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How do I create a static A record in Windows Server 2008 and 2003? I have two domain controllers and I need to specify a static A record on one of them (and have it replicate to the other) for a mail server. How can I accomplish this? Strangely it is hard to find info for it on the Internet. When I try to create a record I have to specify a TTL. When I set TTL to 0, it has no timestamp but it does not say "static" in the timestamp column.

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3 Answers

up vote 1 down vote

You're confusing the purpose of TTL.

The TTL field specifies the time that the entry is able to be cached by downstream nameservers/client systems.

1 day is a reasonable value for the TTL.

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Yes, how stupid of me... but perhaps a stupider question, how do I make a record "static" so it doesn't keep disappearing after a day or so? – jshin47 Jan 9 at 15:27
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Just create the record? – SpacemanSpiff Jan 9 at 16:06
Can you audit what's deleting the A record? It shouldn't be disappearing. – MikeyB Jan 9 at 16:20
@MikeyB, how would I go about auditing that? – jshin47 Jan 9 at 19:11
I don't know offhand but would recommending looking for the answer on ServerFault :) – MikeyB Jan 9 at 20:38
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up vote 1 down vote

Find the correct zone that it belongs in and select Action > New Host (A or AAAA record). It won't disappear. If your DCs are part of the same domain, it'll replicate the A record to the other server.

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up vote 1 down vote

I'm going to provide you this technet article that will offer a lot of information on DNS, including how to create 'A' records, which is what you want to do: http://technet.microsoft.com/en-us/library/bb727018.aspx

Also, if you create an 'A' record, it shouldn't just disappear. If it does, that's a separate issue.

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Any information about why such a record would be disappearing? Is it a replication issue? – jshin47 Jan 9 at 16:10
It really sounds like your zone may be being reloaded. Have you checked your DNS Event Log? – Ethabelle Jan 10 at 22:16
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