Package: dhcdbd Version: 1.14-1 Dhcdbd use dbus and dhclient to modify resolv.conf periodically (approximately hourly). I use OpenVPN for my internet connection, and there is no network-manager-openvpn package in Debian as of now. So every time dhcdbd updates the resolv.conf file, my openvpn connection is broken and i must restart openvpn (/etc/init.d/openvpn restart). Till network-manager-openvpn is not avaible in the debian repos, i suggest to use the dhcdbd "uint32 mode" 1 and/or 2.
1: turns off modification of resolv.conf 2: turns off all ifconfig actions There is an example in the README file of the dhcdbd package. I am using an up-to-date (may 23.) Debian GNU/Linux SID (unstable), kernel 2.6.15 and libc6 2.3.6-9.