/etc/nginx/sites-available/default内容如下：

修改

server {
        listen 80 default_server;
        listen [::]:80 default_server ipv6only=on;
        root /var/www/html;

        proxy_set_header X-Forwarded-For $remote_addr;
        location / {
            proxy_pass        http://127.0.0.1:9000;
            proxy_set_header   Host             $host;
            proxy_set_header   X-Real-IP        $remote_addr;
            proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
        }

   error_page 400 403 404 497 https://$host$uri$args;
    }

例2：

server {
		listen 443 ssl http2;
		server_name t.qs100371.top;
		ssl_certificate "/root/ssl/_.qs100371.top.crt";
	        ssl_certificate_key "/root/ssl/_.qs100371.top.key";
		location / {
			proxy_pass http://f.qs100371.top:8181/;
			proxy_set_header Host $host;
			proxy_set_header X-Real-IP $remote_addr;
			proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
			proxy_set_header X-Forwarded-Proto $scheme;
		}
	}