Hi guys,

Here's a variety of abuse that was possible on the old Itanium 
cluster:  once PBS started your session, you could use it to telnet to 
other nodes on the system that weren't allocated to your job and use them 
to run programs of your choosing (or ftp there and store files).

Once we allow students on the system, their curiosity and creativity can 
overcome their judgment.  I know of at least two such cases among the very 
small number of students who used the Itanium cluster.  If we can configure 
things to prevent this, it may be worth considering.

Steve