enable x authentication over ssh for the root

Question

over ssh -

$xclock
$sudo su -

#xclock
X11 connection rejected because of wrong authentication.

so I do -

$xauth list /*copy the lines*/ 
$sudo su -
#xauth add /*paste the lines*/
#xclock /* works */

I am fed up doing this on every login, how can I persist it?

Answer 1

1. Don't run X11 software as root. Seriously.

2. Use sudo -s or sudo -i instead of sudo su.

3. Add XAUTHORITY to sudo's env_keep configuration option. It should point to an Xauthority file in your home directory.