{"id":1173,"date":"2021-05-27T14:37:18","date_gmt":"2021-05-27T06:37:18","guid":{"rendered":"https:\/\/www.buyao007.icu\/?p=1173"},"modified":"2022-04-07T15:02:37","modified_gmt":"2022-04-07T07:02:37","slug":"1-lvs%e5%9b%9b%e5%b1%82%e8%b4%9f%e8%bd%bd%e5%9d%87%e8%a1%a1","status":"publish","type":"post","link":"https:\/\/www.buyao007.icu\/?p=1173","title":{"rendered":"1.LVS\u56db\u5c42\u8d1f\u8f7d\u5747\u8861"},"content":{"rendered":"\n<p>\u5b59\u5bcc\u9633\uff0c \u6c5f\u6e56\u4eba\u79f0\u6ca1\u4eba\u79f0\u3002\u591a\u5e74\u4e92\u8054\u7f51\u8fd0\u7ef4\u5de5\u4f5c\u7ecf\u9a8c\uff0c\u66fe\u8d1f\u8d23\u8fc7\u5b59\u5e03\u65af\u5927\u89c4\u6a21\u96c6\u7fa4\u67b6\u6784\u81ea\u52a8\u5316\u8fd0\u7ef4\u7ba1\u7406\u5de5\u4f5c\u3002\u64c5\u957fWeb\u96c6\u7fa4\u67b6\u6784\u4e0e\u81ea\u52a8\u5316\u8fd0\u7ef4\uff0c\u66fe\u8d1f\u8d23\u56fd\u5185\u67d0\u5927\u578b\u535a\u5ba2\u7f51\u7ad9\u8fd0\u7ef4\u5de5\u4f5c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"toc_0\">1.lvs\u5de5\u4f5c\u6a21\u5f0f<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>dr direct routing \u76f4\u63a5\u8def\u7531\u6a21\u5f0f nat tun \u96a7\u9053 full nat \u5b8c\u5168nat\u6a21\u5f0f<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>CIP<\/td><td>client ip<\/td><td>\u5ba2\u6237\u7aefip\u5730\u5740<\/td><\/tr><tr><td>VIP<\/td><td>&nbsp;<\/td><td>\u865a\u62dfip<\/td><\/tr><tr><td>DIP<\/td><td>director<\/td><td>\u8d1f\u8f7d\u5747\u8861ip<\/td><\/tr><tr><td>RS\u670d\u52a1\u5668<\/td><td>real server<\/td><td>\u771f\u5b9e\u670d\u52a1\u5668\uff0c\u5904\u7406\u7528\u6237\u8bf7\u6c42<\/td><\/tr><tr><td>RIP<\/td><td>real server ip<\/td><td>&nbsp;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"toc_0\">2.lvs-dr \u6a21\u5f0f\u4ecb\u7ecd<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>\u7279\u70b9\nlvs dr\u6a21\u5f0f\u4e2dlvs\u53ea\u8d1f\u8d23\u8f6c\u53d1 \u5e76\u4fee\u6539\u7528\u6237\u8bf7\u6c42\u7684\u76ee\u6807mac\u5730\u5740 dmact\nlvs dr\u6a21\u5f0f\u4e2d\u54cd\u5e94\u548c\u5904\u7406 \u662f\u540e\u7aefrs\u670d\u52a1\u5668\u5904\u7406 \u5904\u7406\u76f4\u63a5\u54cd\u5e94\u7ed9\u7528\u6237.\nlvs vip\u516c\u7f51ip rs\u670d\u52a1\u5668\u4e5f\u8981\u6709\u516c\u7f51ip \nlvs dr \u652f\u6301\u66f4\u9ad8\u5e76\u53d1(\u51e0\u4e07 \u51e0\u5341\u4e07) nginx(1w)\nlvs \u548c\u540e\u7aefrs\u670d\u52a1\u5668 \u5fc5\u987b\u8981\u5728\u540c1\u4e2a\u5c40\u57df\u7f51 \u6d89\u53ca\u5230arp\u89e3\u6790\n\u7528\u6237\u8bf7\u6c42\u8fc7\u6765\u7684\u7aef\u53e3 \u65e0\u6cd5\u4fee\u6539\u7684. \u7528\u6237\u7684\u8bf7\u6c42\u662f\u4ec0\u4e48\u7aef\u53e3 \u540e\u7aefrs\u670d\u52a1\u5668\u5c31\u8981\u5f00\u7aef\u53e3\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"toc_0\">3.lvs-nat\u6a21\u5f0f\u4ecb\u7ecd<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>lvs\u4e0ers\u670d\u52a1\u5668\u53ef\u4ee5\u4e0d\u5728\u540c\u4e00\u5c40\u57df\u7f51\nnat\u6a21\u5f0f \u6d41\u91cf\u521d\u5165\u90fd\u8981\u7ecf\u8fc7 lvs \u6548\u7387 \u6027\u80fd\u4e0d\u9ad8\n\u7aef\u53e3\u4e5f\u53ef\u4ee5\u4e0d\u540c\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"toc_0\">4.lvs-dr\u6a21\u5f0f\u90e8\u7f72\u5b9e\u64cd<\/h2>\n\n\n\n<p><strong><em>1.