DDNS Best practices in a complex environment?

[jmc]

--- Matus UHLAR - fantomas [Tue, Sep 30, 2008 at 01:59:25PM +0200]: --- 
> > On Sep 25 2008, Jeffrey Collyer wrote:
> > 
> > >Is there a best practices guide anywhere for Dynamic DNS?  Basically I'm 
> > >looking for information about how folks have rolled out Dynamic DNS in a 
> > >large ISP like environment (University).
> 
> On 25.09.08 20:48, Chris Thompson wrote:
> > By "Dynamic DNS", many people assume one means "updates by DHCP servers",
> > but technically all it means is updating DNS zones incrementally rather
> > than by complete replacement. You might want to clarify your requirements.
> 
> I thought it means updating DNS via DNS requests (by DHCP or not), while
> updating incrementally means something different (IXFR)

IXFR is incremental zone transfers.

Dynamic DNS to me means one of two things. having clients that obtain
their IP addresses via DHCP update their own records in the zone, or
having the DHCP server update the records on the client's behalf.

depending on how homogeneous your environment, there are probably a few
different ways to attack the problem.