resolv.conf
Is /etc/resolv.conf useless in Ubuntu 12.04 LTS (Precise Pangolin)?
I see that the DNS server information is stored in NetworkManager now. The nmcli command line tool can list that for you.
If I want to add one more DNS server, will adding it to /etc/resolv.conf by using the resolvconf package help?
Accepted Answer
If /etc/resolv.conf contains nameserver 127.0.0.1 then adding entries to /etc/resolvconf/resolv.conf.d/tail won’t really do anything useful.
If you are using NetworkManager then you should instead statically add nameserver addresses via network indicator: Edit Connections… | Edit… | IPv4 Settings | Additional DNS servers.
If you really want to add more entries to /etc/resolv.conf, create a /etc/resolvconf/resolv.conf.d/tail and add them there.
As with every Ubuntu release, it’s recommended to read the Ubuntu Release Notes, available here:
The Desktop and Common Infrastructure sections contain a link to
- http://www.stgraber.org/2012/02/24/dns-in-ubuntu-12-04/ covering the changes to the DNS infrastructure in 12.04.
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