DHCP client lease database
dhclient(8) 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. The file is written as a log, so the last declaration is the most recent lease obtained.
The lease file is named /var/db/dhclient.leases.⟨IFNAME⟩, where "IFNAME" represents the network interface dhclient(8) acquired the lease on. For example, if dhclient(8) is configured for the em0 network device, the lease file will be named /var/db/dhclient.leases.em0,
The format of the lease declarations is described in dhclient.conf(5).
- Current lease file.
dhclient.conf(5), dhcp-options(5), dhcpd.conf(5), dhclient(8), dhcpd(8)
R. Droms, Dynamic Host Configuration Protocol, RFC 2131, March 1997.
S. Alexander and R. Droms, DHCP Options and BOOTP Vendor Extensions, RFC 2132, March 1997.
dhclient(8) was written by Ted Lemon <email@example.com> under a contract with Vixie Labs.
The current implementation was reworked by Henning Brauer <firstname.lastname@example.org>.