{"id":9312,"date":"2024-03-28T23:56:55","date_gmt":"2024-03-28T15:56:55","guid":{"rendered":"https:\/\/egonlin.com\/?p=9312"},"modified":"2024-05-24T00:01:40","modified_gmt":"2024-05-23T16:01:40","slug":"lvs-dr%e6%a8%a1%e5%bc%8f%e9%85%8d%e7%bd%ae%e7%a4%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=9312","title":{"rendered":"lvs-dr\u6a21\u5f0f\u914d\u7f6e\u793a\u4f8b"},"content":{"rendered":"

\u4e00\u3001\u5de5\u4f5c\u539f\u7406\u590d\u4e60<\/h1>\n

1\u3001\u5ba2\u6237\u7aef\u53d1\u9001\u8bf7\u6c42\u5230 Director Server (\u8d1f\u8f7d\u5747\u8861\u5668 DS\uff09\uff0c\u8bf7\u6c42\u7684\u6570\u636e\u62a5\u6587\uff08\u6e90IP\u662fCIP\uff0c\u76ee\u6807IP\u662fVIP\uff09\u5230\u8fbe\u5185\u6838\u7a7a\u95f4\uff0cDirector Server \u548c Real Server \u5728\u540c\u4e00\u4e2a\u7f51\u7edc\u4e2d\uff0c\u6570\u636e\u901a\u8fc7\u4e8c\u5c42\u6570\u636e\u94fe\u8def\u5c42\u6765\u4f20\u8f93<\/p>\n

2\u3001\u5185\u6838\u7a7a\u95f4\u5224\u65ad\u6570\u636e\u5305\u7684\u76ee\u6807IP\u662f\u672c\u673aIP\uff0c\u6b64\u65f6LVS\u6bd4\u5bf9\u6570\u636e\u5305\u8bf7\u6c42\u7684\u670d\u52a1\u662f\u5426\u662f\u96c6\u7fa4\u670d\u52a1\uff0c\u662f\u96c6\u7fa4\u670d\u52a1\u5c31\u91cd\u65b0\u5c01\u88c5\u6570\u636e\u5305\u3002\u4fee\u6539\u6e90 MAC \u5730\u5740\u4e3a Director Server \u7684 MAC \u5730\u5740\uff0c\u4fee\u6539\u76ee\u6807 MAC \u5730\u5740\u4e3a Real Server \u7684 MAC \u5730\u5740\uff0c\u6e90IP\u5730\u5740\u4e0e\u76ee\u6807IP\u5730\u5740\u6ca1\u6709\u6539\u53d8\uff0c\u7136\u540e\u5c06\u6570\u636e\u5305\u53d1\u9001\u7ed9 Real Server 1<\/p>\n

3\u3001\u5230\u8fbe Real Server \u7684\u8bf7\u6c42\u62a5\u6587\u7684 MAC \u5730\u5740\u662f\u81ea\u8eab\u7684 MAC \u5730\u5740\uff0c\u5c31\u63a5\u6536\u6b64\u62a5\u6587\u3002\u6570\u636e\u5305\u91cd\u65b0\u5c01\u88c5\u62a5\u6587\uff08\u6e90IP\u5730\u5740\u4e3aVIP\uff0c\u76ee\u6807IP \u4e3aCIP\uff09\uff0c\u5c06\u54cd\u5e94\u62a5\u6587\u901a\u8fc7IO\u63a5\u53e3\u4f20\u9001\u7ed9\u7269\u7406\u7f51\u5361\u7136\u540e\u5411\u5916\u53d1\u51fa\uff0cReal server 1 \u76f4\u63a5\u5c06\u54cd\u5e94\u62a5\u6587\u4f20\u9001\u5230\u5ba2\u6237\u7aef<\/p>\n

\"\"<\/div><\/p>\n

\u4e8c\u3001lvs\u56db\u5c42\u76f4\u63a5\u4ee3\u7406\u5e94\u7528<\/h1>\n

lvs\u56db\u5c42\u2013\u4ee3\u7406\u5e94\u7528\uff1areal server\u662f\u5e94\u7528\u670d\u52a1\u5668<\/p>\n

 <\/p>\n

1\u3001\u73af\u5883\u51c6\u5907\uff08\u6240\u6709\u673a\u5668\uff09<\/h2>\n
setenforce 0\r\n\r\nsystemctl stop firewalld\r\n\r\n\u914d\u7f6e\u9759\u6001ip\r\n\r\n\u914d\u7f6e\u65f6\u95f4\u540c\u6b65<\/pre>\n
