Zone transfers from slaves to slaves?

Mark Andrews marka at isc.org
Thu Feb 25 01:10:44 UTC 2010


In message <4B8586A0.2030707 at isc.org>, Alan Clegg writes:
> Dan Letkeman wrote:
> 
> > I think I have a configuration issue somewhere.  It looks like from
> > the logs that my master server is notifying the slaves correctly, but
> > then the other slaves are also notifying the slaves as well.
> >=20
> > 172.16.0.100 is the master
> > 172.16.0.101 is 1st slave
> > 172.16.0.102 is 2nd slave
> 
> Zone transfers can take place between slaves as well.  If you want to
> limit the number of NOTIFY messages, you may want to look into:
> 
>    "also-notify { list; };"
> and
>    "notify explicit;"
> 
> What you are seeing is in the case where you have a master server that
> is not visible to all slaves -- slaves must be able to let their peers
> know that they themselves have been updated.

And "notify master-only;" in later versions of named.
 
> AlanC
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org



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