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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. |
