xref: /freebsd/crypto/heimdal/kadmin/kadmind.8 (revision bbd80c28)

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.\" $Id: kadmind.8,v 1.14 2003/04/06 17:47:57 lha Exp $
.\"
.Dd March 5, 2002
.Dt KADMIND 8
.Os HEIMDAL
.Sh NAME
.Nm kadmind
.Nd "server for administrative access to Kerberos database"
.Sh SYNOPSIS
.Nm
.Oo Fl c Ar file \*(Ba Xo
.Fl -config-file= Ns Ar file
.Xc
.Oc
.Oo Fl k Ar file \*(Ba Xo
.Fl -key-file= Ns Ar file
.Xc
.Oc
.Op Fl -keytab= Ns Ar keytab
.Oo Fl r Ar realm \*(Ba Xo
.Fl -realm= Ns Ar realm
.Xc
.Oc
.Op Fl d | Fl -debug
.Oo Fl p Ar port \*(Ba Xo
.Fl -ports= Ns Ar port
.Xc
.Oc
.Op Fl -no-kerberos4
.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 -debug
option causes
.Nm
to accept exactly one connection, which is useful for debugging.
.Pp
If built with krb4 support, it implements both the Heimdal Kerberos 5
administrative protocol and the Kerberos 4 protocol. Password changes
via the Kerberos 4 protocol are also performed by
.Nm kadmind ,
but 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
all
.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 Xo
.Fl c Ar file ,
.Fl -config-file= Ns Ar file
.Xc
location of config file
.It Xo
.Fl k Ar file ,
.Fl -key-file= Ns Ar file
.Xc
location of master key file
.It Xo
.Fl -keytab= Ns Ar keytab
.Xc
what keytab to use
.It Xo
.Fl r Ar realm ,
.Fl -realm= Ns Ar realm
.Xc
realm to use
.It Xo
.Fl d ,
.Fl -debug
.Xc
enable debugging
.It Xo
.Fl p Ar port ,
.Fl -ports= Ns Ar port
.Xc
ports to listen to. By default, if run as a daemon, it listens to ports
749, and 751 (if Kerberos 4 support is built and enabled), 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 set of ports.
.It Fl -no-kerberos4
make
.Nm
ignore Kerberos 4 kadmin requests.
.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 -ports Ns Li "=\*[q]+ 4711\*[q] &"
.Pp
This acl file will grant Joe all rights, and allow Mallory to view and
add host principals.
.Bd -literal -offset indent
joe/admin@EXAMPLE.COM      all
mallory/admin@EXAMPLE.COM  add,get  host/*@EXAMPLE.COM
.Ed
.\".Sh DIAGNOSTICS
.Sh SEE ALSO
.Xr kpasswd 1 ,
.Xr kadmin 8 ,
.Xr kdc 8 ,
.Xr kpasswdd 8