Yes, that sounds very odd. I've never seen this behavior, although, honestly, there haven't been many times where I DIDN'T want a unit to register (only at home, to my ISP DNS, I choose to not register if I'm using the ISP's domain suffix.) Speaking of which, I wonder how much oddball traffic ISPs get from the default XP/2000 system configuration that attempts to register with the ISP's domain suffix. I know my ISP doesn't permit dynamic updates and unless someone manually takes this function off, I'd guess 99% of the systems send ddns update attempts to the ISP's dns.
Yes, I'd like to see that little reg location that you're describing too! Bob -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Sunday, January 27, 2008 10:03 PM To: Active Directory Admin Issues Subject: RE: Odd Dynamic DNS issues Bob, No, the adapters are not running on DHCP. None of the servers are, except for new ones that are just being built and later get static addresses. The hack that Microsoft gave us works well for stopping the behavior. Apparently, once a NIC dynamically registers itself, the registration process adds a couple keys in the local registry and the checkbox in the TCP/IP configuration no longer has any effect. There's no way to turn it off except for editing the registry, which seemed odd to me. I can't think what else might possibly be registering them but will look into that if we find it happening again. MS was actually surprised that we hadn't had the issue earlier. We wound up talking to a third tier support guy, who is the one that gave us the registry hack. Thanks for the input. Regards, Eric Harris PC/LAN Support NSRI (USA), Inc. (206)464-5194 "Fuller, Bob" <[EMAIL PROTECTED] alihan.com> To "Active Directory Admin Issues" 01/26/2008 01:26 <[email protected] AM > cc Please respond to Subject "Active Directory RE: Odd Dynamic DNS issues Admin Issues" <[EMAIL PROTECTED] nbelt-software.co m> Is something perhaps registering the 2nd address on behalf of the servers? If you're setting the individual servers to not register, it would seem reasonable to think that they're not registering. You might delete a record on the DNS server that's got the bad record, then set up a packet monitor to capture your dns traffic, just to see if it's a DDNS Update or Registration coming from somewhere other than the DNS server or the referenced server themselves. Are your DDNS set for unsecured registration? Those adapters on the 2nd net, aren't running via DHCP are they? Bob -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Thursday, January 17, 2008 12:55 PM To: Active Directory Admin Issues Cc: [EMAIL PROTECTED] Subject: Odd Dynamic DNS issues To All, If there is a better forum for this question, my apologies and thanks if you can redirect me. We have several Windows 2003 domains in our environment and utilize dynamic DNS. We have multiple internal servers which have 2 NICs in them. One NIC is on a general access subnet. The other NIC is on a private subnet used for backups with no public access to it. Over the last two weeks we have had issues with the backup IP addresses turning up in DNS even when the check box in the TCP\IP settings for registering the IP address in DNS is NOT checked. This causes DNS resolution problems, of course. The problem seems to be isolated to one Windows domain but not all servers in the domain have the problem. The DNS server is in a different domain. On the servers that have the problem, the DDNS checkbox seems to be irrelevant. The problem does not change whether we check the box or not, so enabling registration and then disabling it does not make a difference. So far as we know, no patching has been done that would affect this. We have found a registry hack that does seem to fix the problem but no one (we even called Microsoft) has been able to suggest a possible cause for this. We would like to know what is causing the problem in the interest of prevention. Ideas? Suggestions? Regards, Eric Harris PC/LAN Support NSRI (USA), Inc. (206)464-5194 ~ NEW: CounterSpy Enterprise: Centralized Antispyware - #1 in eWEEK Test! ~ ~ <http://www.sunbelt-software.com/product.cfm?id=400> ~ ~ NEW: CounterSpy Enterprise: Centralized Antispyware - #1 in eWEEK Test! ~ ~ <http://www.sunbelt-software.com/product.cfm?id=400> ~ ~ NEW: CounterSpy Enterprise: Centralized Antispyware - #1 in eWEEK Test! ~ ~ <http://www.sunbelt-software.com/product.cfm?id=400> ~ ~ NEW: CounterSpy Enterprise: Centralized Antispyware - #1 in eWEEK Test! ~ ~ <http://www.sunbelt-software.com/product.cfm?id=400> ~