2\u3001\u4e3b\u673a\u89c4\u5212<\/h2>\n
VIP\uff1a192.168.71.200\r\n\r\nDIP\uff1a192.168.71.115\r\n\r\nweb01(nginx+\u9759\u6001\u9875\u9762): 192.168.71.112:8080\r\nweb02(nginx+\u9759\u6001\u9875\u9762): 192.168.71.113:8080\r\nweb03(nginx+\u9759\u6001\u9875\u9762): 192.168.71.114:8080<\/pre>\n
3\u3001lvs\u56db\u5c42\u8d1f\u8f7d\u5747\u8861\u90e8\u7f72\uff08\u5728192.168.71.115\u8fd9\u53f0\u673a\u5668\u4e0a\u90e8\u7f72\uff09<\/h2>\n
3.1 \u5b89\u88c5ipvs<\/p>\n
# 1\u3001\u5b89\u88c5ipvsadm\u7b49\u76f8\u5173\u5de5\u5177\r\nyum -y install ipvsadm ipset sysstat conntrack libseccomp \r\n\r\n# 2\u3001\u914d\u7f6e\u52a0\u8f7d\r\ncat > \/etc\/sysconfig\/modules\/ipvs.modules <<\"EOF\" \r\n#!\/bin\/bash \r\nipvs_modules=\"ip_vs ip_vs_lc ip_vs_wlc ip_vs_rr ip_vs_wrr ip_vs_lblc ip_vs_lblcr ip_vs_dh ip_vs_sh ip_vs_fo ip_vs_nq ip_vs_sed ip_vs_ftp nf_conntrack\" \r\n\r\nfor kernel_module in ${ipvs_modules}; \r\ndo \r\n\/sbin\/modinfo -F filename ${kernel_module} > \/dev\/null 2>&1 \r\nif [ $? -eq 0 ]; then \r\n\/sbin\/modprobe ${kernel_module} \r\nfi \r\ndone \r\nEOF\r\n\r\nchmod 755 \/etc\/sysconfig\/modules\/ipvs.modules && bash \/etc\/sysconfig\/modules\/ipvs.modules && lsmod | grep ip_vs<\/pre>\n
3.2 \u4e3a\u56db\u5c42\u8d1f\u8f7d\u5747\u8861\u673a\u5668\u6dfb\u52a0\u4e00\u4e2avip<\/p>\n
\n
#1\u3001\u9700\u8981\u7279\u522b\u6ce8\u610f\u7684\u662f\uff0c\u865a\u62dfip\u5730\u5740\u7684\u5e7f\u64ad\u5730\u5740\u662f\u5b83\u672c\u8eab\uff0c\u5b50\u7f51\u63a9\u7801\u662f255.255.255.255\u3002\r\nifconfig ens36:0 192.168.71.200 broadcast 192.168.71.200 netmask 255.255.255.255 up\r\n\r\n#2\u3001\u6dfb\u52a0\u8def\u7531\u89c4\u5219\r\nroute add -host 192.168.71.200 dev ens36:0\r\n\r\n#3\u3001\u542f\u7528\u7cfb\u7edf\u7684\u5305\u8f6c\u53d1\u529f\u80fd\r\necho \"1\" >\/proc\/sys\/net\/ipv4\/ip_forward<\/pre>\n<\/div>\n
3.3 \u6dfb\u52a0\u8d1f\u8f7d\u5747\u8861\u89c4\u5219<\/div>\n
\n
# \u5f3a\u8c03\u5f3a\u8c03\u5f3a\u8c03\uff1aLVS\u672c\u8eab\u4e0d\u652f\u6301\u5c06\u8bf7\u6c42\u7684\u76ee\u6807\u7aef\u53e3\u4ece\u4e00\u4e2a\u7aef\u53e3\u8f6c\u6362\u5230\u53e6\u4e00\u4e2a\u7aef\u53e3\uff0c\u6240\u4ee5<\/span>\r\n# ipvsadm -a -t 192.168.71.200:6666 -r 192.168.71.112:8080 -g # \u8fd9\u79cd\u6dfb\u52a0\u65b9\u6cd5\u662f\u9519\u8bef\u7684\uff0c\u5fc5\u987b\u7aef\u53e3\u4e00\u81f4<\/span>\r\n\r\nipvsadm -C #\u6e05\u9664\u5185\u6838\u865a\u62df\u670d\u52a1\u5668\u8868\u4e2d\u7684\u6240\u6709\u8bb0\u5f55\r\nipvsadm -A -t 192.168.71.200:8080 -s rr # -s rr\u8868\u793a\u91c7\u7528\u8f6e\u8be2\u7b56\u7565\u3002\r\nipvsadm -a -t 192.168.71.200:8080 -r 192.168.71.112:8080 -g #\u6dfb\u52a0\u670d\u52a1\u5668\u8282\u70b9\uff0c-g\u8868\u793a\u6307\u5b9aLVS \u7684\u5de5\u4f5c\u6a21\u5f0f\u4e3a\u76f4\u63a5\u8def\u7531\u6a21\u5f0f\r\nipvsadm -a -t 192.168.71.200:8080 -r 192.168.71.113:8080 -g #\u6dfb\u52a0\u670d\u52a1\u5668\u8282\u70b9\r\nipvsadm -a -t 192.168.71.200:8080 -r 192.168.71.114:8080 -g #\u6dfb\u52a0\u670d\u52a1\u5668\u8282\u70b9\r\nipvsadm -Ln #\u67e5\u770b\u8282\u70b9\u72b6\u6001\uff0c\u52a0\u4e2a\u201c-n\u201d\u5c06\u4ee5\u6570\u5b57\u5f62\u5f0f\u663e\u793a\u5730\u5740\u3001\u7aef\u53e3\u4fe1\u606f<\/pre>\n<\/div>\n
4\u3001RS\u914d\u7f6e\uff08\u4e09\u53f0web\u670d\u52a1\u5668\u4e0a\uff09<\/h2>\n
4.1 \u5728\u672c\u5730lo\u7f51\u5361\u4e0a\u914d\u7f6e\u4e0avip\u5730\u5740<\/div>\n
ifconfig lo:0 192.168.71.200 broadcast 192.168.71.200 netmask 255.255.255.255 up \r\nroute add -host 192.168.71.200 dev lo:0<\/pre>\n
4.2 \u5173\u95edarp\u89e3\u6790<\/p>\n
echo \"1\" >\/proc\/sys\/net\/ipv4\/conf\/lo\/arp_ignore\r\necho \"1\" >\/proc\/sys\/net\/ipv4\/conf\/all\/arp_ignore\r\n\r\necho \"2\" >\/proc\/sys\/net\/ipv4\/conf\/lo\/arp_announce\r\necho \"2\" >\/proc\/sys\/net\/ipv4\/conf\/all\/arp_announce\r\n\r\n\r\ncat >> \/etc\/sysctl.conf << EOF\r\nnet.ipv4.ip_forward=1\r\nnet.ipv4.conf.lo.arp_ignore=1\r\nnet.ipv4.conf.all.arp_ignore=1\r\nnet.ipv4.conf.lo.arp_announce=2\r\nnet.ipv4.conf.all.arp_announce=2\r\nEOF\r\n\r\nsysctl -p #\u4f7f\u7528\u4fee\u6539\u751f\u6548<\/pre>\n
\u914d\u7f6e\u6ce8\u89e3\uff1a<\/p>\n
arp_announce \uff1a\u5b9a\u4e49\u4e0d\u540c\u7ea7\u522b\uff1a\u5f53ARP\u8bf7\u6c42\u901a\u8fc7\u67d0\u4e2a\u7aef\u53e3\u8fdb\u6765\u662f\u5426\u5229\u7528\u8fd9\u4e2a\u63a5\u53e3\u6765\u56de\u5e94\u3002<\/p>\n
0 -\u5229\u7528\u672c\u5730\u7684\u4efb\u4f55\u5730\u5740\uff0c\u4e0d\u7ba1\u914d\u7f6e\u5728\u54ea\u4e2a\u63a5\u53e3\u4e0a\u53bb\u54cd\u5e94ARP\u8bf7\u6c42\uff1b<\/p>\n
1 – \u907f\u514d\u4f7f\u7528\u53e6\u5916\u4e00\u4e2a\u63a5\u53e3\u4e0a\u7684mac\u5730\u5740\u53bb\u54cd\u5e94ARP\u8bf7\u6c42\uff1b<\/p>\n
2 – \u5c3d\u53ef\u80fd\u4f7f\u7528\u80fd\u591f\u5339\u914d\u5230ARP\u8bf7\u6c42\u7684\u6700\u4f73\u5730\u5740\u3002<\/p>\n
arp_ignore\uff1a\u5f53ARP\u8bf7\u6c42\u53d1\u8fc7\u6765\u540e\u53d1\u73b0\u81ea\u5df1\u6b63\u662f\u8bf7\u6c42\u7684\u5730\u5740\u662f\u5426\u54cd\u5e94\uff1b<\/p>\n
