SSH setup

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Panopticon has a few X applications installed in order to make it easier for some researchers. In order to display these X applications on your workstation you need to set up ssh to forward the X session to your local X server. There are a few ways of doing this.

  • On the command line you can use: 
ssh -Y panopticon.clusters.umaine.edu
  • You can change the default on the system by editing /etc/ssh/ssh_config and make sure you have: 
  ForwardX11 yes
  ForwardX11Trusted yes
  • You can change it for your personal account by doing: 
cp /etc/ssh/ssh_config ~/.ssh/config

nano ~/.ssh/config    # put the following in this file:

  ForwardX11 yes
  ForwardX11Trusted yes

ForwardX11Trusted is used in order to allow X applications to run without producing errors like: 

X Error of failed request:  BadAtom (invalid Atom parameter)
Major opcode of failed request:  20 (X_GetProperty)
Atom id in failed request:  0x6c
Serial number of failed request:  20
Current serial number in output stream:  20
Retrieved from "http://www.clusters.umaine.edu/wiki/index.php/SSH_setup"
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