[LUNI] Securing /tmp

[Branko Kotur]

I've already set my /tmp as noexec, but everything I've seen regarding this 
topic only mentions using noexec.  I haven't been able to find anything that 
would allow me to prevent perl/shell scripts from running inside /tmp.  Does 
anyone know if this is possible, and if so, how?

This is for shared web hosting servers.  While I can't control what my 
customers do nor force them to upgrade their PHP scripts every day, I'd like 
to at least minimize the results of their lack of understanding/caring about 
the risks of not upgrading.