.\"	$NetBSD: kadmind.8,v 1.7 2023/06/19 21:41:41 christos Exp $
.\"
.\" Copyright (c) 2002 - 2004 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.
.\"
.\" Id
.\"
.Dd December  8, 2004
.Dt KADMIND 8
.Os
.Sh NAME
.Nm kadmind
.Nd "server for administrative access to Kerberos database"
.Sh SYNOPSIS
.Nm
.Bk -words
.Oo Fl c Ar file \*(Ba Xo
.Fl Fl config-file= Ns Ar file
.Xc
.Oc
.Oo Fl k Ar file \*(Ba Xo
.Fl Fl key-file= Ns Ar file
.Xc
.Oc
.Op Fl Fl keytab= Ns Ar keytab
.Oo Fl r Ar realm \*(Ba Xo
.Fl Fl realm= Ns Ar realm
.Xc
.Oc
.Op Fl d | Fl Fl debug
.Oo Fl p Ar port \*(Ba Xo
.Fl Fl ports= Ns Ar port
.Xc
.Oc
.Ek
.Sh DESCRIPTION
.Nm
listens for requests for changes to the Kerberos database and performs
these, subject to permissions.  When starting, if stdin is a socket it
assumes that it has been started by
.Xr inetd 8 ,
otherwise it behaves as a daemon, forking processes for each new
connection. The
.Fl Fl debug
option causes
.Nm
to accept exactly one connection, which is useful for debugging.
.Pp
The
.Xr kpasswdd 8
daemon is responsible for the Kerberos 5 password changing protocol
(used by
.Xr kpasswd 1 ) .
.Pp
This daemon should only be run on the master server, and not on any
slaves.
.Pp
Principals are always allowed to change their own password and list
their own principal.  Apart from that, doing any operation requires
permission explicitly added in the ACL file
.Pa /var/heimdal/kadmind.acl .
The format of this file is:
.Bd -ragged
.Va principal
.Va rights
.Op Va principal-pattern
.Ed
.Pp
Where rights is any (comma separated) combination of:
.Bl -bullet -compact
.It
change-password or cpw
.It
list
.It
delete
.It
modify
.It
add
.It
get
.It
get-keys
.It
all (everything except get-keys)
.El
.Pp
And the optional
.Ar principal-pattern
restricts the rights to operations on principals that match the
glob-style pattern.
.Pp
Supported options:
.Bl -tag -width Ds
.It Fl c Ar file , Fl Fl config-file= Ns Ar file
location of config file
.It Fl k Ar file , Fl Fl key-file= Ns Ar file
location of master key file
.It Fl Fl keytab= Ns Ar keytab
what keytab to use
.It Fl r Ar realm , Fl Fl realm= Ns Ar realm
realm to use
.It Fl d , Fl Fl debug
enable debugging
.It Fl p Ar port , Fl Fl ports= Ns Ar port
ports to listen to. By default, if run as a daemon, it listens to port
749, but you can add any number of ports with this option. The port
string is a whitespace separated list of port specifications, with the
special string
.Dq +
representing the default port.
.El
.\".Sh ENVIRONMENT
.Sh FILES
.Pa /var/heimdal/kadmind.acl
.Sh EXAMPLES
This will cause
.Nm
to listen to port 4711 in addition to any
compiled in defaults:
.Pp
.D1 Nm Fl Fl ports Ns Li "=\*[q]+ 4711\*[q] &"
.Pp
This acl file will grant Joe all rights, and allow Mallory to view and
add host principals, as well as extract host principal keys (e.g., into
keytabs).
.Bd -literal -offset indent
joe/admin@EXAMPLE.COM      all
mallory/admin@EXAMPLE.COM  add,get-keys  host/*@EXAMPLE.COM
.Ed
.\".Sh DIAGNOSTICS
.Sh SEE ALSO
.Xr kpasswd 1 ,
.Xr kadmin 1 ,
.Xr kdc 8 ,
.Xr kpasswdd 8