[Zope] Domain name change and start problem

Hi! After registering my domain name, and reconfiguring my server, my Zserver will not start. I tried intalling a fresh zope, but I get the same error. I am new to linux, so I could be missing something obvious. Thanks for any suggestions. I have a x86 red-hat 6.1 system. The error I get: [root@linux zope]# Traceback (innermost last): File "/usr/local/zope/z2.py", line 493, in ? logger_object=lg) File "/usr/local/zope/ZServer/medusa/http_server.py", line 560, in __init__ ip = socket.gethostbyname (socket.gethostname()) socket.error: host not found