\u3002\u00a0\u5fc5\u987b\u914d\u7f6e&#xff0c;\u9632\u6b62RS\u7684\u7f51\u5361\u54cd\u5e94\u9488\u5bf9VIP\u7684ARP\u8bf7\u6c42\u3002<\/p>\n<p>echo 1 &gt; \/proc\/sys\/net\/ipv4\/conf\/all\/arp_ignore<br \/>\necho 2 &gt; \/proc\/sys\/net\/ipv4\/conf\/all\/arp_announce<br \/>\n# \u53ef\u5199\u5165 \/etc\/sysctl.conf \u6c38\u4e45\u751f\u6548<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5728VS\u4e0a\u914d\u7f6eLVS\u89c4\u5219 (\u4f7f\u7528DR\u6a21\u5f0f)<\/p>\n<p>ipvsadm -C<br \/>\nipvsadm -A -t 192.168.0.200:80 -s rr  # VIP\u4e3a192.168.0.200<br \/>\nipvsadm -a -t 192.168.0.200:80 -r 192.168.0.10:80 -g    # -g \u8868\u793aDR\u6a21\u5f0f<br \/>\nipvsadm -a -t 192.168.0.200:80 -r 192.168.0.20:80 -g<br \/>\nipvsadm -Ln<\/p>\n<\/li>\n<li>\n<p>\u9a8c\u8bc1<\/p>\n<ul>\n<li>\n<p>\u5728\u5ba2\u6237\u7aef\u00a0172.25.254.99\u00a0\u4e0a\u591a\u6b21\u8bbf\u95ee\u00a0http:\/\/192.168.0.200&#xff0c;\u5e94\u770b\u5230RS1\u548cRS2\u7684\u9875\u9762\u5185\u5bb9\u8f6e\u8be2\u51fa\u73b0\u3002\u53ef\u4ee5\u901a\u8fc7\u5728RS\u4e0a\u6293\u5305\u6216\u67e5\u770bVS\u7edf\u8ba1\u4fe1\u606f (ipvsadm -Ln &#8211;stats) \u6765\u786e\u8ba4\u6d41\u91cf\u5206\u53d1\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<h4>\u603b\u7ed3<\/h4>\n<p>LVS\u662f\u6784\u5efa\u9ad8\u6027\u80fdLinux\u670d\u52a1\u5668\u96c6\u7fa4\u7684\u5f3a\u5927\u5de5\u5177\u3002\u5728\u751f\u4ea7\u73af\u5883\u4e2d&#xff0c;DR\u6a21\u5f0f\u56e0\u5176\u5353\u8d8a\u7684\u6027\u80fd\u800c\u5e94\u7528\u6700\u5e7f&#xff0c;\u4f46\u5176\u914d\u7f6e\u4e5f\u76f8\u5bf9\u590d\u6742&#xff0c;\u5173\u952e\u5728\u4e8eARP\u6291\u5236\u3002NAT\u6a21\u5f0f\u914d\u7f6e\u7b80\u5355&#xff0c;\u9002\u5408\u5c0f\u578b\u6216\u5bf9\u6027\u80fd\u8981\u6c42\u4e0d\u9ad8\u7684\u573a\u666f\u3002\u638c\u63e1\u00a0ipvsadm\u00a0\u547d\u4ee4\u548c\u56db\u79cd\u6a21\u5f0f\u7684\u539f\u7406&#xff0c;\u662f\u7075\u6d3b\u8fd0\u7528LVS\u7684\u57fa\u7840\u3002<\/p>\n<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b14\u8bb0\u8bf4\u660e&#xff1a;\u672c\u6587\u6863\u65e8\u5728\u7cfb\u7edf\u6027\u5730\u68b3\u7406LVS\u7684\u6838\u5fc3\u6982\u5ff5\u3001\u5de5\u4f5c\u539f\u7406\u3001\u8c03\u5ea6\u7b97\u6cd5&#xff0c;\u5e76\u63d0\u4f9bNAT\u4e0eDR\u6a21\u5f0f\u7684\u8be6\u7ec6\u5b9e\u9a8c\u6b65\u9aa4&#xff0c;\u4f5c\u4e3a\u5b66\u4e60\u548c\u914d\u7f6eLVS\u7684\u53c2\u8003\u624b\u518c\u3002\u4e00\u3001LVS 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