cd /etc

sudo vi hosts

//hosts文件

//添加示例如下：

127.0.0.1 www.example.com

#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;

    server {

        listen       8080;

        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;

    #    }

    #}

    include servers/*;//主要看这里，这里的配置说明了除了可以在这里配置Nginx的配置外，还可以在当前目录下的servers子目录中配置。

}

upstream example_server_name {

    server localhost:8081;   //这里配置我们的前端地址，其实这里可以配置多个地址那么Nginx做的不光是反向代理的功能了,还能实现负载均衡的功能。

}

   server { listen 80; //这里国际默认通用80端口

    server_name  www.example.com *.example.com;//hosts中设置的访问地址

    # individual nginx logs for this web vhost

    access_log  /tmp/rrs-access.log;

    error_log   /tmp/rrs-error.log ;

    location = /favicon.ico {

       return  404;

    }

    #when not specify request uri, redirect to /index;

    location = / {

       rewrite ^ /index ;

    }

    #static files

    location ~/(.*)$ {

       root x/xx/xx; //静态资源访问

       expires 30d;

       access_log off;

    }

location / {

proxy_pass http://example_web_server; //配置转向的upstream,就是最上面设置的upstream。

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-Mobile-Client $mobile_request;
  }

}