BIND 8 with DYNUPDATE capabilities
Wilde, Jeff
Jeff.Wilde at westgroup.com
Wed Mar 1 13:39:44 UTC 2000
How about integrating data with an x.500 directory? The replicating the data
that way. The Active Directory is proprieatary, but the technology has been
there for years. Microsoft speaks like they are the only ones with a
directory solution and you can use no others. I'm trying to mainly justify
staying on binds dns + dynamic updates for the windows 2k environment. I
have used stability as an answer, but I think I will need more.
Jeff
-----Original Message-----
From: Jim Reid [mailto:jim at rfc1035.com]
Sent: Tuesday, February 29, 2000 6:01 PM
To: Jeff.Wilde at westgroup.com
Cc: comp-protocols-dns-bind at moderators.isc.org
Subject: Re: BIND 8 with DYNUPDATE capabilities
>>>>> "Jeff" == Wilde, Jeff <Jeff.Wilde at westgroup.com> writes:
Jeff> I know that windows 2000's dns it is integrated into the
Jeff> active directory so that you can basically have two primary
Jeff> name servers and replications is always taking place because
Jeff> of the AD. If one name server fails, the other name server
Jeff> will automaticaly keep on receiving dynamic updates and the
Jeff> replications will take place once the failed server comes
Jeff> back into service. I currently have bind 8 set up as a
Jeff> master/slave configuration. If my master was to fail, the
Jeff> dynamic updates wouldn't be handled by my slave the way I
Jeff> have it configured. Is there a way to have either
Jeff> a) two primary servers that replicate zones to each other
No. A master name server - primary is OLD jargon - is the definitive
source of DNS data for some zone. By definition it has nowhere else to
get that information other than from the zone file (or equivalent)
that it loads. If the server is master for some zone, it knows that
by implication nothing else should be master for that zone too.
Jeff> b) have master/slave setup with the higher soa value being
Jeff> replicated to the other server.
No. A name server that is master for some zone will NEVER EVER
"replicate" that zone by retrieving a copy of the zone from some slave
server. See the answer to your previous question.
W2K has its own replication protocol for Active Directory and for
ensuring that its multiple master name servers keep in sync with each
other. IIUC this protocol is proprietary to Microsoft.
Jeff> My other question is, is there a timeout on the dynamic
Jeff> updates to cancel old stale data?
No. How can the name server tell what data is old and what isn't? The
responsibility for removing stale data from the zone rests with
whatever put it there: a DHCP server, hostmaster, etc.
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