Hello David
I belvieve that 127.0.0.1 is the loopback interface and it should look like:
127.0.0.1 localhost
You should also have an entry with your IP address like:
xxx.xxx.xxx.xxx my.domain.org myaliasname
and that should work if you have all the network settings correctly (like hostname /etc/sysconfig/network and so on.
Hope this helps.
