server {
    listen 443 ssl;
    server_name vnc.local.domain;
    include ssl-params.conf;
    location / {
      proxy_pass http://192.168.1.23:8081/vnc.html;
      proxy_http_version 1.1;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection "upgrade";
      proxy_read_timeout 43200000;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Host $http_host;
      proxy_set_header X-NginX-Proxy true;
    }

  }