ubuntu 16.04 安装和配置vncserver

https://www.linode.com/docs/applications/remote-desktop/install-vnc-on-ubuntu-16-04/#connect-to-vnc-from-your-desktop

https://blog.whe.me/post/ubuntu-install-gui.html

securecrt ssh 端口转发

关闭vncserver密码认证

vncserver -SecurityTypes None

https://serverfault.com/questions/376302/tigervnc-ssh-without-a-vnc-password