Dynamic Update of DNS Hostname?

[Kevin Darcy]

If you use the Dynamic Update protocol (RFC 2136) via some utility like
"nsupdate", then the serial number gets incremented automatically.

But, be aware, once you enable the zone for Dynamic Update, you must do
*all* of your updates through Dynamic Update. Manual zonefile updates and
Dynamic Updates don't mix very well.


- Kevin

Ian Chilton wrote:

> Hello,
>
> I am running bind-8.2.5.
>
> I was wondering if there was a way of dynamicly updating the IP on an A
> record that I could incorporate into a shell/perl script which will be
> run on the dns server.
>
> I could quite easily write a perl script to change the file itself to
> update the ip, then reload named, but I would need to +1 to the serial
> which I would not know how to do.
>
> What I want to do, is run a script from cron which checks to see if my
> home ip has changed and if it has, update it.
>
> Thanks!
>
> Ian