2005-06-07 04:05:09 +00:00
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.\" $OpenBSD: dhclient.leases.5,v 1.4 2004/04/15 08:59:47 jmc Exp $
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.\"
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.\" Copyright (c) 1997 The Internet Software Consortium.
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\"
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of The Internet Software Consortium nor the names
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.\" of its contributors may be used to endorse or promote products derived
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.\" from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
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.\" CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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.\" DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
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.\" CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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.\" LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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.\" USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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.\" ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" This software has been written for the Internet Software Consortium
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.\" by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
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.\" Enterprises. To learn more about the Internet Software Consortium,
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.\" see ``http://www.isc.org/isc''. To learn more about Vixie
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.\" Enterprises, see ``http://www.vix.com''.
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.\"
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2005-06-22 14:55:59 +00:00
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.\" $FreeBSD$
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.\"
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2005-06-07 04:05:09 +00:00
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.Dd January 1, 1997
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.Dt DHCLIENT.LEASES 5
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.Os
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.Sh NAME
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.Nm dhclient.leases
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.Nd DHCP client lease database
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.Sh DESCRIPTION
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The Internet Software Consortium DHCP client keeps a persistent
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database of leases that it has acquired that are still valid.
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The database is a free-form ASCII file containing one valid declaration
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per lease.
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If more than one declaration appears for a given lease,
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the last one in the file is used.
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The file is written as a log, so this is not an unusual occurrence.
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.Pp
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The lease file is named
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.Pa dhclient.leases. Ns Ar IFNAME ,
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where
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.Ar IFNAME
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represents the network interface the DHCP client acquired the lease on.
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For example, if
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.Xr dhclient 8
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is configured for the
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.Li em0
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network device,
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the lease file will be named
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.Pa dhclient.leases.em0 .
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.Pp
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The format of the lease declarations is described in
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.Xr dhclient.conf 5 .
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.Sh FILES
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.Bl -tag -width ".Pa /var/db/dhclient.leases. Ns Ar IFNAME"
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.It Pa /var/db/dhclient.leases. Ns Ar IFNAME
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Current lease file.
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.El
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.Sh SEE ALSO
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.Xr dhclient.conf 5 ,
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.Xr dhcpd.conf 5 ,
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.Xr dhcp-options 5 ,
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.Xr dhclient 8 ,
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.Xr dhcpd 8
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.Rs
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.%R "RFC 2132, RFC 2131"
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.Re
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.Sh AUTHORS
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.An -nosplit
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The
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.Xr dhclient 8
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utility
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was written by
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.An Ted Lemon Aq mellon@vix.com
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under a contract with Vixie Labs.
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.Pp
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The current implementation was reworked by
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.An Henning Brauer Aq henning@openbsd.org .
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