CentOS Nginx 已经是目前公认的效率很高的代理服务,同时可以用来做负载均衡。
用户访问 www.server110.com 均衡到 10.10.10.181:8080; 10.10.10.181:8081; 10.10.10.181:8082这3台服务器。
配置CentOS Nginx 的nginx.conf
http {}增加如下内容
upstream www.server110.com
{server 10.10.10.181:8080;
server 10.10.10.181:8081;
server 10.10.10.181:8082; }
server {} 修改异侠信息:
listen 80;
server_name www.server110.com;
#charset koi8-r;
#access_log logs/host_access_log main;
location / {
proxy_pass http://www.server110.com;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
access_log logs/www.server110.com.log combined;
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启动181上的3个tomcat,修改tomcat首页加入端口信息,以用来清晰看到当前分配到那台tomcat启动Nginx,访问 http://www.server110.com/可看到请求被发送到3台服务器。
抓http包可看到request为
GET / HTTP/1.1
Host: www.server110.com
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.0.4) Gecko/2008102920 Firefox/3.0.4
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,zh-cn;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: gb2312,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Cookie: JSESSIONID=A75E09D2EBF769A7BD95195E29DE87DE; key=1227008000183; memberName=admin; memberType=%7C%u8D85%u7EA7%u7BA1%u7406%u5458%7C
Pragma: no-cache
Cache-Control: no-cache
response:
HTTP/1.1 200 OK
Server: nginx/0.7.21-win32
Date: Tue, 18 Nov 2008 12:12:33 GMT
Content-Type: text/html
Connection: keep-alive
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