[CentOS] Deleting contents of /tmp on shutdown

Thomas Dukes tdukes at sc.rr.com
Sun Dec 13 03:10:19 UTC 2009


 

> -----Original Message-----
> From: centos-bounces at centos.org 
> [mailto:centos-bounces at centos.org] On Behalf Of Keith Keller
> Sent: Saturday, December 12, 2009 9:19 PM
> To: CentOS mailing list
> Subject: Re: [CentOS] Deleting contents of /tmp on shutdown
> 
> On Sat, Dec 12, 2009 at 07:35:51PM -0500, Thomas Dukes wrote:
> > 
> > Thanks for the link.  It's a little over my head though.
> 
> No it isn't.  The main thing you need is
> 
> mount -t tmpfs -o size=100M,mode=0755 tmpfs 
> /var/www/www.example.com/cache 
> 
> You would adjust size to be the size of the vmdisk you want, 
> and adjust /var/www... to be /tmp.  If you want this on boot, 
> put the appropriate entry into /etc/fstab:
> 
> tmpfs /var/www/www.example.com/cache tmpfs size=100M,mode=0755 0 0
> 
> (same adjustments here)
> 
> > Today, I found upd.pl in my tmp directory.  The date was oct 09.  I 
> > also found my /etc/passwd and /etc/shadow had been changed 
> with a user 
> > of 0Profile added.  I deleted the old files and restored those from 
> > backup.  I ran my chkrootkit and installed mod_security.  
> SSH is not 
> > running so I don't know how this happened.
> 
> Perhaps your system is not as simple as you think it is.  ;-/
> 
> --keith


Thanks, Keith!

Guess I'd better brush up on my vi commands in case I have to boot from a
rescue disk. :-)

Just guessing here, but to do this, I need to add:

tmpfs /tmp tmpfs size=100M,mode=0755 0 0 
To my /etc/fstb and cross my fingers?



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