[Beowulf] are compute nodes always kept in a private I/P and switch space?
rpnabar at gmail.com
Tue Jan 12 23:06:25 PST 2010
I always took it as natural to keep all compute nodes on a private
switch and assigned them local I/P addresses. This was almost
axiomatic for an HPC application in my mind. This way I can channel
all traffic to the world and logins while a select login-node. Then
firewall the login nodes carefully.
Just today, though, on a new project the admin said he always keeps
his compute nodes with public I/Ps and runs individual firewalls on
This seemed just so wrong to me in so many ways but i was curious if
there are legitimate reasons why people might do this? Just curious.
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