Comment 2 for bug 435874

I'm also seeing this; I have static interfaces defined in /etc/network/interfaces, but the network-manager daemon overwrites /etc/resolv.conf, despite it not configuring the interface. This started occurring before the great upstart-ification of the world, because I used to be ableto work around this issue by disabling /etc/init.d/network-manager. Alas, upstart has no way to disable permanently an init script, so the network-manager daemon always starts up when booting and breaks DNS resolution.