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Why is my X11 not forwarding over SSH?
The host key for the server changed (new build) and I disabled key checking in my ssh_config, so because it was a mismatched key X11 forwarding was disabled by SSH. Have you tried using ssh -Y to connect?
Is there port 12776 that SSH cannot bind to?
For one thing, it looks like port 12776 is already in use locally so ssh cannot bind to that port. What is already using that port? Second thing: what are the permissions for your .ssh folder (/root/.ssh/)?
Is it possible to forward X11 files to OpenSSH?
It seems that OpenSSH does not support x11 forwarding. Thanks for contributing an answer to Unix & Linux Stack Exchange! Please be sure to answer the question. Provide details and share your research!
How to connect X11 tunnel to another user?
X authentication is based on cookies, so it’s necessary to set the cookie used by the user that initiated the connection. The following procedure allows a sudo user to use the ssh based X11 tunnel: 1. Connect the remote host using the -X option with ssh. 2. Now list the coockie set for the current user. 3. Switch to another user account using sudo.
Can a Sudo user use the X11 tunnel?
The following procedure allows a sudo user to use the ssh based X11 tunnel: 1. Connect the remote host using the -X option with ssh. 2. Now list the coockie set for the current user. 3. Switch to another user account using sudo. Add the cookie from the command output above to the sudo user.
Why is my X11 forwarding error not working?
The broken X11 forwarding error may also happen if the remote host where SSH server is running has IPv6 disabled. To fix the error in this case, open /etc/ssh/sshd_config file, and uncomment “AddressFamily all” (if any). Then add the following line. This will force SSH server to use IPv4 only, but not IPv6.
How do I enable X11 forwarding in putty?
Start PuTTY. In the PuTTY Configuration section, on the left panel, select Connection → SSH → X11. On the right panel, click on the Enable X11 forwarding checkbox. Set the X display location as :0.0. Click on Session option on the left panel. Enter the hostname or IP address in the Host Name textbox.