Re: DNS Restart to Access Internet

Read inline please.

In news:9A9F1FB8-A638-4B27-A422-1108B18F4CF4@xxxxxxxxxxxxx,
mcrow7 <mcrow7@xxxxxxxxxxxxxxxxxxxxxxxxx> typed:
No. The other server is not a DC and is just a file, DHCP, and
Secondary AD Integrated DNS server. It is used as the secondary
server in case of failure - and this seems to be working for failover
because the clients dont notice that the first one goes down until
email starts getting bounced back.

This post is rather perplexing, there is no such thing as a Secondary AD
Integrated zone, it can be one or the other but not both ADI and Secondary.
You state that it is not a DC, but if it's not, it can't be a Global
Catalog and it cannot have an AD Integrated zone.
Best Practice would be for both to be DCs, Global Catalogs, and have AD
Integrated zones. Also, they should not both point only to themselves for
DNS, both should also point to the other for DNS as well as itself. This is
especially important for the server with Exchange, because when the server
with Exchange starts, it should have a Global Catalog available to it, so
that the Exchange services start.

IF the Second server is actually a DC, check its zone types, ADI zones will
replicate to all DCs, so there is no need for Secondary zones.
Also, If the original DC was Win2k3, there should be two zones, one named
with the AD Domain name, the other would be named _msdcs.ADDomain. If it has
these two zones make sure both DCs (if both are DCs) have both zones. If
they do not, you need to check replication, and that both DCs are properly
registered in the _msdcs.ADDomain zone. If you don't have a _msdcs.ADdomain
zone, check that the _msdcs sub domain in the ADDomain zone, is populated
with the GUID CNAME records and all SRV records for both DCs, and that the
gc._msdcs.ADDomain folder has the A records for all Global Catalogs.

You can also configure the SMTP Virtual Server with External DNS servers for
doing its lookups (Delivery tab, Advanced button, then Configure button) The
DNS servers you list here are not used by Exchange for any other purposes
other than SMTP. So you can use an ISP, Router or any reliable DNS source.



--
Best regards,
Kevin D. Goodknecht Sr. [MVP]
Hope This Helps

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