0 – \u5229\u7528\u672c\u5730\u7684\u4efb\u4f55\u5730\u5740\uff0c\u4e0d\u7ba1\u914d\u7f6e\u5728\u54ea\u4e2a\u63a5\u53e3\u4e0a\u53bb\u54cd\u5e94ARP\u8bf7\u6c42\uff1b<\/p>\n
1 – \u54ea\u4e2a\u63a5\u53e3\u4e0a\u63a5\u53d7ARP\u8bf7\u6c42\uff0c\u5c31\u4ece\u54ea\u4e2a\u7aef\u53e3\u4e0a\u56de\u5e94\u3002<\/p>\n
 <\/p>\n
4.3\u00a0 \u4e09\u4e2aweb\u4e0a\u90e8\u7f72<\/p>\n
 \u90e8\u7f72nginx\r\n\r\n\u7136\u540e\u653e\u7f6e\u6587\u4ef6\uff1a\/usr\/share\/nginx\/html\/1.txt # \u5206\u522b\u5199\u5165web01\u3001web02\u3001web03<\/pre>\n
 <\/p>\n
5\u3001\u6d4b\u8bd5\u8bbf\u95ee<\/h2>\n
\u65b9\u5f0f\u4e00\uff1a\u6d4f\u89c8\u5668\u8bbf\u95ee\u6d4b\u8bd5<\/p>\n
\u5148\u628a\u6240\u6709web\u4e0a\u7684nginx\u914d\u7f6e\u91cc\u7684keepalive_timeout\u90fd\u8bbe\u7f6e\u4e3a0\uff0c\u5426\u5219\u4f1a\u56e0\u4e3a\u957f\u8fde\u63a5\u800c\u7ecf\u5e38\u8bbf\u95ee\u5230\u4e00\u4e2a<\/p>\n
http {\r\n    keepalive_timeout   0;\r\n    \u3002\u3002\u3002\u3002\u3002\u3002\r\n}<\/pre>\n
\"\"<\/div><\/p>\n
 <\/p>\n
\u65b9\u5f0f\u4e8c\uff1a\u5728\u56db\u5c42\u8d1f\u8f7d\u5747\u8861\u4ee5\u5916\u7684\u4efb\u4e00\u53f0\u673a\u5668\u4e0a<\/p>\n
[root@db ~]# curl http:\/\/192.168.71.200:8080\/1.txt\r\n---------------------web033333333333333333333333333333333333\r\n[root@db ~]# curl http:\/\/192.168.71.200:8080\/1.txt\r\n-------------web02222222222222222222\r\n[root@db ~]# curl http:\/\/192.168.71.200:8080\/1.txt\r\n--------------------web01111111111111111\r\n<\/pre>\n
 <\/p>\n
\u4e09\u3001lvs\u56db\u5c42+nginx\u4e03\u5c42+\u5e94\u7528<\/h1>\n
lvs\u56db\u5c42\u2013\u4ee3\u7406\u4e03\u5c42\u8d1f\u8f7d\u5747\u8861nginx\u2014\u4ee3\u7406web\u670d\u52a1\u5668\uff1areal server\u662f\u4e03\u5c42\u8d1f\u8f7d\u5747\u8861nginx\uff0c\u9700\u8981\u5728\u5b83\u7684lo\u4e0a\u914d\u7f6evip<\/p>\n
 <\/p>\n
 <\/p>\n
1\u3001\u73af\u5883\u51c6\u5907\uff08\u6240\u6709\u673a\u5668\uff09<\/h2>\n
\u540c\u4e0a<\/p>\n
2\u3001\u4e3b\u673a\u89c4\u5212<\/h2>\n
# 1\u3001\u56db\u5c42\r\nVIP\uff1a192.168.71.200\r\n\r\nDIP\uff1a192.168.71.115\r\n\r\n\r\n# 2\u3001\u4e24\u53f0\u4e03\u5c42\r\n\u4e03\u5c4201\uff08\u7528nginx\u505a\u4e03\u5c42\u8d1f\u8f7d\uff09\uff1a192.168.71.116:8081\r\n\u4e03\u5c4202\uff08\u7528nginx\u505a\u4e03\u5c42\u8d1f\u8f7d\uff09\uff1a192.168.71.111:8081\r\n\r\n# 3\u3001\u4e09\u53f0web\r\nweb01(nginx+\u9759\u6001\u9875\u9762): 192.168.71.112:8080\r\nweb02(nginx+\u9759\u6001\u9875\u9762): 192.168.71.113:8080\r\nweb03(nginx+\u9759\u6001\u9875\u9762): 192.168.71.114:8080<\/pre>\n
\u4e24\u53f0\u4e03\u5c42\u4e00\u6837\u7684\u914d\u7f6e\uff0c\u4ee3\u7406\u4e09\u53f0web<\/p>\n
