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--- askingforsupport:keys [2015/06/11 09:58]
andyr
+++ — (current)
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-This allows CHPC staff to assist users - submit jobs, log in to running compute nodes, inspect results.
-You should **never** ask for someone else's password, or give your password to anyone else.
-==== Instructions for CHPC staff ====
-Make your .ssh directory readable by others in the 'users' group.
-   chmod 750 $HOME/.ssh
-[ ssh has permissions checks, but this one does not prevent use of your keys for login ]
-==== Instructions for the user ====
-Add the staff key to their authorized_keys :-
-From your shell on the login node, do this :-
-   ssh-copy-id -i ~staff_user_name/.ssh/id_rsa.pub localhost
-[ obviously, change //staff_user_name// to the staff username ]
-==== To log in to the user account ====
-[ from the login node ]
-   ssh chpc-user@localhost
-==== To remove access afterwards ====
-[ This removes your key, probably at the end, of ~/.ssh/authorized_keys ]
-   sed -e '/staff_user_name@/ d' -i ~/.ssh/authorized_keys

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