#user  nobody;
worker_processes1;

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

#pid        logs/nginx.pid;


events {
    worker_connections1024;
}


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_timeout0;
    keepalive_timeout65;

    #gzip  on;

 upstream mysvr {
      #weigth参数表示权值，权值越高被分配到的几率越大   
      #1.down 表示单前的server暂时不参与负载
      #2.weight 默认为1.weight越大，负载的权重就越大。     
      #3.backup： 其它所有的非backup机器down或者忙的时候，请求backup机器。所以这台机器压力会最轻。  
      #server192.168.1.116  down;
      #server192.168.1.116  backup;
      server192.168.1.128:8080  weight=1;
      server192.168.1.194:8080  weight=2;
    }

    server {
        listen80;　　　　　　　　#这里是外网公布的访问的端口
        server_name122.122.122.122; #这里是外网公布的访问的公网ip 、或是域名

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location/ {          
        proxy_pass  http://mysvr; 　　#跟载均衡服务器的upstream对应
        proxy_connect_timeout  5s;　　#这里代表其中一台服务器宕机之后把访问转向另外一台服务器
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
             #禁用缓存
        proxy_buffering off;
        }



        #error_page404              /404.html;

        # redirect server error pages to thestatic page /50x.html
        #
        error_page500 502 503 504  /50x.html;
        location= /50x.html {
            root   html;
        }

        # proxy the PHP scripts to Apache listening on127.0.0.1:80
        #
        #location~ .php$ {
        #    proxy_pass   http://127.0.0.1;        #}

        # pass the PHP scripts to FastCGI server listening on127.0.0.1:9000
        #
        #location~ .php$ {
        #    root           html;
        #    fastcgi_pass127.0.0.1:9000;
        #    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;
        #}
    }


    # anothervirtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;

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


    # HTTPS server
    #
    #server {
    #    listen443 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;
    #    }
    #}

}

nginx相关命令：

1)        启动Nginx：start nginx

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2)        停止Nginx：nginx -s stop

3)        修改配置后重启：nginx -s reload

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