nginx的重定向与反向代理

由于公司需求，近期修复了域名访问的问题，具体nginx配置如下

user  nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}


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

    log_format  main  "$remote_addr - $remote_user [$time_local] "$request" "
                      "$status $body_bytes_sent "$http_referer" "
                      ""$http_user_agent" "$http_x_forwarded_for"";

    access_log  /var/log/nginx/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    keepalive_timeout  65;

    #gzip  on;

    include /etc/nginx/conf.d/*.conf;
server {
	listen 80;
	server_name www.xxx.cn xxx.cn; 
	index index.html ;
        location ~* ^/(index|gsdt|clt|runman|gywm|fuwushang).html$ {   
        	rewrite ^.*$ /xxx/html/$request_uri redirect; 
        }	
	if ($host = "xxx.cn") {
		rewrite ^/(.*)$ http://www.xxx.cn/$1 permanent;
	}
	location  /{
                proxy_pass http://127.0.0.1:8080;
                proxy_set_header Host $Host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
	}
}
server {
        listen          80 ;
        server_name www.xxx.com xxx.com;
        index index.html;
        location ~* ^/(index|gsdt|clt|runman|gywm|fuwushang).html$ {   
        	rewrite ^.*$ /xxx/html$request_uri redirect; 
        }	
	if ($host = "xxx.com") {
		rewrite ^/(.*)$ http://www.xxx.com/$1 permanent;
	}
        location /{
                proxy_pass http://127.0.0.1:8080;
                proxy_set_header Host $Host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
	}
   }
}

主要是做了xxx.cn和xxx.com域名的主页重定向和反向代理

第一段location控制了xxx.cn/index.html等具体几个文件的重定向，以解决百度快照和360快照内的访问问题

第二段if控制了无主机头访问时301永久重定向到www主机头的访问

第三段location控制了反向代理