RW - Primary/Secondary DNS Address In Python

I want to read the primary and secondary dns addresses from the system and want to change it to any user given address.

Is this possible through some li开发者_如何学Cbrary.

An alternative approach is that I read the /etc/resolv.conf and do the changes, which is what I've done.

BTW the current solution I have is for Ubuntu OS, and for now if I get if for the same OS also it would be fine.

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/etc/resolv.conf IS the authoritative source of DNS servers, so you better check there.

A bit off-topic, but note that it's being overriden by DHCP, so if you need to add own DNS server, you have to edit /etc/dhcp3/dhclient.conf and add there something like:

append domain-name-servers <DNS-ip>;

or

prepend domain-name-servers <DNS-ip>;

Also note that Ubuntu (at least 9.04 I'm using) supports only up to 3 DNS servers.