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If existing DNS tree is implemented by Windows NT 4.0 DNS, the solution is to
upgrade the Windows NT 4.0 DNS servers to the Windows 2000 implementation of
DNS.
If a non-Microsoft DNS implementation is in place and it does not support SRV RRs
and Dynamic Update, then the question is: can it be upgraded. Note: The Dynamic
Update feature is not required, but strongly recommended.
If existing non-Microsoft DNS servers can be upgraded, then perform the upgrade.
If existing non-Microsoft DNS servers cannot be upgraded, add another DNS server
that does support SRV records and dynamic updates and delegate certain zones to
this server.
On the DNS server that does not support SRV records and dynamic update,
delegate the following zones to the DNS server that does:
_tcp.<
Active Directory
domain name
>, _udp.<Active Directory domain name>, _msdcs.<Active Directory
domain name>
and _sites. <Active Directory domain name>.
On the DNS server that does support these features, create and then enable
dynamic update on each of the zones in the preceding list. Active Directory
dynamically updates the appropriate records in these zones.
The process of integrating ADS into an existing DNS infrastructure is better
understood from the following flowchart:
Windows 2000 White Paper 58