Nginx负载均衡在windows上的配置

一、下载Nginx windows部署包

http://nginx.org/en/download.html
下载后解压到c或d盘

二、命令启动服务

cmd: start nginx

nginx -s stop	quick exit
nginx -s quit	graceful quit
nginx -s reload	changing configuration, starting a new worker, quitting an old worker gracefully
nginx -s reopen	reopening log files

三、测试服务是否安装成功

在浏览器输入http://localhost,如果页面显示如下，则成功
如果error.log中出现：2011/06/16 15:23:55 [emerg] 7136#4040: bind() to 0.0.0.0:80 failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)，则未安装成功，80端口被占用了，在nginx.conf文件中把listen端口改成其他的端口比如8099.

四、实例搭建

    首选：我们要在我们的iis上面把我们做好的web应用部署上去，部署到不同的机器上面，设置好对应的ip和端口号，因为我在本机模拟出效果，所以我就在本机的iis上面部署了2个web应用，第一个web应用部署在localhost：8011端口，第二个应用部署为localhost：8012端口，同时为了看到演示效果，我们把里面的WebForm1.aspx页面做了一个标记，里面标记为:第几个web应用程序的页面，实际我们部署系统，不需要这样做，就是把我们的一个web应用部署到不同机器上面的服务器上，下面所示。
web应用1地址：http://localhost:8011/WebForm1.aspx
web应用2地址：http://localhost:8012/WebForm1.aspx
（1）启动Nginx服务
（2）修改Nginx配置项，具体配置说明，我们在参数设置部门说明，然后验证服务是否正常启动。
（3）访问地址http://localhost:8010/WebForm1.aspx观察结果



（4）这样我们就可以模拟出负载均衡效果了，ok

五、参数设置

配置C服务器(前端负载转发服务器)nginx的配置文件 nginx.conf
以下标红的就是需要配置的.其中ip_hash很重要（可以保证每个访客可以固定一个后端，保证session不会出问题)

#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;

    #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;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;

upstream localhost
{
ip_hash;
server 192.168.0.1:81;
server 192.168.0.2:81;
}
    server {
 listen       80;
        server_name localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            proxy_pass http://localhost;
            proxy_redirect default;
        }

        #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;
    #    server_name  localhost;

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

    #    ssl_session_timeout  5m;

    #    ssl_protocols  SSLv2 SSLv3 TLSv1;
    #    ssl_ciphers  ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
    #    ssl_prefer_server_ciphers   on;

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

}