[ubuntu-uk] DNS - request for info/advice

[Mac]

Tony Arnold wrote:
> Is your router set up to allow management from the WAN side? If so have
> you changed the default password to something suitably obscure?

Tony >>> Thanks for your thoughts about this.  My router isn't set up to 
manage from the WAN;  and I have, anyway, replaced the default password 
as you indicate...

> My thought would be if someone had hacked your router, they are likely
> to do far more than just fudge your DNS addresses! Well, not to ones of
> a bona fide DNS provider.

Yes, I've been mulling this over, and came to the same conclusion as 
you.  I think I must have changed the DNS myself, and forgotten both why 
and that I had.  I plead senility!

>> I guess that NetworkManager will have picked up the DNS IP from the 
>> router, and written it to /etc/resolv.conf?
> 
> Correct. Strictly it will be the DHCP bit which gets invoked by Network
> Manager.

Thanks for your help.  I've already learnt a lot about DNS.  I'm going 
to follow up the articles mentioned in this blog for starters

http://anil.org.in/2008/07/06/learn-ip-networking/

to learn more about the basics.

Thanks again

Mac