Originally published May 15, 2018 @ 10:03 am
I rarely use GUIs, but when I do, it’s from CLI and every time I run into the annoying MIT-MAGIC-COOKIE-1 data did not match error. It’s easy to fix, but it happens to me so rarely that between the fixes I forget how I did it.
So here’s a bash one-liner – sort of – to be ran after you sudo to whatever other user account. This works best for the root account as it relies on the target user to have passwordless sudo access to the source user’s .Xauthority file.
xauth add $(sudo xauth -f $(grep ^$(logname): /etc/passwd | awk -F: '{print $6}')/.Xauthority list | grep ":$(grep -oP "(?<=:)[0-9]{1,}(?=\.)" <<<${DISPLAY})\s")
You can add it as a convenient alias in your .bashrc if this is something you plan on running often.
Experienced Unix/Linux System Administrator with 20-year background in Systems Analysis, Problem Resolution and Engineering Application Support in a large distributed Unix and Windows server environment. Strong problem determination skills. Good knowledge of networking, remote diagnostic techniques, firewalls and network security. Extensive experience with engineering application and database servers, high-availability systems, high-performance computing clusters, and process automation.
