What about using SuperScan from Foundstone? You can set it for a class C subnet at a time, and have it only scan for port 53, and it is generally VERY fast.
http://www.foundstone.com/us/resources/proddesc/superscan.htm I prefer version 3, but version 4 is supposedly faster than version 3. Jonathan L. Raper, A+, MCSA, MCSE Technology Coordinator Eagle Physicians & Associates, PA [email protected]<BLOCKED::mailto:%[email protected]> www.eaglemds.com<BLOCKED::http://www.eaglemds.com/> ________________________________ From: Webster [mailto:[email protected]] Sent: Wednesday, September 22, 2010 4:29 PM To: NT System Admin Issues Subject: RE: Show all DNS Servers in AD What the customer is wanting is a way to list all the servers running DNS in their AD environment. The nslookup command that ASB gave shows the 5 AD DNS servers but does not show the SQL Server that is running DNS (and they don't know why that server is running DNS anyways). They are trying to see if there is a way to find if there are any other servers running DNS on their network besides telnetting to port 53 on every server. Thanks Webster From: Brian Desmond [mailto:[email protected]] Subject: RE: Show all DNS Servers in AD Andrew- The way that option works is it create an NDNC aka Application Partition and the DCs hosting DNS enlist in it. It's possible that either a) DCs without DNS are enlisted in it for replication or b) vice versa (though this may be semi-protected against). It's also possible to create custom NDNCs for DNS with custom replication scopes. I'm guessing the OP probably has a relatively small/simple environment and this is all over thinking, but, in a large AD environment there's going to be a lot of variables to actually track down a proper list. From: Andrew S. Baker [mailto:[email protected]] Subject: Re: Show all DNS Servers in AD I would think that AD has some way of tracking all DNS servers in a forest, because it allows you to replicate a zone to all DNS servers in a forest or domain. One way to get at least a partial list of DNS servers would be via NSLOOKUP nslookup -type=ns yourlocaldomain.tld ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected]<mailto:[email protected]> with the body: unsubscribe ntsysadmin ________________________________ Any medical information contained in this electronic message is CONFIDENTIAL and privileged. It is unlawful for unauthorized persons to view, copy, disclose, or disseminate CONFIDENTIAL information. This electronic message may contain information that is confidential and/or legally privileged. It is intended only for the use of the individual(s) and/or entity named as recipients in the message. If you are not an intended recipient of this message, please notify the sender immediately and delete this material from your computer. Do not deliver, distribute or copy this message, and do not disclose its contents or take any action in reliance on the information that it contains. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
