安装、配置、使用nginx

1.使用yum install nginx命令进行安装

2.安装完成后，配置文件路径位于 /etc/nginx/nginx.conf

参考配置例子

# For more information on configuration, see:
#   * Official English Documentation: http://nginx.org/en/docs/
#   * Official Russian Documentation: http://nginx.org/ru/docs/

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

# Load dynamic modules. See /usr/share/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 1024;
}

http {
    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;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 2048;

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

    # Load modular configuration files from the /etc/nginx/conf.d directory.
    # See http://nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;

    server {       
           listen 80;
	   server_name appgw.livibank.com;    
           location / {           
                     proxy_pass http://192.168.0.242:8080/;           
                     proxy_set_header   Host    $host;           
                     proxy_set_header   X-Real-IP   $remote_addr;           
                     proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;       
                      }  
            } 

# Settings for a TLS enabled server.
#
#    server {
#        listen       443 ssl http2 default_server;
#        listen       [::]:443 ssl http2 default_server;
#        server_name  _;
#        root         /usr/share/nginx/html;
#
#        ssl_certificate "/etc/pki/nginx/server.crt";
#        ssl_certificate_key "/etc/pki/nginx/private/server.key";
#        ssl_session_cache shared:SSL:1m;
#        ssl_session_timeout  10m;
#        ssl_ciphers HIGH:!aNULL:!MD5;
#        ssl_prefer_server_ciphers on;
#
#        # Load configuration files for the default server block.
#        include /etc/nginx/default.d/*.conf;
#
#        location / {
#        }
#
#        error_page 404 /404.html;
#            location = /40x.html {
#        }
#
#        error_page 500 502 503 504 /50x.html;
#            location = /50x.html {
#        }
#    }

}

server_name appgw.livibank.com 

这个是方便可以通过域名转发到不同的服务器（前提是需要配置一下host，ip为nginx所在的机器ip，域名就是server_name配置的域名）

3.nginx启动命令   nginx

4.重启命令 nginx -s reload

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上面那一种是通过server_name域名匹配，还有一种根据location匹配，例如

    server {       
           listen 80;     
           location /appgw/ {           
                     proxy_pass http://192.168.0.242:8080/;           
                     proxy_set_header   Host    $host;           
                     proxy_set_header   X-Real-IP   $remote_addr;           
                     proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;       
                      }  
            } 

请求时候，例如http://124.250.83.1:80/appgw/cocgw/4401，注意当转发到目标ip时候，appgw会截去，即目标机器收到的请求时

192.168.0.242:8080/cocgw/4401