Dynamic DNS registration with multiple IP's

  • Thread starter Thread starter gvb
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gvb

My Active Directory server has two IP addresses. One is
a 192.168.0.0/24 address which is used to talk to the
LAN, as well as the 192.168.8.0/24 segment in another
office with it's own Active Directory server. Both
machines are the primary DNS servers for their LAN.

The other IP address on my AD server is a weird IP
address that is keyed to a peice of software installed on
the Server. I had automatically update DNS checked for
that NIC, but it would add entries for BOTH IP addresses,
as you can imagine, this caused connectivity problems.

Is there a way to leave auto update DNS on for that
adapater, but only let it update DNS for the primary IP
address?
 
In
gvb said:
My Active Directory server has two IP addresses. One is
a 192.168.0.0/24 address which is used to talk to the
LAN, as well as the 192.168.8.0/24 segment in another
office with it's own Active Directory server. Both
machines are the primary DNS servers for their LAN.

The other IP address on my AD server is a weird IP
address that is keyed to a peice of software installed on
the Server. I had automatically update DNS checked for
that NIC, but it would add entries for BOTH IP addresses,
as you can imagine, this caused connectivity problems.

Is there a way to leave auto update DNS on for that
adapater, but only let it update DNS for the primary IP
address?
Click to expand...

DNS will create host records for the DC's hostname for all addresses that
DNS is listening on if you only want one host record created for a given
address then on the interfaces tab in your DNS server set DNS to listen only
on that address.

That being said, DCs will also create blank records for all addresses on
them follow the KB below to stop this behavior but you will have to create
the blank records you need.
295328 - Private Network Interfaces on a Domain Controller Are Registered in
DNS
http://support.microsoft.com/?id=295328&FR=1
 
In
Kevin Goodknecht said:
DNS will create host records for the DC's hostname for all addresses
that DNS is listening on if you only want one host record created for
a given address then on the interfaces tab in your DNS server set DNS
to listen only on that address.

That being said, DCs will also create blank records for all addresses
on them follow the KB below to stop this behavior but you will have
to create the blank records you need.
295328 - Private Network Interfaces on a Domain Controller Are
Registered in DNS
http://support.microsoft.com/?id=295328&FR=1
Click to expand...


To add, it's not normally recommended to have mutliple NICs or IPs for a DC
due to this behavior. Reg modifications are the only way to alter it, as you
mentioned Kevin.

--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.
This posting is provided "AS IS" with no warranties.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
 
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