[root@lb01 ~]# cat \/etc\/nginx\/nginx.conf\r\nevents {\r\n    worker_connections 1024;\r\n}\r\nhttp {\r\n    upstream web_app_servers {\r\n        server 192.168.71.112:8080 weight=1;\r\n        server 192.168.71.113:8080 weight=1;\r\n        server 192.168.71.114:8080 weight=1;\r\n    }\r\n    server {\r\n        listen 8081; # \u5f3a\u8c03\uff1a\u8fd9\u91cc\u4e2a\u7684\u914d\u7f6e\u76f4\u63a5\u5c31\u76d1\u542c\u7aef\u53e3\uff0c\u6211\u4eec\u4e4b\u524d\u7684\u8bfe\u7a0b\u4e2d\u5728\u5176\u672b\u5c3e\u52a0\u7684proxy_protocol\u4e00\u5b9a\u8981\u53bb\u6389<\/span>\r\n        location \/ {\r\n            proxy_pass http:\/\/web_app_servers;\r\n        }\r\n    }\r\n}\r\n<\/pre>\n
3\u3001lvs\u56db\u5c42\u8d1f\u8f7d\u5747\u8861\u90e8\u7f72\uff08\u5728192.168.71.115\u8fd9\u53f0\u673a\u5668\u4e0a\u90e8\u7f72\uff09<\/h2>\n
3.1 \u5b89\u88c5ipvs\uff08\u4e0e\u7b2c\u4e8c\u7ae0\u8282\u7684\u914d\u7f6e\u4e00\u6a21\u4e00\u6837\uff09<\/span><\/p>\n
# 1\u3001\u5b89\u88c5ipvsadm\u7b49\u76f8\u5173\u5de5\u5177\r\nyum -y install ipvsadm ipset sysstat conntrack libseccomp \r\n\r\n# 2\u3001\u914d\u7f6e\u52a0\u8f7d\r\ncat > \/etc\/sysconfig\/modules\/ipvs.modules <<\"EOF\" \r\n#!\/bin\/bash \r\nipvs_modules=\"ip_vs ip_vs_lc ip_vs_wlc ip_vs_rr ip_vs_wrr ip_vs_lblc ip_vs_lblcr ip_vs_dh ip_vs_sh ip_vs_fo ip_vs_nq ip_vs_sed ip_vs_ftp nf_conntrack\" \r\n\r\nfor kernel_module in ${ipvs_modules}; \r\ndo \r\n\/sbin\/modinfo -F filename ${kernel_module} > \/dev\/null 2>&1 \r\nif [ $? -eq 0 ]; then \r\n\/sbin\/modprobe ${kernel_module} \r\nfi \r\ndone \r\nEOF\r\n\r\nchmod 755 \/etc\/sysconfig\/modules\/ipvs.modules && bash \/etc\/sysconfig\/modules\/ipvs.modules && lsmod | grep ip_vs<\/pre>\n
3.2 \u4e3a\u56db\u5c42\u8d1f\u8f7d\u5747\u8861\u673a\u5668\u6dfb\u52a0\u4e00\u4e2avip\uff08\u4e0e\u7b2c\u4e8c\u7ae0\u8282\u7684\u914d\u7f6e\u4e00\u6a21\u4e00\u6837\uff09<\/span><\/p>\n
\n
#1\u3001\u9700\u8981\u7279\u522b\u6ce8\u610f\u7684\u662f\uff0c\u865a\u62dfip\u5730\u5740\u7684\u5e7f\u64ad\u5730\u5740\u662f\u5b83\u672c\u8eab\uff0c\u5b50\u7f51\u63a9\u7801\u662f255.255.255.255\u3002\r\nifconfig ens36:0 192.168.71.200 broadcast 192.168.71.200 netmask 255.255.255.255 up\r\n\r\n#2\u3001\u6dfb\u52a0\u8def\u7531\u89c4\u5219\r\nroute add -host 192.168.71.200 dev ens36:0\r\n\r\n#3\u3001\u542f\u7528\u7cfb\u7edf\u7684\u5305\u8f6c\u53d1\u529f\u80fd\r\necho \"1\" >\/proc\/sys\/net\/ipv4\/ip_forward<\/pre>\n<\/div>\n
