Why does ssh X forwarding timeout after a while?

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Chapters
00:00 Why Does Ssh X Forwarding Timeout After A While?
00:41 Answer 1 Score 20
01:01 Accepted Answer Score 29
01:22 Thank you

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Full question
https://superuser.com/questions/407218/w...

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Tags
#ssh #x11forwarding

#avk47

ACCEPTED ANSWER

The default ForwardX11Timeout is 20 minutes for ssh -X, but you can set it to something large (e.g. 7d for 7 days) in .ssh/config

"Trusted" X11 forwarding via ssh -Y actually enables potentially nasty things like keystroke monitoring and screen grabs.

Using -X, X11 forwarding is enabled in "Untrusted" mode, making use of various X11 security extensions, including a time-limited Xauth cookie.

Use -Y to enable "Trusted" mode for X11, which will enable complete access to your X11 server.