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.
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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:
_msdcs/dc/_sites/default-first-site-name/_tcp
_msdcs/dc/_tcp
In these locations, an SRV record is displayed for the following services:
_kerberos
_ldap
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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
_ldap._tcp.domainname
where
domainname is the name of your domain.
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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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