3.3 \u6dfb\u52a0\u8d1f\u8f7d\u5747\u8861\u89c4\u5219\uff08\u4e0e\u7b2c\u4e8c\u7ae0\u8282\u914d\u7f6e\u7684\u89c4\u5219\u4e0d\u540c\uff0c\u6b64\u5904\u5e94\u8be5\u6dfb\u52a0\u7684\u662f\u4ee3\u7406\u5230\u4e24\u53f0\u4e03\u5c42\u8d1f\u8f7d\u5747\u8861\u7684ip+port\uff09<\/span><\/div>\n
\n
ipvsadm -C #\u6e05\u9664\u5185\u6838\u865a\u62df\u670d\u52a1\u5668\u8868\u4e2d\u7684\u6240\u6709\u8bb0\u5f55\r\nipvsadm -A -t 192.168.71.200:8081 -s rr # -s rr\u8868\u793a\u91c7\u7528\u8f6e\u8be2\u7b56\u7565\u3002\r\nipvsadm -a -t 192.168.71.200:8081 -r 192.168.71.116:8081 -g #\u6dfb\u52a0\u670d\u52a1\u5668\u8282\u70b9\uff0c-g\u8868\u793a\u6307\u5b9aLVS \u7684\u5de5\u4f5c\u6a21\u5f0f\u4e3a\u76f4\u63a5\u8def\u7531\u6a21\u5f0f\r\nipvsadm -a -t 192.168.71.200:8081 -r 192.168.71.111:8081 -g #\u6dfb\u52a0\u670d\u52a1\u5668\u8282\u70b9\r\nipvsadm -Ln #\u67e5\u770b\u8282\u70b9\u72b6\u6001\uff0c\u52a0\u4e2a\u201c-n\u201d\u5c06\u4ee5\u6570\u5b57\u5f62\u5f0f\u663e\u793a\u5730\u5740\u3001\u7aef\u53e3\u4fe1\u606f<\/pre>\n<\/div>\n
4\u3001RS\u914d\u7f6e\uff08\u4e24\u53f0\u8d1f\u8f7d\u5747\u8861\u662f\u6211\u4eec\u7684RS\uff0c\u800c\u4e0d\u662fweb\u5e94\u7528\uff09<\/span><\/h2>\n
4.1 \u5728\u672c\u5730lo\u7f51\u5361\u4e0a\u914d\u7f6e\u4e0avip\u5730\u5740<\/div>\n
ifconfig lo:0 192.168.71.200 broadcast 192.168.71.200 netmask 255.255.255.255 up \r\nroute add -host 192.168.71.200 dev lo:0<\/pre>\n
4.2 \u5173\u95edarp\u89e3\u6790<\/p>\n
echo \"1\" >\/proc\/sys\/net\/ipv4\/conf\/lo\/arp_ignore\r\necho \"1\" >\/proc\/sys\/net\/ipv4\/conf\/all\/arp_ignore\r\n\r\necho \"2\" >\/proc\/sys\/net\/ipv4\/conf\/lo\/arp_announce\r\necho \"2\" >\/proc\/sys\/net\/ipv4\/conf\/all\/arp_announce\r\n\r\n\r\ncat >> \/etc\/sysctl.conf << EOF\r\nnet.ipv4.ip_forward=1\r\nnet.ipv4.conf.lo.arp_ignore=1\r\nnet.ipv4.conf.all.arp_ignore=1\r\nnet.ipv4.conf.lo.arp_announce=2\r\nnet.ipv4.conf.all.arp_announce=2\r\nEOF\r\n\r\nsysctl -p #\u4f7f\u7528\u4fee\u6539\u751f\u6548<\/pre>\n
\u914d\u7f6e\u6ce8\u89e3\uff1a<\/p>\n
arp_announce \uff1a\u5b9a\u4e49\u4e0d\u540c\u7ea7\u522b\uff1a\u5f53ARP\u8bf7\u6c42\u901a\u8fc7\u67d0\u4e2a\u7aef\u53e3\u8fdb\u6765\u662f\u5426\u5229\u7528\u8fd9\u4e2a\u63a5\u53e3\u6765\u56de\u5e94\u3002<\/p>\n
0 -\u5229\u7528\u672c\u5730\u7684\u4efb\u4f55\u5730\u5740\uff0c\u4e0d\u7ba1\u914d\u7f6e\u5728\u54ea\u4e2a\u63a5\u53e3\u4e0a\u53bb\u54cd\u5e94ARP\u8bf7\u6c42\uff1b<\/p>\n
