Windows 2000 DNS: From a Windows 2000 client, how do you trigger dynamic DNS to recreate the reverse (PTR) record for the host?

Introduction / Context:
Windows 2000 introduces dynamic DNS updates for both forward (A) and reverse (PTR) records. When a client's IP or name changes—or if DNS records are missing—you can request an immediate re-registration instead of waiting for periodic refresh. This is especially useful after restoring DNS zones or changing DHCP scopes.

Given Data / Assumptions:

• Client is Windows 2000 and participates in dynamic DNS.
• DNS zones allow secure or non-secure dynamic updates as configured.
• PTR records need to be recreated on the DNS server.

Concept / Approach:
Running ipconfig /registerdns on the client forces the DNS Client service to send dynamic update requests for the host's A and PTR records to its configured DNS server. No special server-side command is required beyond permitting updates on the zone.

Step-by-Step Solution:

Verification / Alternative check:
Use nslookup and nslookup to confirm A and PTR records now resolve correctly. Check the DNS server's event log for update entries.

Why Other Options Are Wrong:

• ‘‘ipconfig all /registerdns’’ is not a valid syntax and running it on the server is unnecessary.
• No ‘‘DNS Dynamic’’ service exists on clients.
• HOSTS files do not create PTR records in DNS and have no #DYNAMIC directive.

Common Pitfalls:
Zones set to ‘‘none’’ for dynamic updates will ignore the client's request; ensure ‘‘nonsecure and secure’’ or ‘‘secure only’’ is appropriate for your environment.

Final Answer:
Run ipconfig /registerdns from the client