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ahab
Asked: 2011-10-21 12:25:50 +0800 CST

AD installed on subdomain, registration failing for parent domain

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Our Active Directory domain is installed on a subdomain (us.example.com). The parent domain (example.com) is for mostly linux servers located at our datacenter - for our website and other public facing services. On the primary domain controller, I am getting errors in the event viewer from NETLOGON saying the dynamic registration of various SRV records failed. It was trying to register them on the DNS SOA for the parent domain, example.com. This zone is hosted by a our domain registrar's DNS server and does not allow dynamic registration.

  1. Does this failure cause any actual problems with the operation of AD?
  2. Can I prevent this behavior? Or is there a workaround?

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For reference, here is an example of one of the errors being logged:

The dynamic registration of the DNS record '_ldap._tcp.Default-First-Site-Name._sites.dc._msdcs.example.com. 600 IN SRV 0 100 389 SERVER01DC.us.example.com.' failed on the following DNS server:  

DNS server IP address: x.x.x.x
Returned Response Code (RCODE): 1 
Returned Status Code: 9001
windows-server-2008 domain-name-system active-directory netlogon

1 Answers

  1. Your AD DNS zone should be hosted on an internal DNS server that supports SRV records and dynamic DNS. Your DC and your clients should be configured to use this server for DNS. Why is your DC pointing to your name servers at your registrar for DNS?

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