1 – \u907f\u514d\u4f7f\u7528\u53e6\u5916\u4e00\u4e2a\u63a5\u53e3\u4e0a\u7684mac\u5730\u5740\u53bb\u54cd\u5e94ARP\u8bf7\u6c42\uff1b<\/p>\n
2 – \u5c3d\u53ef\u80fd\u4f7f\u7528\u80fd\u591f\u5339\u914d\u5230ARP\u8bf7\u6c42\u7684\u6700\u4f73\u5730\u5740\u3002<\/p>\n
arp_ignore\uff1a\u5f53ARP\u8bf7\u6c42\u53d1\u8fc7\u6765\u540e\u53d1\u73b0\u81ea\u5df1\u6b63\u662f\u8bf7\u6c42\u7684\u5730\u5740\u662f\u5426\u54cd\u5e94\uff1b<\/p>\n
0 – \u5229\u7528\u672c\u5730\u7684\u4efb\u4f55\u5730\u5740\uff0c\u4e0d\u7ba1\u914d\u7f6e\u5728\u54ea\u4e2a\u63a5\u53e3\u4e0a\u53bb\u54cd\u5e94ARP\u8bf7\u6c42\uff1b<\/p>\n
1 – \u54ea\u4e2a\u63a5\u53e3\u4e0a\u63a5\u53d7ARP\u8bf7\u6c42\uff0c\u5c31\u4ece\u54ea\u4e2a\u7aef\u53e3\u4e0a\u56de\u5e94\u3002<\/p>\n
 <\/p>\n
4.3\u00a0 \u4e09\u4e2aweb\u4e0a\u90e8\u7f72<\/p>\n
 \u90e8\u7f72nginx\r\n\r\n\u7136\u540e\u653e\u7f6e\u6587\u4ef6\uff1a\/usr\/share\/nginx\/html\/1.txt # \u5206\u522b\u5199\u5165web01\u3001web02\u3001web03<\/pre>\n
 <\/p>\n
5\u3001\u6d4b\u8bd5\u8bbf\u95ee<\/h2>\n
\u65b9\u5f0f\u4e00\uff1a\u6d4f\u89c8\u5668\u8bbf\u95ee\u6d4b\u8bd5<\/p>\n
\u5148\u628a\u6240\u6709web\u4e0a\u7684nginx\u914d\u7f6e\u91cc\u7684keepalive_timeout\u90fd\u8bbe\u7f6e\u4e3a0\uff0c\u5426\u5219\u4f1a\u56e0\u4e3a\u957f\u8fde\u63a5\u800c\u7ecf\u5e38\u8bbf\u95ee\u5230\u4e00\u4e2a<\/p>\n
http {\r\n    keepalive_timeout   0;\r\n    \u3002\u3002\u3002\u3002\u3002\u3002\r\n}<\/pre>\n
 <\/p>\n
\u65b9\u5f0f\u4e8c\uff1a<\/p>\n
 [root@web01 ~]# curl http:\/\/192.168.71.200:8081\/1.txt\r\n--------------------web01111111111111111\r\n[root@web01 ~]# curl http:\/\/192.168.71.200:8081\/1.txt\r\n--------------------web01111111111111111\r\n[root@web01 ~]# curl http:\/\/192.168.71.200:8081\/1.txt\r\n-------------web02222222222222222222\r\n[root@web01 ~]# curl http:\/\/192.168.71.200:8081\/1.txt\r\n-------------web02222222222222222222\r\n[root@web01 ~]# curl http:\/\/192.168.71.200:8081\/1.txt\r\n---------------------web033333333333333333333333333333333333\r\n[root@web01 ~]# curl http:\/\/192.168.71.200:8081\/1.txt\r\n---------------------web03333333333333333333333333333333333<\/pre>\n
 <\/p>\n
\u56db\u3001lvs\u56db\u5c42\u4ee3\u7406nginx\u4e03\u5c42\u5b9e\u73b0\u900f\u4f20\u771f\u5b9e\u5ba2\u6237\u7aefip<\/h1>\n
1\u3001LVS-DR\u6a21\u5f0f\u6539\u53d8\u7684\u662f\u5e95\u5c42\u7684mac\u5730\u5740\uff0c\u5ba2\u6237\u7aefip\u5730\u5740\u672c\u8eab\u5c31\u662f\u900f\u4f20\u7684<\/p>\n
