PDC clusters use Kerberos system for authentification which means you need to tweak your ssh client configuration a little.
General information is avaliable on PDC's "How to login" webpage
Here's the relevant part of ~/.ssh/config (replace “username” with your username):
Host *.kth.se *.kth.se. GSSAPIAuthentication yes GSSAPIKeyExchange yes Host *.csc.kth.se *.csc.kth.se. *.nada.kth.se *.nada.kth.se. *.pdc.kth.se *.pdc.kth.se. GSSAPIDelegateCredentials yes Host lindgren User username Hostname lindgren.pdc.kth.se GSSAPIKeyExchange yes Host lindgrenfs User username Hostname cfs-aux-4.pdc.kth.se
Provided that you have kerberos installed in your system, you can then get authenticated using following command and your password:
kinit -f -l 700h username@NADA.KTH.SE
This command grants you access to any PDC cluster for the following 700 hours (that's roughly one february). You can login to PDC cluster via ssh:
For convenience, it might useful to define similar aliases in your .bashrc:
alias lin='ssh firstname.lastname@example.org' alias lin-auth='kinit -f -l 700h username@NADA.KTH.SE && lin'
More information avaliable on PDC's website