Edel SM wrote:
It seems /etc/resolv.conf is overwritten whenever I connect to the
Internet (the server acts as our Internet gateway). is this normal? As far
as I know, I shouldn't have to enter the localhost's IP in
/etc/resolv.conf since the system should default to the localhost in the
absence of any nameserver entries.
if you are accessing internet via ppp link, the script /etc/ppp/ip-up
(or ip-up.local) _might_ be causing this. your pppd assumes your
remote/peer dns as your nameserver, overwriting /etc/resolv.conf.
/etc/ppp/ip-up does call /etc/sysconfig/network-scripts/ifup-post
which replaces /etc/resolv.conf. But, normally, hosts on the local
network can find each other even after the local network is connected
to another network. Local traffic should not go through the ppp
device. Conversely, a non-local domain name should be referred to the
outside DNS via the ppp gate. A misconfiguration? Did you check using
/sbin/ifconfig?
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