转发http的方式

http{
    proxy_read_timeout 300s; # 超时时间5分钟
    proxy_send_timeout 300s;
    keepalive_requests 1000;
    keepalive_timeout 300s;
    server{
        listen  8888; # 监听端口8888 跳转到下面地址
        location / {
            proxy_pass http://192.168.1.20:8080;
        }
    }
}

转发tcp的方式

# 通过3000端口访问本机的mysql
events {
    use epoll;
    worker_connections  1024;
}
stream {
    server {
        listen 3000;
        proxy_pass 127.0.0.1:3306;

    # 也支持socket
    # proxy_pass unix:/var/lib/mysql/mysql.socket;
    }
}