October 20th, 2004, 09:28 AM
NEWBIE PROBLEM: DNS and Active Directory
I have recently joined a company who originally had three Domain Controllers but have since reduced that number to just two.
Additionally, we have installed SurfControl WebFilter which retrieves the username of whoever is logged onto a machine (using EUM - Enterprise User Management - an application that came with WebFilter and which was installed on the Domain Controllers). For example:
USERNAME: domain/bri LAST IP: 10.2.2.1
USERNAME: domain/administrator LAST IP: 10.2.2.2
The problem is that nearly a third of the users on our LAN are not having their usernames resolved, and are instead showing records like this:
USERNAME: 10.2.2.1 LAST IP: 10.2.2.1
USERNAME: 10.2.2.2 LAST IP: 10.2.2.2
I am assuming that the reason why these IP addresses aren't being resolved is because they were formerly managed by the Active Directory that we are no longer using.
Am I on the right track? How do I begin to solve this problem?
Many thanks if you can help,
October 20th, 2004, 10:23 AM
Create a reverse zone for the appropriate IP blocks and assign a PTR record for each IP you want to assign a domain (or username if you prefer) to. At least, that's the DNS solution. username or computername or whatever resolution is typically handled by NetBIOS - which I know little about.