[Beowulf] block runing jobs individually on each node

Yaroslav Halchenko list-beowulf at onerussian.com
Thu Apr 7 10:45:11 PDT 2005

I don't know precise answer but if you look in
/etc/security/access.conf (or elsewhere on your distro - it is a part of

you can limit access to the nodes without TTY allocated, which is seems
to be the case for non-login shells of PBS run jobs, or I'm mistaken?


On Thu, Apr 07, 2005 at 12:13:34PM -0500, jerry xu wrote:
> Hi, Dear All:
>    I am managing a simple 24 nodes beowulf cluster, basically I require
> all my jobs are running through PBS. However, some undergraduate
> students in our lab always try to ssh to each individual node in the
> cluster and run their jobs, which is pretty bad for me to managing the
> resources and control my program running status. I remember there is way
> to block people running job that is seperated from the batch system but
> at the same time still allow them ssh to each node to grab some tmp
> files?. But I just donot remember how to do it, can anyone give some
> directions?

> Thanks so much,

> Jerry

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