I have taken over the support of an Active Directory from someone else, and have a major problem with duplicate dns entries for work stations which is causing mayhem. I have made sure that DHCP and DNS intregration is set up and working and that scavanging is set up where it should be and reduced the time for records to be scavenged BUT the records still exist. Some IP's have 5 different machine names assosiated with them. I can see that only one record has a current time stamp and all the others for that IP are much older, up to 3 years old.
When I look at the permissions of the older records there is an unknow account, which I am presuming is the computer account which created it, but now does not exist. When I look at the ownership of the record, it is owned by the unknown account.
Before I go merrily deleting records, can someone point me in another less dangerous path or is that the way to go???