Check if your hostname matches what's in /etc/hostname. If not, use:
hostname `cat /etc/hostname`
This was my problem when I saw the same error.
David R. Courtade
Amherst Systems Inc.
30 Wilson Rd.
Buffalo, N.Y. 14221
: I have just recently trying DIP on my Linuxbox. Suddenly I get this
: frustrating message when I try to fire up DIP. 'Host name lookup
: failure'. I have checked /etc/hosts, /etc/resolv.conf, /etc/host.conf
: about 4hundred times and I can't see anything wrong in them. Can anyone
: give me a hint?
: Roger Jansson