Copyright (c) 1997 The Internet Software Consortium.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of The Internet Software Consortium nor the names
of its contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
This software has been written for the Internet Software Consortium
by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
Enterprises. To learn more about the Internet Software Consortium,
see ``http://www.isc.org/isc''. To learn more about Vixie
Enterprises, see ``http://www.vix.com''.
$FreeBSD: stable/10/sbin/dhclient/dhclient.leases.5 307403 2016-10-16 22:02:50Z sevan $
.Dd January 1, 1997 .Dt DHCLIENT.LEASES 5 .Os .Sh NAME .Nm dhclient.leases .Nd DHCP client lease database .Sh DESCRIPTION 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 occurrence.
p The lease file is named
a dhclient.leases. Ns Ar IFNAME , where .Ar IFNAME represents the network interface the DHCP client acquired the lease on. For example, if .Xr dhclient 8 is configured for the .Li em0 network device, the lease file will be named
a dhclient.leases.em0 .
p The format of the lease declarations is described in .Xr dhclient.conf 5 . .Sh FILES l -tag -width ".Pa /var/db/dhclient.leases. Ns Ar IFNAME" t Pa /var/db/dhclient.leases. Ns Ar IFNAME Current lease file. .El .Sh SEE ALSO .Xr dhclient.conf 5 , .Xr dhcpd.conf 5 , .Xr dhcp-options 5 , .Xr dhclient 8 , .Xr dhcpd 8 .Rs .%R "RFC 2132, RFC 2131" .Re .Sh AUTHORS .An -nosplit The .Xr dhclient 8 utility was written by .An Ted Lemon Aq Mt mellon@vix.com under a contract with Vixie Labs.
p The current implementation was reworked by .An Henning Brauer Aq Mt henning@openbsd.org .