Re: Using Master as Slave at the same time
- From: "Ace Fekay [MVP]" <PleaseSubstituteMyActualFirstName&LastNameHere@xxxxxxxxxxx>
- Date: Mon, 24 Oct 2005 08:56:02 -0400
In news:%23uGoqWI2FHA.464@xxxxxxxxxxxxxxxxxxxx,
Kim Jensen <kim.jensen@xxxxxxxxxx> made this post, which I then commented
about below:
> I've got two DNS-servers, ns1 and ns2.
> The first one is configured as Master using ip 123.123.123.1 (example
> ip!) The second is configured as Slave using ip 123.123.123.2
> (example ip!) This far everyting works. All nslookups returns everyhing as
> it
> should be.
> Since we are two hosting companies using this DNS-server we both want
> our own domain showing when a reverse DNS-check is done and/or use
> our own dns-name (I want to use ns1.mycompany.com and he want
> ns1.hiscomapny.com). We were told that the easiest way to do so is to
> add an additional IP to each server and use the second IP on the
> master as a slave. So, on the Master we added 123.123.123.3, and on the
> slave we added
> 123.123.123.4 (we got many IP's).
> The idea is to use the Master DNS as Slave and the Slave as Master at
> the same time. By doing so we don't need two more servers.
>
> In the slave-DNS we added a new zone as primary-zone with the
> secondary ip (123.123.123.4) which should make this zone using the
> server as Master.
> Next step is to add the zone on the OLD master, but add the zone as a
> secondary. This is where the problem occurs.
> When the zone should be transferred from the master to slave it
> doesn't work.
> In the event viewer we get an error:
>
> Event Type: Error
> Event Source: DNS
> Event Category: None
> Event ID: 6525
> Date: 2005-10-19
> Time: 16:21:06
> User: N/A
> Computer: NS
> Description:
> A zone transfer request for the secondary zone testdns.com was
> refused by the master DNS server at 123.123.123.4. Check the zone at
> the master server 123.123.123.4 to verify that zone transfer is
> enabled to this server. To do so, use the DNS console, and select
> master server 123.123.123.4 as the applicable server, then in
> secondary zone kimsdns.com Properties, view the settings on the Zone
> Transfers tab. Based on the settings you choose, make any
> configuration adjustments there (or possibly in the Name Servers tab)
> so that a zone transfer can be made to this server.
<snipped>
>
> Kind Regards,
> Kim Jensen
If you are adding a zone on the OLD master as a secondary, but the zone
already exists as a Primary (whether you identify it with a different IP or
not), that won't work and looks at is as a duplicate zone, unless I am
misunderstanding what you are doing.
--
Ace
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Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft MVP - Windows Server Directory Services
Microsoft Certified Trainer
Infinite Diversities in Infinite Combinations.
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