DHCLIENT.LEASES(5) BSD File Formats Manual DHCLIENT.LEASES(5)NAMEdhclient.leases — DHCP client lease database
The Internet Software 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 occur‐
The lease file is named dhclient.leases.IFNAME, where IFNAME represents
the network interface the DHCP client acquired the lease on. For exam‐
ple, if dhclient(8) is configured for the em0 network device, the lease
file will be named dhclient.leases.em0.
The format of the lease declarations is described in dhclient.conf(5).
/var/db/dhclient.leases.IFNAME Current lease file.
SEE ALSOdhclient.conf(5), dhcpd.conf(5), dhcp-options(5), dhclient(8), dhcpd(8)
RFC 2132, RFC 2131.
The dhclient(8) utility was written by Ted Lemon ⟨email@example.com⟩ under a
contract with Vixie Labs.
The current implementation was reworked by Henning Brauer
BSD January 1, 1997 BSD