perlmonk.org maps to 199.5.193.8

The server's host key is not cached in the registry. You
have no guarantee that the server is the computer you
think it is.
The server's rsa2 key fingerprint is:
ssh-rsa 2048 50:1e:cc:c1:17:04:77:f4:d0:fe:ca:11:0f:f0:0f:0f
If you trust this host, hit Yes