nginx四层代理配置

nginx支持4层代理，可以代理常规tcp/udp端口。

stream {
       log_format proxy '$remote_addr [$time_local]'
                '$protocol $status $bytes_sent $bytes_received'
                '$session_time "$upstream_addr" '
                '"$upstream_bytes_sent" "$upstream_bytes_received" "$upstream_connect_time"';
      access_log //app/nginx-1.16.1/logs/tcp-access.log proxy ;
      error_log  /app/nginx-1.16.1/logs/tcp-error.log warn ;
    upstream sms_proxy {
        hash $remote_addr consistent;
        server 10.198.40.102:9539;
    }
    server {
        listen 9539;
        proxy_connect_timeout 1s;
        proxy_timeout 10s;
        proxy_pass sms_proxy;
    }
}