also-notify and nsupdate doesnt work

Darcy Kevin (FCA) kevin.darcy at
Mon May 2 21:19:32 UTC 2016

Right. also-notify (on a master) versus allow-notify (on a slave). Different use cases.

									- Kevin

-----Original Message-----
From: bind-users-bounces at [mailto:bind-users-bounces at] On Behalf Of Barry Margolin
Sent: Monday, May 02, 2016 5:08 PM
To: comp-protocols-dns-bind at
Subject: Re: also-notify and nsupdate doesnt work

In article <mailman.688.1462221733.73610.bind-users at>,
 "Darcy Kevin (FCA)" <kevin.darcy at> wrote:

> Apologies if this has already been asked, but are you sending these 
> NOTIFYs from a master which is _not_ in the "masters" clause of the 
> nameserver which is receiving it? That's precisely the use case for "allow-notify"...

The use case for also-notify is when you have slave servers that aren't in the NS records of the zone. Otherwise, those slaves won't update until the Refresh timer goes off.

Barry Margolin
Arlington, MA
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