nginx 反向代理时丢失端口的解决方案

    # the 90 port
    server {
        listen       90;
        server_name  zxy1994.cn;
        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Server $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $host:$server_port; #这里是重点,这样配置才不会丢失端口
        location / {
                proxy_pass http://127.0.0.1:9001;
        }
        location = /50x.html {
            root   html;
        }
    }