.\" $Id$ .\" .\" Copyright (c) 2005 Kungliga Tekniska Högskolan .\" (Royal Institute of Technology, Stockholm, Sweden). .\" 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 Institute 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 INSTITUTE 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 INSTITUTE 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. .\" .Dd May 24, 2005 .Dt IPROP 8 .Os Heimdal .Sh NAME .Nm iprop , .Nm ipropd-master , .Nm ipropd-slave .Nd propagate changes to a Heimdal Kerberos master KDC to slave KDCs .Sh SYNOPSIS .Nm ipropd-master .Oo Fl c Ar string \*(Ba Xo .Fl Fl config-file= Ns Ar string .Xc .Oc .Oo Fl r Ar string \*(Ba Xo .Fl Fl realm= Ns Ar string .Xc .Oc .Oo Fl k Ar kspec \*(Ba Xo .Fl Fl keytab= Ns Ar kspec .Xc .Oc .Oo Fl d Ar file \*(Ba Xo .Fl Fl database= Ns Ar file .Xc .Oc .Op Fl Fl slave-stats-file= Ns Ar file .Op Fl Fl time-missing= Ns Ar time .Op Fl Fl time-gone= Ns Ar time .Op Fl Fl detach .Op Fl Fl version .Op Fl Fl help .Nm ipropd-slave .Oo Fl c Ar string \*(Ba Xo .Fl Fl config-file= Ns Ar string .Xc .Oc .Oo Fl r Ar string \*(Ba Xo .Fl Fl realm= Ns Ar string .Xc .Oc .Oo Fl k Ar kspec \*(Ba Xo .Fl Fl keytab= Ns Ar kspec .Xc .Oc .Op Fl Fl time-lost= Ns Ar time .Op Fl Fl detach .Op Fl Fl version .Op Fl Fl help .Ar master .Sh DESCRIPTION .Nm ipropd-master is used to propagate changes to a Heimdal Kerberos database from the master Kerberos server on which it runs to slave Kerberos servers running .Nm ipropd-slave . .Pp The slaves are specified by the contents of the .Pa slaves file in the KDC's database directory, e.g.\& .Pa /var/heimdal/slaves . This has principals one per-line of the form .Dl iprop/ Ns Ar slave Ns @ Ns Ar REALM where .Ar slave is the hostname of the slave server in the given .Ar REALM , e.g.\& .Dl iprop/kerberos-1.example.com@EXAMPLE.COM On a slave, the argument .Fa master specifies the hostname of the master server from which to receive updates. .Pp In contrast to .Xr hprop 8 , which sends the whole database to the slaves regularly, .Nm normally sends only the changes as they happen on the master. The master keeps track of all the changes by assigning a version number to every change to the database. The slaves know which was the latest version they saw, and in this way it can be determined if they are in sync or not. A log of all the changes is kept on the master. When a slave is at an older version than the oldest one in the log, the whole database has to be sent. .Pp The changes are propagated over a secure channel (on port 2121 by default). This should normally be defined as .Dq iprop/tcp in .Pa /etc/services or another source of the services database. The master and slaves must each have access to a keytab with keys for the .Nm iprop service principal on the local host. .Pp There is a keep-alive feature logged in the master's .Pa slave-stats file (e.g.\& .Pa /var/heimdal/slave-stats ) . .Pp Supported options for .Nm ipropd-master : .Bl -tag -width Ds .It Fl c Ar string , Fl Fl config-file= Ns Ar string .It Fl r Ar string , Fl Fl realm= Ns Ar string .It Fl k Ar kspec , Fl Fl keytab= Ns Ar kspec keytab to get authentication from .It Fl d Ar file , Fl Fl database= Ns Ar file Database (default per KDC) .It Fl Fl slave-stats-file= Ns Ar file file for slave status information .It Fl Fl time-missing= Ns Ar time time before slave is polled for presence (default 2 min) .It Fl Fl time-gone= Ns Ar time time of inactivity after which a slave is considered gone (default 5 min) .It Fl Fl detach detach from console .It Fl Fl version .It Fl Fl help .El .Pp Supported options for .Nm ipropd-slave : .Bl -tag -width Ds .It Fl c Ar string , Fl Fl config-file= Ns Ar string .It Fl r Ar string , Fl Fl realm= Ns Ar string .It Fl k Ar kspec , Fl Fl keytab= Ns Ar kspec keytab to get authentication from .It Fl Fl time-lost= Ns Ar time time before server is considered lost (default 5 min) .It Fl Fl detach detach from console .It Fl Fl version .It Fl Fl help .El Time arguments for the relevant options above may be specified in forms like 5 min, 300 s, or simply a number of seconds. .Sh FILES .Pa slaves , .Pa slave-stats in the database directory. .Sh SEE ALSO .Xr krb5.conf 5 , .Xr hprop 8 , .Xr hpropd 8 , .Xr iprop-log 8 , .Xr kdc 8 .