[TUHS] Quotas - did anyone ever use them?

George Ross gdmr at inf.ed.ac.uk
Fri May 31 17:16:55 AEST 2019

>  And of course we
> found all kinds of tricks to get around those quotas (e.g. "giving away"
> large files to someone with leftover quota), which is why on many systems
> you're not allowed to chown files if you're not root.

When I took over running a labful of SunOS machines that were used by our 
CS students, one of the first thing I did was turn off a few things in the 
system call vector for UIDs higher than a "staff" cutoff.  That included 
things like chown, chmod and setting the umask.  As well as making it 
harder for them to share solutions, it also had the advantage of making 
other systems more tempting targets...
George D M Ross MSc PhD CEng MBCS CITP
University of Edinburgh, School of Informatics,
Appleton Tower, 11 Crichton Street, Edinburgh, Scotland, EH8 9LE
Mail: gdmr at inf.ed.ac.uk   Voice: 0131 650 5147 
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