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resolv.conf broken on ubuntu system

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At some point that I sadly cannot identify, /etc/resolv.conf stopped being created/updated by network manager on my Ubuntu 12.04 system. The system gets an address via DHCP, and the network works just fine if I use IP addresses or if I manually put a suitable DNS server address in /etc/resolv.conf, but /etc/resolv.conf is not updated automatically any more.

I have watched the DHCP exchange with wireshark. The client requests everything it should, and the server responds with everything it should (domain, gateway etc); I see it all arriving at the eth0 interface. But /etc/resolv.conf change th not. Nor is it created anew if I simply delete it.

The problem survives a restart of Network Manager, and a complete reboot,

posted Aug 5, 2013 by Sonu Jindal

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At some point that I sadly cannot identify, /etc/resolv.conf stopped
being created/updated by network manager on my Ubuntu 12.04 system.

1 Answer

+1 vote

Is "/etc/resolv.conf" a symlink to "/run/resolvconf/resolv.conf"?

Does resolvconf run at boot? (It runs and exits so "ps ..." on a running system won't determine whetehr it's run.)

answer Aug 5, 2013 by Luv Kumar
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