Dynamic DNS via DHCP

Scott Rowley scottro at netins.net
Fri Oct 23 13:05:21 UTC 2009


Thanks for the confirmation, the slaving was our backup plan in case
there was no simple way (or any way at all) to have DHCP update more
than one server.

Thanks again,
Scott Rowley <scottro at netins.net>
netINS Systems Administrator
> Scott Rowley wrote:
> >It looks like we've nearly got this working but we've got one last issue
> >to sort out.  We have two nameservers that need updating.  Is it
> >possible to have more than one primary or do we have to figure out some
> >other trickery?  If its not possible does anyone have any suggestions on
> >tricks to get it moved over to the second server ok?
> You can only update one DNS server from DHCP. The way most people 
> deal with multiple DNS servers is to run one as a master for the 
> zone, and one or more as slaves - using the normal zone transfer 
> mechanisms.
> It would be quite a difficult, and impractical, task for the DHCP 
> server to manage two separate updates - either of which could fail 
> and need re-trying. You could very easily end up with inconsistent 
> DNS servers.
> -- 
> Simon Hobson
> Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
> author Gladys Hobson. Novels - poetry - short stories - ideal as
> Christmas stocking fillers. Some available as e-books.
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