We at times have issues with DNS IP conflicts. The IP that a client actually has in DHCP does not necessarily match what is in DNS. This means stale records in DNS. If I do an ipconfig /registerdns from a client experiencing the mismatch, there is no change to the client's DNS record. I would assume that it is always supposed to replace the existing DNS record, correct?
I know we need to tweak our DHCP lease times and maybe our DNS scavenging. Our clients are mostly desktops that do not change. Please give me your opinion on the ideal settings. Currently our DHCP leases are 1 day, our DNS no-refresh interval is 7 days, and our DNS refresh interval is 7 days.