Re: nameserver changing
From: Giorgos Keramidas (keramida_at_ceid.upatras.gr)
Date: 05/31/05
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Date: Wed, 1 Jun 2005 00:57:02 +0300 To: Vizion <vizion@vizion.occoxmail.com>
On 2005-05-31 14:33, Vizion <vizion@vizion.occoxmail.com> wrote:
> Hi
>
> I want to be able to automatically remove/add one or more dns servers from the
> list of dns's used as resolvers by particular machine(s) on a network which I
> control from data stored in a file in each computer.
> e.g file might contain lines such as:
> xxx.xxx.xxx.xxx remove dns xxx.xxx.xxx
> xxx.xxx.xxx.xxx add dns xxx.xxx.xxx
> None of the machines are running their own dns servers.
> The changes will be initiated by cron.
>
> Don't ask me why I need to do it -- the answer is far too complicated :-)
>
> Suggestions please
You could use the "template" file as a source and generate a shell
script that will be scp'ed and executed on each host. If you have enoug
time, you could write a Perl script that will read this format:
10.0.0.0/8 remove *
10.0.0.0/8 add 10.0.0.2
and then create one Perl script for every host. The script could be
scp'ed (if you have SSH keys set up correctly) and run remotely, with
something like:
# cat scripts/10.0.0.1.sh | ssh -l root 10.0.0.1
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