What generates this message: "*** SECURITY information for hostname ***"?

almost every time I use one Asus laptop I receive this email:

subject * SECURITY information for hostname *

hostname : May 17 10:50:36 : user : `浂

The symbol after the user field is always different and I don't know what this means. The installation and configuration is the same as for few other workstations, but I don't have such a notifications from them. The OS is Ubuntu 9.10.

Does anyone knows what this message is about? Thanks

Solution 1:

It is related to this issue. The user reports here that it is related to a change of hostname.

Check your /etc/hosts file and make sure you have an entry pointing to your hostname.