nginx 四层代理配置

nginx自从1.9.0版本开始已经有4层代理了，编译安装需要添加参数：

--with-stream

四层代理的标签是stream,类似http,不能位于http里面，简单配置可以参考以下：

stream {
        server {
        listen 10000;
        proxy_pass 127.0.0.1:10000;
        }

        server {
        listen 8000;
        proxy_pass 127.0.0.1:8000;
        }
}

多台可以均衡：

stream {
    upstream stream_backend {
        least_conn;
        server backend1.example.com:12345 weight=5;
        server backend2.example.com:12345 max_fails=2 fail_timeout=30s;
        server backend3.example.com:12345 max_conns=3;
    }
    
    upstream dns_servers {
        least_conn;
        server 192.168.136.130:53;
        server 192.168.136.131:53;
        server 192.168.136.132:53;
    }
    
    server {
        listen        12345;
        proxy_pass    stream_backend;
        proxy_timeout 3s;
        proxy_connect_timeout 1s;
    }
    
    server {
        listen     53 udp;
        proxy_pass dns_servers;
    }
    
    server {
        listen     12346;
        proxy_pass backend4.example.com:12346;
    }
}

具体可以参考官方文档：

https://docs.nginx.com/nginx/admin-guide/load-balancer/tcp-udp-load-balancer/

http://nginx.org/en/docs/stream/ngx_stream_core_module.html

原文链接：nginx 四层代理配置，转载请注明来源！