NGINX搭建负载均衡

#user nobody;
worker_processes 1;

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

#pid logs/nginx.pid;

events {
worker_connections 1024;
}

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

map $http_upgrade $connection_upgrade {
	default upgrade;
	'' close;
   }
   
#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  logs/access.log  main;

#上传文件最大限制
client_max_body_size 500M;

sendfile        on;
#tcp_nopush     on;

#keepalive_timeout  0;
keepalive_timeout  65;

types_hash_max_size 2048;
server_names_hash_max_size 2048;
types_hash_bucket_size 1024;

#gzip  on;


upstream websocket {
		ip_hash;
		server ip:port;
		server ip:port;
		
    }
	
    server {
		listen     80;
		server_name www.baidu.com;
		
		
		location / {
			
			#此处是nignx负载路径重写，重定向
			rewrite ^/$ http://$server_name/DW permanent;
			
			add_header X-Content-Type-Options nosniff;
			proxy_set_header X-scheme $scheme;
			
			proxy_set_header X-Real-IP $remote_addr;
			proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
			proxy_set_header Host $http_host;
			proxy_set_header X-Nginx-Proxy true;
			proxy_hide_header X-Powered-By;
			proxy_hide_header Vary;
			proxy_pass http://websocket;
			proxy_http_version 1.1;
			proxy_set_header Origin '';
			proxy_set_header Upgrade $http_upgrade;
			proxy_set_header Connection $connection_upgrade;
			proxy_connect_timeout 1800; 
			proxy_read_timeout 900; 
			proxy_send_timeout 900; 
		


			#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.qq.com;
		
		
		location / {
			
			#此处是nignx负载路径重写，重定向
			rewrite ^/$ http://$server_name/DWeb/dw/index.html permanent;
			
			add_header X-Content-Type-Options nosniff;
			proxy_set_header X-scheme $scheme;
			
			proxy_set_header X-Real-IP $remote_addr;
			proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
			proxy_set_header Host $http_host;
			proxy_set_header X-Nginx-Proxy true;
			proxy_hide_header X-Powered-By;
			proxy_hide_header Vary;
			proxy_pass http://websocket;
			proxy_http_version 1.1;
			proxy_set_header Origin '';
			proxy_set_header Upgrade $http_upgrade;
			proxy_set_header Connection $connection_upgrade;
			proxy_connect_timeout 1800; 
			proxy_read_timeout 900; 
			proxy_send_timeout 900; 
		


			#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  localhost;

    #charset koi8-r;

    #access_log  logs/host.access.log  main;

    #location / {
    #    root   html;
    #    index  index.html index.htm;
    #}

    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    #error_page   500 502 503 504  /50x.html;
    #location = /50x.html {
    #  root   html;
    #}

    # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    #
    #location ~ \.php$ {
    #    proxy_pass   http://127.0.0.1;
    #}

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    #location ~ \.php$ {
    #    root           html;
    #    fastcgi_pass   127.0.0.1:9000;
    #    fastcgi_index  index.php;
    #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
    #    include        fastcgi_params;
    #}

    # deny access to .htaccess files, if Apache's document root
    # concurs with nginx's one
    #
    #location ~ /\.ht {
    #    deny  all;
    #}
#}


# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
#    listen       8000;
#    listen       somename:8080;
#    server_name  somename  alias  another.alias;

#    location / {
#        root   html;
#        index  index.html index.htm;
#    }
#}


# HTTPS server
#
#server {
#    listen       443 ssl;
#    server_name  localhost;

#    ssl_certificate      cert.pem;
#    ssl_certificate_key  cert.key;

#    ssl_session_cache    shared:SSL:1m;
#    ssl_session_timeout  5m;

#    ssl_ciphers  HIGH:!aNULL:!MD5;
#    ssl_prefer_server_ciphers  on;

#    location / {
#        root   html;
#        index  index.html index.htm;
#    }
#}