Ghost DNS Entry
Posted on 2009-05-12
I recently formatted a test server that was part of my domain(mydomain.com). It had an IP of x.x.x.183. This address was given by our DHCP server that had a reservation created for it. I reloaded the machine(testdc) and promoted it to a DC in a new domain(test.com). I deleted the DHCP reservation and static assigned it the IP address of x.x.y.110. I also added 3 workstations to the domain(test.com).
testdc - x.x.y.110
test01 - x.x.y.111
test02 - x.x.y.112
test03 - x.x.y.113
From my PC in mydomain.com, I can ping all three workstations by typing "ping test01" from a cmd prompt. If I type "ping testdc", I get the machines old IP of x.x.x.183 and the ping fails. Mydomain.com has 2 DNS servers. I have checked both of them for any records with an IP of x.x.x.183. There isn't one. Also in the reverse lookup zones, all 4 test machines are listed with the correct IP's. There is no records for those machines in the forward zones. On the DNS servers and my workstation I have performed a "ipconfig /flushdns". I have also highlighted each of the DNS servers in mydomain.com, right clicked and then selected 'Clear Cache".
I am hoping to find out what I am missing. Where this record or old IP is still being referenced. Thanks in advance.