224 lines
5.6 KiB
Groff
224 lines
5.6 KiB
Groff
.\" $Id: iprop.8 21940 2007-09-28 22:28:09Z lha $
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.\"
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.\" Copyright (c) 2005 Kungliga Tekniska Högskolan
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.\" (Royal Institute of Technology, Stockholm, Sweden).
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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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.\"
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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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.\"
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.\" 3. Neither the name of the Institute nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT 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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.Dd May 24, 2005
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.Dt IPROP 8
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.Os Heimdal
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.Sh NAME
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.Nm iprop ,
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.Nm ipropd-master ,
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.Nm ipropd-slave
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.Nd
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propagate changes to a Heimdal Kerberos master KDC to slave KDCs
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.Sh SYNOPSIS
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.Nm ipropd-master
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.Oo Fl c Ar string \*(Ba Xo
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.Fl -config-file= Ns Ar string
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.Xc
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.Oc
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.Oo Fl r Ar string \*(Ba Xo
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.Fl -realm= Ns Ar string
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.Xc
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.Oc
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.Oo Fl k Ar kspec \*(Ba Xo
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.Fl -keytab= Ns Ar kspec
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.Xc
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.Oc
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.Oo Fl d Ar file \*(Ba Xo
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.Fl -database= Ns Ar file
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.Xc
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.Oc
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.Op Fl -slave-stats-file= Ns Ar file
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.Op Fl -time-missing= Ns Ar time
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.Op Fl -time-gone= Ns Ar time
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.Op Fl -detach
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.Op Fl -version
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.Op Fl -help
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.Nm ipropd-slave
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.Oo Fl c Ar string \*(Ba Xo
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.Fl -config-file= Ns Ar string
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.Xc
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.Oc
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.Oo Fl r Ar string \*(Ba Xo
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.Fl -realm= Ns Ar string
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.Xc
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.Oc
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.Oo Fl k Ar kspec \*(Ba Xo
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.Fl -keytab= Ns Ar kspec
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.Xc
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.Oc
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.Op Fl -time-lost= Ns Ar time
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.Op Fl -detach
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.Op Fl -version
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.Op Fl -help
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.Ar master
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.Pp
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.Sh DESCRIPTION
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.Nm ipropd-master
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is used to propagate changes to a Heimdal Kerberos database from the
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master Kerberos server on which it runs to slave Kerberos servers
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running
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.Nm ipropd-slave .
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.Pp
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The slaves are specified by the contents of the
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.Pa slaves
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file in the KDC's database directory, e.g.\&
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.Pa /var/heimdal/slaves .
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This has principals one per-line of the form
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.Dl iprop/ Ns Ar slave Ns @ Ns Ar REALM
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where
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.Ar slave
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is the hostname of the slave server in the given
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.Ar REALM ,
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e.g.\&
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.Dl iprop/kerberos-1.example.com@EXAMPLE.COM
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On a slave, the argument
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.Fa master
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specifies the hostname of the master server from which to receive updates.
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.Pp
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In contrast to
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.Xr hprop 8 ,
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which sends the whole database to the slaves regularly,
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.Nm
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normally sends only the changes as they happen on the master. The
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master keeps track of all the changes by assigning a version number to
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every change to the database. The slaves know which was the latest
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version they saw, and in this way it can be determined if they are in
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sync or not. A log of all the changes is kept on the master. When a
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slave is at an older version than the oldest one in the log, the whole
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database has to be sent.
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.Pp
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The changes are propagated over a secure channel (on port 2121 by
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default). This should normally be defined as
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.Dq iprop/tcp
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in
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.Pa /etc/services
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or another source of the services database. The master and slaves
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must each have access to a keytab with keys for the
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.Nm iprop
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service principal on the local host.
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.Pp
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There is a keep-alive feature logged in the master's
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.Pa slave-stats
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file (e.g.\&
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.Pa /var/heimdal/slave-stats ) .
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.Pp
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Supported options for
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.Nm ipropd-master :
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.Bl -tag -width Ds
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.It Xo
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.Fl c Ar string ,
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.Fl -config-file= Ns Ar string
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.Xc
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.It Xo
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.Fl r Ar string ,
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.Fl -realm= Ns Ar string
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.Xc
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.It Xo
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.Fl k Ar kspec ,
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.Fl -keytab= Ns Ar kspec
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.Xc
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keytab to get authentication from
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.It Xo
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.Fl d Ar file ,
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.Fl -database= Ns Ar file
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.Xc
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Database (default per KDC)
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.It Xo
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.Fl -slave-stats-file= Ns Ar file
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.Xc
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file for slave status information
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.It Xo
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.Fl -time-missing= Ns Ar time
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.Xc
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time before slave is polled for presence (default 2 min)
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.It Xo
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.Fl -time-gone= Ns Ar time
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.Xc
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time of inactivity after which a slave is considered gone (default 5 min)
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.It Xo
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.Fl -detach
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.Xc
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detach from console
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.It Xo
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.Fl -version
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.Xc
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.It Xo
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.Fl -help
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.Xc
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.El
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.Pp
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Supported options for
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.Nm ipropd-slave :
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.Bl -tag -width Ds
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.It Xo
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.Fl c Ar string ,
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.Fl -config-file= Ns Ar string
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.Xc
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.It Xo
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.Fl r Ar string ,
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.Fl -realm= Ns Ar string
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.Xc
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.It Xo
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.Fl k Ar kspec ,
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.Fl -keytab= Ns Ar kspec
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.Xc
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keytab to get authentication from
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.It Xo
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.Fl -time-lost= Ns Ar time
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.Xc
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time before server is considered lost (default 5 min)
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.It Xo
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.Fl -detach
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.Xc
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detach from console
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.It Xo
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.Fl -version
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.Xc
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.It Xo
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.Fl -help
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.Xc
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.El
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Time arguments for the relevant options above may be specified in forms
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like 5 min, 300 s, or simply a number of seconds.
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.Sh FILES
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.Pa slaves ,
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.Pa slave-stats
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in the database directory.
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.Sh SEE ALSO
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.Xr hpropd 8 ,
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.Xr hprop 8 ,
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.Xr krb5.conf 8 ,
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.Xr kdc 8 ,
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.Xr iprop-log 8 .
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