I 'm using RH 7.2 Genome in the Network Configuration I change therer are two places one for static hostname for my machine and in DNS hostname I don't know what happen when restarting my PC when connecting using dialer I can't browse the Internet also I can't use sendmail .......Server timeout cause I change hostname from </etc/hosts what I have to do to restore my Internet connection .............to restore "localhost.localdomain"