1.\" $OpenBSD: dhclient.leases.5,v 1.4 2004/04/15 08:59:47 jmc Exp $ 2.\" 3.\" Copyright (c) 1997 The Internet Software Consortium. 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 3. Neither the name of The Internet Software Consortium nor the names 16.\" of its contributors may be used to endorse or promote products derived 17.\" from this software without specific prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND 20.\" CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 21.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 22.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 23.\" DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR 24.\" CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26.\" LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 27.\" USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 28.\" ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 30.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31.\" SUCH DAMAGE. 32.\" 33.\" This software has been written for the Internet Software Consortium 34.\" by Ted Lemon <mellon@fugue.com> in cooperation with Vixie 35.\" Enterprises. To learn more about the Internet Software Consortium, 36.\" see ``http://www.isc.org/isc''. To learn more about Vixie 37.\" Enterprises, see ``http://www.vix.com''. 38.\" 39.\" $FreeBSD$ 40.\" 41.Dd January 1, 1997 42.Dt DHCLIENT.LEASES 5 43.Os 44.Sh NAME 45.Nm dhclient.leases 46.Nd DHCP client lease database 47.Sh DESCRIPTION 48The Internet Software Consortium DHCP client keeps a persistent 49database of leases that it has acquired that are still valid. 50The database is a free-form ASCII file containing one valid declaration 51per lease. 52If more than one declaration appears for a given lease, 53the last one in the file is used. 54The file is written as a log, so this is not an unusual occurrence. 55.Pp 56The lease file is named 57.Pa dhclient.leases . Ns Ar IFNAME , 58where 59.Ar IFNAME 60represents the network interface the DHCP client acquired the lease on. 61For example, if 62.Xr dhclient 8 63is configured for the 64.Li em0 65network device, 66the lease file will be named 67.Pa dhclient.leases.em0 . 68.Pp 69The format of the lease declarations is described in 70.Xr dhclient.conf 5 . 71.Sh FILES 72.Bl -tag -width ".Pa /var/db/dhclient.leases. Ns Ar IFNAME" 73.It Pa /var/db/dhclient.leases . Ns Ar IFNAME 74Current lease file. 75.El 76.Sh SEE ALSO 77.Xr dhclient.conf 5 , 78.Xr dhcp-options 5 , 79.Xr dhcpd.conf 5 , 80.Xr dhclient 8 , 81.Xr dhcpd 8 82.Rs 83.%R "RFC 2132, RFC 2131" 84.Re 85.Sh AUTHORS 86.An -nosplit 87The 88.Xr dhclient 8 89utility 90was written by 91.An Ted Lemon Aq Mt mellon@vix.com 92under a contract with Vixie Labs. 93.Pp 94The current implementation was reworked by 95.An Henning Brauer Aq Mt henning@openbsd.org . 96