TTLs' and notifies

[David Botham]

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> -----Original Message-----
> From: bind-users-bounce at isc.org [mailto:bind-users-bounce at isc.org]
> On Behalf Of Steve Foster
> Sent: Thursday, August 15, 2002 8:44 AM
> To: bind-users at isc.org
> Subject: TTLs' and notifies
> 
> 
> Hi there,
> 
> 
> if i have a domain secondaried that has a TTL of 4 days , and the
> primary server sends me a notify of an update, should my secondary
> automatically refresh the zone, and reset the TTL, or will it wait
> until the domain has expired before performing the refresh.

Steve,

Notify and TTL's are not related.  Upon receipt of a notify, the
slave will initiate a Refresh.  That is to say, it will check the
master's soa serial, and it is larger than the one the slave has
currently, the slave will perform a zone transfer.

TTL's do not count down on master/slave zones (zones for which your
name server is authoritative).  TTL's count down for information in
cache.


Dave...
> 
> many thanks
> 
> Steve
> Steve Foster
> Senior Systems Administrator
> PSINet Europe
> Work: +44 (1223) 577322
> Mobile: +44 (7720) 425911

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