On 11/29/2010 12:45 PM, Alex Dean wrote:
> I have Nagios running on a local server, and I occasionally get some emails from it with the subject "*** SECURITY information for <hostname>***".  The body of the message is just a few characters.  I've done some searching in my Nagios logs and online, and I have no idea what these emails are or what they mean.
> 
> The latest instance was last night.  I had my local network torn apart for a few hours, and when I reconnected everything, I had about 40 of these emails waiting for me.
> 
> The Nagios I'm using is from Ubuntu 9.10.  I'm using only a very few HTTP, ssh, & ping monitors.  Nothing complex at all.

sudo creates emails with subjects like that if there are security
issues, but the body of your mail is not typical of sudo. Do any of your
nagios checks use sudo as part of the check?