This, I get when I SSH in terminal to run apt-get update on the same above Ubuntu server.
Reading package lists... Done
W: GPG error: http://software.virtualmin.com virtualmin-dapper Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E8DD3FA0A0BDBCF9
W: You may want to run apt-get update to correct these problems
Seems that it is not getting access to the public key required. How do I fix that?
Status:
Closed (fixed)