X11-forwarding over ssh is when a user logs in securely to a remote machine, starts X applications on that machine, and is able to view that remote desktop on his local screen.

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What is the difference between `ssh -Y` (trusted X11 forwarding) and `ssh -X` (untrusted X11 forwarding)?

What is the difference between ssh -Y (trusted X11 forwarding) and ssh -X (untrusted X11 forwarding)? As far as I have understood it, it has something to do with security, but I did not grasp the ...
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Redirect existing windows via SSH and X11 forwarding?

Using ssh -X user@host I can start programs on the host and X11 forwarding allows me to see their windows on the remote machine. However, I'd like to be able to forward/redirect existing windows. How ...
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Reverse X11 forwarding

I was playing with my phone (that runs a Linux/X stack) last night and I managed to ssh into my desktop and run an application and have it show up on my phone. It was awesome. Today I'd like to sort ...