DNS - Multiple computers with same IP and very old dates.

[TwistedHelixis]

Finally had time to look at the our DC's and have noticed some computers are listed with the same IP addresses. I have also noticed some entries going back to 2007.

 

I hate doing anything in DNS so would like some advice please.

 

Thanks

[pantscat]

Scavenging - turn it on...

 

https://technet.microsoft.com/en-us/library/cc759204(v=ws.10).aspx

[TwistedHelixis]

Found this - https://technet.microsoft.com/en-us/library/cc771362(v=ws.10).aspx

 

Do I just do Scavenging for the DNS Server or Scavenging for the selected zones or both?

[pantscat]

Both, set it on the server and the zones.