nginx的端口转发

1.yum 安装方式
vim /etc/nginx/conf.d/proxy.conf
stream {
  upstream proxy_mysql {
  server 192.168.1.10:3306;
  }
  
  server {
  listen 9999;
  proxy_pass proxy_mysql;
  }
}
[root@localhost ~]# nginx -t
nginx: [emerg] unknown directive "stream" in /etc/nginx/conf.d/proxy.conf:1
nginx: configuration file /etc/nginx/nginx.conf test failed
#若是出现上面的错误，执行下面的操作后再nginx -t

[root@localhost ~]# yum -y install nginx-all-modules.noarch
[root@localhost ~]# nginx -t
nginx: [emerg] "stream" directive is not allowed here in /etc/nginx/conf.d/proxy.conf:1
nginx: configuration file /etc/nginx/nginx.conf test failed
#安装完模块之后继续问题，这个问题表示stream指令不允许防止在这里，那当前的位置是在http指令中。所以把他移出来。
vim /etc/nginx.conf
events {
  ......
}

http {
  ......
}
#配置方法1 
stream {
  server {
  listen 9999;
  proxy_pass 192.168.1.10:3306;
  }
}
#配置方法2
stream {
  upstream proxy_mysql {
    server 192.168.1.10:3306
  }
  server {
    listen 9999;
	proxy_ass proxy_mysql;
  }
}

# 然后再nginx -t 即可通过。再nginx -s reload即可，不行就systemctl restart nginx

2.编译安装方式的端口转发
nginx -V  #获取原来的编译参数
./configure --with-stream （添加上即可）