Solved

How can I stop DNS registration of a secondary NIC on a domain controller?

Posted on 2009-05-07
2
378 Views
Last Modified: 2012-05-06
I have two DCs on a network of servers in a co-location facility. The colo requires each server to have a second NIC for monitoring purposes. These secondary NICs are on a completely different, isolated subnet. There should be no traffic between servers on this subnet. The problem I am running into is that the two DCs are registering both of their NICs in DNS as valid resolutions for the domain root. In other words, a DNS query for "domain.local" returns four results:
192.168.123.2 ("real" interface of server1)
192.168.123.3 ("real" interface of server2)
10.128.214.72 (monitoring interface of server1)
10.128.214.73 (monitoring interface of server2)

I think this might be causing problems for me.
How do I tell a DC to only register certain interfaces with DNS?
0
Comment
Question by:ClocktowerTech
2 Comments
 
LVL 83

Accepted Solution

by:
oBdA earned 500 total points
ID: 24326525
Open the properties of the DNS server, and make sure the DNS service is only bound to the 192 address.
A DNS server will by default register all addresses it's listening on, even if the "Don't register ..." box is ticked.
0
 
LVL 1

Expert Comment

by:mabthal
ID: 24339864
got to the external nic - tcp/ip properties - advanced - DNS tab and at the bottom uncheck "register this connection's addresses in DNS"
0

Featured Post

Use Case: Protecting a Hybrid Cloud Infrastructure

Microsoft Azure is rapidly becoming the norm in dynamic IT environments. This document describes the challenges that organizations face when protecting data in a hybrid cloud IT environment and presents a use case to demonstrate how Acronis Backup protects all data.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

On July 14th 2015, Windows Server 2003 will become End of Support, leaving hundreds of thousands of servers around the world that still run this 12 year old operating system vulnerable and potentially out of compliance in many organisations around t…
Restoring deleted objects in Active Directory has been a standard feature in Active Directory for many years, yet some admins may not know what is available.
Along with being a a promotional video for my three-day Annielytics Dashboard Seminor, this Micro Tutorial is an intro to Google Analytics API data.
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question