The following packages cannot be authenticated

Wed Nov 30 10:57:23 UTC 2011

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Before installing samba, I received this warning:

"The following packages cannot be authenticated!"  I didn't know there
was any kind of certificate system in place.  Can someone tell me what
this means exactly, how serious is the risk and why common are
packages that can be authenticated?

Shawn Pringle
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PGP public key available at pool.sks-keyservers.net
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