Use a Publically-Accessible SSH Gateway

• Most HPC facilities on campus are firewalled — no access from off campus.
• From home, SSH to a "SSH gateway" on campus and from there to Mace01/Man2. . .  

Even Works with X11:

  home> ssh -X sekhmet.umist.ac.uk -l <username>
  .
  .
  sekhmet> ssh -X man2.nw-grid.ac.uk -l <username>
  .
  .
  man2> gedit &
      # ...displays on "home" screen (assuming X11 server running)

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