Work with Synaptic
Each time I have installed a Mepis version, the first thing I did is to run in a
terminal: (after I have checked in Synaptic if FTP US Debian is enabled)
apt-get update
apt-get install apt-listbugs
When I want to install a program from Debian apt-listbugs checks for problem.
It works well but often I have a message ??Program or file Not Authenticated??
I want to know why I have these messages and how I can avoid them. I use only the FTP
Debian and Mepis for repositories.
I check my system with rkhunter, chkrootkit, Klamav regulary: no problem.




not authenticated
because you don't have the gpg keys for the repositories in your root keyring. There are posts here and on Mepislovers about getting the keys if you are unsure.