How to Verify the Creation of SRV Records for a Domain Controller


This article describes how to verify SRV locator resource records for a domain controller after you install Active Directory.

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To verify SRV locator resource records for a domain controller, use the appropriate method.

Using DNS Manager

After you install Active Directory on a server running the Microsoft DNS service, you can use the DNS Manager Microsoft Management Console (MMC) snap-in to verify that the appropriate zones and resource records are created for each DNS zone. Active Directory creates its SRV records in the following folders:

In these locations, an SRV record is displayed for the following services:

Using the Netlogon Service

If you use non-Microsoft DNS servers to support Active Directory, you can verify SRV locator resource records by viewing the Netlogon.dns file located in the %SystemRoot%\System32\Config folder. You can view this Netlogon service document using a text editor. The first record that is displayed is the domain controller's Lightweight Directory Access Protocol (LDAP) SRV record in the following format

where domainname is the name of your domain.

Using Nslookup

  1. From your DNS server, type nslookup at a command prompt.
  2. Type set type=all, and then press ENTER.
  3. Type _ldap._tcp.dc._msdcs.domainname (where domainname is the name of your domain), and then press ENTER.
Nslookup returns one or more SRV service location records in the following format

hostname.domainname internet address = ipaddress

where hostname is the host name of a domain controller, domainname is the domain to which the domain controller belongs, and ipaddress is the domain controller's Internet Protocol (IP) address.


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