The Internet Systems Consortium DHCP client keeps a persistent
database of leases that it has acquired that are still valid. The
database is a free-form ASCII file containing one valid declaration
per lease. If more than one declaration appears for a given lease,
the last one in the file is used. The file is written as a log, so
this is not an unusual occurrance.
The format of the lease declarations is described in
dhclient.conf(5).
dhclient(8)
was written by Ted Lemon
under a contract with Vixie Labs. Funding
for this project was provided by Internet Systems Consortium.
Information about Internet Systems Consortium can be found at
http://www.isc.org.