[CentOS] resolv.conf rewritten every reboot. How to figure out who and why?

Spiro Harvey spiro at knossos.net.nz
Thu Oct 8 19:49:55 UTC 2009

> about dhcpclient. The only package I have installed that shows up in

It's called "dhclient", so searching for "dhcp" won't give you a hit on

chkconfig for dhclient too, and see what that results.

Also, look at /etc/sysconfig/network-scripts/ifcfg-eth0.

It's possible to have addresses "statically" assigned via DHCP based on
MAC addresses. If resolv.conf is getting populated by dhclient, then
I'm guessing the odds of you having a dhcp server on your network is
good. :)

In all likelihood, you have a static IP assigned in your ifcfg-eth0,
and the resolv.conf is being over-written by dhclient.

Spiro Harvey                  Knossos Networks Ltd
021-295-1923                  www.knossos.net.nz
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