WARNING: The following packages cannot be authenticated! webmin

[trtech]

I have a Ubuntu 8.04 box that I administer remotely via ssh and Webmin. It's configured to update every day using apt. Every day I get an email that says:

/etc/cron.daily/apt:
WARNING: The following packages cannot be authenticated!
webmin

How can I authenticate the webmin package or stop the warning some other way?

Thanks!

[trtech]

I solved this by installing debian-keyring and debian-archive-keyring.

http://packages.ubuntu.com/hardy/debian-keyring
http://packages.ubuntu.com/hardy/debian-archive-keyring

sudo apt-get install debian-keyring debian-archive-keyring