I was recently able to get my Mac Mini to bind to a Windows 2000 Active Directory. It is my understanding that upon reboot, the Mac tries to query the DNS server on Windows 2000 with a DNAME resource request or something to that effect.
This leads to two instances of Event 5504 in my log indicating the DNS server encountered an invalid domain name in a packet from (DNS forwarder IP). The packet was rejected. This began after I had the Mac join the domain. And is reproducible each time I reboot the Mac.
I read online that Windows 2000 and 2003 do not support DNAME resource records per RFC2672, However, Microsoft provided a hotfix to address this but I cannot find a download link for it. I am needing to find the hotfix for Windows 2000 on this issue as I think it will resolve the problem unless someone here knows another way.
This does not appear detrimental in anyway other than the Mac takes extra time to make network login available on startup. To clarify, the AD and DNS server is Windows 2000 Server, and the Mac is running OS X Mavericks 10.9.1.