[CentOS] System Rebooted by 2.6.18-8.1.8.el5

Wed Mar 26 12:55:28 UTC 2008
Tom Brown <tom at ng23.net>

>
> Check if you allow write access to snmp and from whom. A reboot 
> request could have been issued via snmp.
>

it could but you'd need something to map the OID being hit to either a 
script or the reboot command