I'm also a new user, and xfce was giving me the same error until I edited the hosts file today. It used to say:
Code:
::1 localhost localhost.my.domain
127.0.0.1 localhost localhost.my.domain
Today I added the part that showed up in the error message ("Could not look up internet address for
Plato.Realm.bsd. This...."):
Code:
::1 localhost localhost.my.domain Plato.Realm.bsd
127.0.0.1 localhost localhost.my.domain Plato.Realm.bsd
I think that is in agreement with the
handbook 11.10.2.2 etc/hosts.
All I know is the error message doesn't appear anymore, and I haven't had any problems. Though I wouldn't mind hearing from someone else what xfce is trying to do with it, and if that's a proper solution.