Just check that your /etc/hosts looks like 127.0.0.1 localhost 127.0.1.1 Casi and your /etc/hostname looks like Casi
and you should be aok.
Just check that your /etc/hosts looks like
127.0.0.1 localhost
127.0.1.1 Casi
and your /etc/hostname looks like
Casi
and you should be aok.