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What DNS
entries (SRV Records) does Windows
2000/2003 add when you create a domain?
In order
for Active Directory to function
properly, DNS servers must provide
support for Service Location (SRV)
resource records described in
RFC 2052, A DNS RR for specifying
the location of services (DNS SRV). SRV
resource records map the name of a
service to the name of a server offering
that service. Active Directory clients
and domain controllers use SRV records
to determine the IP addresses of domain
controllers. Although not a technical
requirement of Active Directory, it is
highly recommended that DNS servers
provide support for DNS dynamic updates
described in
RFC 2136, Observations on the use of
Components of the Class A Address Space
within the Internet.
The
Windows 2000 DNS service provides
support for both SRV records and dynamic
updates. If a non-Windows 2000 DNS
server is being used, verify that it at
least supports the SRV resource record.
If not, it must be upgraded to a version
that does support the use of the SRV
resource record. For example, Windows NT
Server 4.0 DNS servers must be upgraded
to Service Pack 4 or later to support
SRV resource records. A DNS server that
supports SRV records but does not
support dynamic update must be updated
with the contents of the Netlogon.dns
file created by the Active Directory
Installation wizard while promoting a
Windows 2000 Server to a domain
controller. The Netlogon.dns file is
described in the following section. |
