They are a few things that change the /etc/resolv.conf
1. network manager. -- you should not be installing this on severs or least turn
the service off
2. if you are using dhcp, your dhcp server can configure you /etc/resolv.conf
i.e. does your /etc/dhcp.conf have the following:
Option domain-name "xxx"
Option domin-name servers xxxx, xxxxx
3. avahi-dnsd - will rewrite your /etc/resolv.conf. you can turn avahi off unless
you need to talk to mac bonjour servers
Any hoo... I add a line to /etc/rc.local to rewrite my /etc/resolv.conf each time the
machine boots, thus ensuring that my boxes always have the proper resolver configuration.
network manager is not used - it is not even installed, at least now
we are using static interfaces
avahi is not installed
its still being clouted by something and this one has me stuck - i dont
want to start working around an issue without first figuring out what
the issue is.
thanks