Ubuntu – How to override the DHCP-provided nameserver

dhcpnetworkingresolv.conf

I (think) that I've configured a static IP address in /etc/network/interfaces:

# The primary network interface 
auto eth0 
iface eth0 inet static
    address 10.1.1.2
    netmask 255.255.255.0
    network 10.1.1.0
    broadcast 10.1.1.255
    gateway 10.1.1.1

And I change the file /etc/resolv.conf to include the desired nameservers.

Then I restart networking sudo /etc/init.d/networking restart

But after some hours resolv.conf always reverts back to the DHCP nameserver.

I should also say that this is Ubuntu Server with only l0 and eth0 interfaces.

Best Answer

If you want to override or append to the name servers suggested by the DHCP server, you can configure this in /etc/dhcp/dhclient.conf, eg:

interface "eth0" {
    prepend domain-name-servers 10.0.0.2;
}

You can also do this from the "Edit Connections" control in the network indicator in Unity or GNOME.

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