Dynamic DNS Updates with Wireless and Wired interfaces
- by Phaedrus
We have offices full of Windows & Mac users who obtain IP addresses from a Windows DHCP server, which in turn updates Dynamic DNS entries.
We are noticing major inconsistencies with the entries, and have found that the problem is occurring more on Macs than on windows, and even more when users are frequently switching from wired to wireless adapter, which makes sense, as this sequence occurs:
User enables wired adapter and registers Proper DNS
User enables wireless adapter and registers 2nd proper DNS entry
user switches off wireless manually and 2nd entry remains improperly until scavenge.
Our help desk folks rely heavily (maybe more than they should) on the dynamic entries as part of their business process. For example, the user submits a help desk ticket, and the staff member expects to be able to remote desktop to their machine by hostname, which is hyperlinked in the helpdesk ticketing app.
We have implemented multiple solutions & band-aids to different symptoms of the problems such as:
Using DNS Reservations for Macintosh PCs
Using DNS Scavenging to remove old records
Switching from a Cisco DHCP server to the Windows DHCP Server
But no matter what we do, it seems impossible to maintain perfect records.
Has anyone encountered this problem before? What is industry best practice?
Comments & Suggestions are much appreciated,
/P
