Robin:
Do not put any effort into disabling ssh from compute nodes to
compute nodes. MPI, TCP/sockets, cluster openmp use ssh to communicate with
the nodes.
There will be some users that will figure it out but not many.
--
Jaime E. Combariza
Assistant Director Research Computing
Academic Technology Services
[log in to unmask]
(513) 529-5080
Miami University
Oxford, Ohio 45056