What is Aging/Scavenging?

[airbourne]

In plain english please, I'm still learning DNS. I'd also like to know why I should turn it on and what settings I should use.

I have a smallish network (less than 250 IPs being served) and sometimes clients move or change a lot, causing multiple IP addresses for one host to show up in DNS.

 

[pQi]

Again and Scavenging:

Tells your DNS server how often to go out and search the zones for old client Internet Protocol records, you can set this up on how often you want your DNS server to do this by setting time limits and intervals. Old records meaning that they have been in the zone longer than the default setting of 7-8 days...