I inherited a domain that's 15 years old. The DNS has NEVER been scavenged. I found IP addresses from a site that hasn't existed in 11 years. I found DNS for computers and servers that haven't existed for 10 years. Basically, DNS is a mess!
I want to turn on scavenging. The powers that be want to be sure nothing will break.
So, what could break?
As I understand it, scavenging will only delete dynamically assigned IP addresses older than the specified date. Is that correct?
What unintended side effects could there be if I turn on scavenging for a DNS that's 15 years old and never had it turned on?