GNet Solutions » FreeBSD Administration

This is a simple guide on forwarding graphical X11 applications in a FreeBSD jail over an SSH connection.

Prepare the Environment¶

• Make sure the system is up to date:
  

  pkg update && pkg upgrade
  

• Install xauth:
  

  pkg install xauth
  

• Edit the SSHd config:
  

  vi /etc/ssh/sshd_config
  

  • Make sure following three lines exist:
    

    AllowTcpForwarding yes 
    X11Forwarding yes 
    X11UseLocalhost no
    

• Restart SSH:
  

  service sshd restart
  

• Now SSH into the jail using the -X flag to use X Forwarding:
  

  ssh -X jail.example.com
  

Resources¶

• https://www.textplain.net/tutorials/2015/x11-forwarding-in-a-freebsd-jail/