www.ha97.com 和 blog.ha97.com 域名均指向 Nginx 所在的服务器IP。

用户访问http://www.ha97.com，将其负载均衡到192.168.1.2:80、192.168.1.3:80、192.168.1.4:80、192.168.1.5:80四台服务器。

用户访问http://blog.ha97.com，将其负载均衡到192.168.1.7服务器的8080、8081、8082端口。

以下为配置文件nginx.conf：

user www www;

worker_processes 10;

#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;

#pid logs/nginx.pid;

#最大文件描述符
worker_rlimit_nofile 51200;

events
{
use epoll;

worker_connections 51200;
}

http
{
include conf/mime.types;
default_type application/octet-stream;

keepalive_timeout 120;

tcp_nodelay on;

upstream www.ha97.com {
server 192.168.1.2:80;
server 192.168.1.3:80;
server 192.168.1.4:80;
server 192.168.1.5:80;
}

upstream blog.ha97.com {
server 192.168.1.7:8080;
server 192.168.1.7:8081;
server 192.168.1.7:8082;
}

server
{
listen 80;
server_name www.ha97.com;

location / {
proxy_pass http://www.ha97.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;
}

log_format www_ha97_com ‘$remote_addr – $remote_user [$time_local] $request ‘
‘”$status” $body_bytes_sent “$http_referer” ‘
‘”$http_user_agent” “$http_x_forwarded_for”‘;
access_log /data1/logs/www.log www_ha97_com;
}

server
{
listen 80;
server_name blog.ha97.com;

location / {
proxy_pass http://blog.ha97.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;
}

log_format blog_ha97_com ‘$remote_addr – $remote_user [$time_local] $request ‘
‘”$status” $body_bytes_sent “$http_referer” ‘
‘”$http_user_agent” “$http_x_forwarded_for”‘;
access_log /data1/logs/blog.log blog_ha97_com;
}
}

附：Nginx 的安装方法可参照http://www.ha97.com/570.html文章的以下段落（仅做负载均衡，无需支持PHP的安装方法）：

二、安装PHP 5.2.13（FastCGI模式）
4、创建www用户和组，以及其使用的目录：

三、安装Nginx 0.8.36
1、安装Nginx所需的pcre库：
2、安装 Nginx
3、创建Nginx日志目录
5、启动Nginx