For troubleshooting information, see Troubleshooting SRV Record Registration.
  

SRV Records Registered by Net Logon



_ldap._tcp.DnsDomainName.

Allows a client to locate servers running the LDAP service in the domain of DnsDomainName.

_ldap._tcp. SiteName._sites.

DnsDomainName.

Allows a client to locate servers running the LDAP service in a domain in a site SiteName DnsDomainName. SiteName relative file name, which is stored in the Configuration container in Active Directory.

_ldap._tcp.dc._msdcs.DnsDomainName.

Allows a client to find a domain controller in the domain DnsDomainName. All DC register this SRV record.

_ldap._tcp. SiteName. _sites.dc._msdcs.DnsDomainName.

Allows a client to find a domain controller in the domain in site SiteName DnsDomainName. All DC register this SRV record.

_ldap._tcp.pdc._msdcs.DnsDomainName.

Allows a client to find a domain PDC DnsDomainName. Only PDC server registers this SRV record.

_ldap._tcp.gc._msdcs.DnsForestName.

Allows a client to find a DC in the forest DnsForestName. Only GC servers register this SRV record.

_ldap._tcp. SiteName. _sites.gc._msdcs. DnsForestName.

Allows a client to find a GC in the forest Only GC server DnsForestName. owned by this forest register this SRV record

_gc._tcp.DnsForestName.

Allows a client to find a GC in the domain. Only GC servers owned by this forest DnsForestName register this SRV record.

_gc._tcp.SiteName._sites.DnsForestName.

Allows a client to find a GC in this forest site SiteName DnsForestName. Only GC servers owned by this forest DnsForestName register this SRV record.

_ldap._tcp. DomainGuid.domains._msdcs. DnsForestName.

Allows customers to find the DC GUID. A GUID is a 128-bit unique index. Admits when DnsDomainName DnsForestName and changed.

_kerberos._tcp. DnsDomainName .

Allows clients to find a Kerberos KDC in that domain: DnsDomainName. All DC register this SRV record.

_kerberos._udp. DnsDomainName .

Same as _kerberos ._tcp. DnsDomainName only over UDP

_kerberos._tcp.SiteName._sites. DnsDomainName.

Allows clients to find a Kerberos KDC in that domain: DnsDomainName site SiteName. All DC register this SRV record.

_kerberos._tcp.dc._msdcs.DnsDomainName.

Allows clients to find a DC running a Kerberos KDC's role in that domain: DnsDomainName. All DC with the KDC log this SRV record.

_kerberos.tcp.SiteName._sites.dc._msdcs. DnsDomainName.

Allows clients to find a DC running a Kerberos KDC's role in that domain: DnsDomainName site SiteName. All DC with the KDC log this SRV record.

_kpasswd._tcp.DnsDomainName.

Kerberos Password Change allows you to search for current domain. All kerberos KDC DC (c) role of the register this SRV record

_kpasswd._udp.DnsDomainName.

Same as _kpassword ._tcp. DnsDomainName only over UDP