\u73af\u5883\u51c6\u5907<\/em><\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>\u4e3b\u673a<\/td><td>\u670d\u52a1<\/td><td>ip<\/td><\/tr><tr><td>lb01<\/td><td>lvs<\/td><td>10.0.0.5<\/td><\/tr><tr><td>lb02<\/td><td>lvs<\/td><td>10.0.0.6<\/td><\/tr><tr><td>vip<\/td><td>&nbsp;<\/td><td>10.0.0.3<\/td><\/tr><tr><td>web01<\/td><td>nginx<\/td><td>10.0.0.7<\/td><\/tr><tr><td>web02<\/td><td>nginx<\/td><td>10.0.0.8<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<pre class=\"wp-block-code\"><code>lb01#\n&#91;root@lb01 ~]# yum -y install ipvsadm.x86_64\n#web02\uff0cweb01\u914d\u7f6e\u76f8\u540c  \n&#91;root@web01 ~]# cat \/etc\/nginx\/conf.d\/lvs.com.conf \nserver {\n   listen 80;\n   server_name   lvs.com;\n   root \/code\/lvs;\n   location \/ {\n   index index.html ;\n   }\n}\n&#91;root@web01 ~]# curl -H Host:lvs.com   172.16.1.7\nlvs web01 10.0.0.7 172.16.1.7\n&#91;root@web01 ~]# curl -H Host:lvs.com   172.16.1.8\nlvs web02 10.0.0.8 172.16.1.8\n<\/code><\/pre>\n\n\n\n<p><strong><em>2.lvs-dr\u6a21\u5f0f\u914d\u7f6e\u6d41\u7a0b<\/em><\/strong><\/p>\n\n\n\n<p>1.lvs\u670d\u52a1\u7aef\u914d\u7f6e<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><strong>#01.\u624b\u52a8\u6dfb\u52a0vip,\u540e\u9762\u662f\u7531keepalived\u751f\u6210<\/strong>\nip addr add 10.0.0.3\/24 dev eth0 label eth0:0\n<strong>#02. \u67e5\u770blvs\u89c4\u5219<\/strong>\n&#91;root@lb01 ~]# ipvsadm \nIP Virtual Server version 1.2.1 (size=4096)\nProt LocalAddress:Port Scheduler Flags\n  -&gt; RemoteAddress:Port           Forward Weight ActiveConn InActConn\n<strong>#03. \u6e05\u7a7a\u89c4\u5219,\u8981\u5907\u4efd<\/strong>\nipvsadm -C     #clear\u6e05\u9664 #iptables -F flush \n<strong>#04. \u8bbe\u7f6e tcp\u8d85\u65f6\u65f6\u95f4<\/strong>\nipvsadm --set 30 5 60   #\u8bbe\u7f6etcp \u8d85\u65f6\u65f6\u95f4\n<strong>#05. \u6dfb\u52a0\u89c4\u5219<\/strong>\n&#91;root@lb01 ~]# ipvsadm -ln #\u67e5\u770b\u89c4\u5219\nIP Virtual Server version 1.2.1 (size=4096)\nProt LocalAddress:Port Schedu -&gt; RemoteAddress:Port    Forward Weight ActiveConn InActConn\n#\u6dfb\u52a0\u89c4\u5219 upstream \nipvsadm -A -t 10.0.0.3:80 -s wrr -p 20   \n#-A --add-service \u521b\u5efa\u6c60\u5858  \n#-t --tcp-service tcp\u534f\u8bae\n#10.0.0.3:80 \u7ec4\u540d\u79f0\n#-s scheduler \u8f6e\u8be2\u7b97\u6cd5   wrr weight \u52a0\u6743\u8f6e\u8be2   rr lc wlc \n#-p persistent \u4f1a\u8bdd\u4fdd\u6301\u65f6\u95f4  \n#\u6dfb\u52a0\u89c4\u5219 \u5411upsteam\u4e2d\u6dfb\u52a0server  \nipvsadm -a -t 10.0.0.3:80 -r 10.0.0.7:80 -g -w 1\nipvsadm -a -t 10.0.0.3:80 -r 10.0.0.8:80 -g -w 1\n#-a \u6dfb\u52a0 rs\u670d\u52a1\u5668  \n#-t tcp\u534f\u8bae\n#-r \u6307\u5b9ars\u670d\u52a1\u5668ip\n#-g --gatewaying dr\u6a21\u5f0f \u9ed8\u8ba4\u7684\n#-w \u6743\u91cd\n&#91;root@lb01 ~]# ipvsadm -ln\nIP Virtual Server version 1.2.1 (size=4096)\nProt LocalAddress:Port Scheduler Flags\n  -&gt; RemoteAddress:Port           Forward Weight ActiveConn InActConn\nTCP  10.0.0.3:80 wrr persistent 20\n  -&gt; 10.0.0.7:80                 Route   1      0          0         \n  -&gt; 10.0.0.8:80                 Route   1      0          0\n<\/code><\/pre>\n\n\n\n<p>2.web\u670d\u52a1\u5668\u7aef\u914d\u7f6e<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#<strong>lo\u7f51\u5361\u7ed1\u5b9a vip <\/strong>\nip addr add 10.0.0.3\/32 dev lo label lo:1 \n&#91;root@web01 ~]# cat \/etc\/sysconfig\/network-scripts\/ifcfg-lo:1\nDEVICE=lo:1\nIPADDR=10.0.0.3\nNETMASK=255.255.255.255\nONBOOT=yes\nNAME=loopback\n&#91;root@web01 ~]# systemctl restart network \n&#91;root@web02 ~]# ip a s lo\n1: lo: &lt;LOOPBACK,UP,LOWER_UP&gt; mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000\n   link\/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00\n   inet 127.0.0.1\/8 scope host lo\n       valid_lft forever preferred_lft forever\n   inet 10.0.0.3\/32 brd 10.0.0.3 scope global lo:1\n       valid_lft forever preferred_lft forever\n   inet6 ::1\/128 scope host \n       valid_lft forever preferred_lft forever\n<strong>#\u6291\u5236arp\u89e3\u6790<\/strong>\ncat &gt;&gt;\/etc\/sysctl.conf&lt;&lt;EOF\nnet.ipv4.conf.all.arp_ignore = 1\nnet.ipv4.conf.all.arp_announce = 2\nnet.ipv4.conf.lo.arp_ignore = 1\nnet.ipv4.conf.lo.arp_announce = 2\nEOF\nsysctl -p\n<\/code><\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b59\u5bcc\u9633\uff0c \u6c5f\u6e56\u4eba\u79f0\u6ca1\u4eba\u79f0\u3002\u591a\u5e74\u4e92\u8054\u7f51\u8fd0\u7ef4\u5de5\u4f5c\u7ecf\u9a8c\uff0c\u66fe\u8d1f\u8d23\u8fc7\u5b59\u5e03\u65af\u5927\u89c4\u6a21\u96c6\u7fa4\u67b6\u6784\u81ea\u52a8\u5316\u8fd0\u7ef4\u7ba1\u7406\u5de5\u4f5c\u3002\u64c5\u957fWeb\u96c6 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[],"_links":{"self":[{"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/posts\/1173"}],"collection":[{"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1173"}],"version-history":[{"count":2,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/posts\/1173\/revisions"}],"predecessor-version":[{"id":1176,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/posts\/1173\/revisions\/1176"}],"wp:attachment":[{"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1173"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1173"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1173"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}