Re: rsh as root
I am fairly sure you could just create a script that had the shutdown
commands in it, then setuid the file (which is owned by root). Then you
should be able to run the file as a normal user except it would get
elevated to root privleges when ran. I don't have a beowulf in front of me
right now so i can't test it but i do remeber doing something simlar
before and having it work. For help with setuid and setguid check out the
man page for chmod.
On Fri, 1 Nov 2002, Pavel Jurus wrote:
> I am playing with small cluster, the number of nodes is increasing however
> and I just started to solve task of logging automatically to each node (or
> selected list) to reboot or shutdown machine. To do this in script I need
> to use rsh as root without password, but I haven't figured out how to do
> it in Debian the right way. /etc/hosts.equiv doesn't help and I suspect
> it is disabled by pam configuration because it is of course huge security
> hole in normal settings.
> Could you please tell me "your way" of rebooting via script or give me some
> hints how to configure pam (it is in /etc/pam.d/rsh is suppose but I'm
> newbie to pam)?
> Pavel Jurus
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