2\u3001\u6240\u4ee5\u6211\u4eec\u53ea\u9700\u8981\u5728\u4e03\u5c42\u8d1f\u8f7d\u5747\u8861\u91cc\u7528proxy_set_header\u6307\u4ee4\u6765\u8f6c\u53d1\u5ba2\u6237\u7aef\u771f\u5b9eip\u5373\u53ef<\/p>\n
[root@db ~]# cat \/etc\/nginx\/nginx.conf\r\nevents {\r\n    worker_connections 1024;\r\n}\r\nhttp {\r\n    #keepalive_timeout 0;\r\n    upstream web_app_servers {\r\n        server 192.168.71.112:8080 weight=1;\r\n        server 192.168.71.113:8080 weight=1;\r\n        server 192.168.71.114:8080 weight=1;\r\n    }\r\n    server {\r\n        listen 8081;\r\n        location \/ {\r\n            proxy_pass http:\/\/web_app_servers;\r\n\r\n            # -------------------\u300b\u53ea\u52a0\u4e0a\u4e0b\u9762\u8fd9\u4e00\u6bb5\u5373\u53ef\r\n            proxy_set_header X-Real-IP $remote_addr;\r\n            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;\r\n            proxy_set_header Host $http_host;\r\n            proxy_set_header X-Forwarded-Proto $scheme;\r\n            \r\n        }\r\n    }\r\n}\r\n<\/pre>\n
 <\/p>\n
3\u3001\u540e\u7aef\u7684web\u91cc\u53ea\u9700\u8981\u4ece\u914d\u7f6e\u65e5\u5fd7\u5373\u53ef\uff0c\u5176\u4ed6\u5730\u65b9\u90fd\u4e0d\u9700\u8981\u914d\u7f6e<\/p>\n
http {\r\n    log_format  main  '$remote_addr - $remote_user [$time_local] \"$request\" '\r\n                      '$status $body_bytes_sent \"$http_referer\" '\r\n                      '\"$http_user_agent\" \"$http_x_forwarded_for\"'; # \u672b\u5c3e\u52a0\u4e2a$http_x_forwarded_for\r\n\r\n<\/pre>\n
 <\/p>\n
\u6d4b\u8bd5\uff1a\u5ba2\u6237\u7aef\uff08192.168.71.7 windows\u6253\u5f00\u6d4f\u89c8\u5668\uff09\u8bbf\u95ee<\/p>\n
\"\"<\/div><\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e00\u3001\u5de5\u4f5c\u539f\u7406\u590d\u4e60 1\u3001\u5ba2\u6237\u7aef\u53d1\u9001\u8bf7\u6c42\u5230 Director Server (\u8d1f\u8f7d\u5747\u8861\u5668 DS\uff09\uff0c\u8bf7\u6c42\u7684\u6570\u636e\u62a5\u6587\uff08 […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/9312"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9312"}],"version-history":[{"count":15,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/9312\/revisions"}],"predecessor-version":[{"id":10961,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/9312\/revisions\/10961"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9312"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9312"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9312"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}