DNS and DHCP are working nicely. Host names show up in the DNS and
in-
addr.arpa records.

However, when a lease expires, the dns records are not automatically deleted. Bogus computer names used for testing stay in the DNS record

even though they have not existed for months. Also seeing a lot of
DHCP
dynamic addresses that are very old. I am using a one day lease and
many
addresses are last used three or four months ago.

Any suggestions to make expired leases delete the DHCP address and DNS

records that were auto created?