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.\" Copyright (c) 2002 - 2007 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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.\" $Id$
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.\"
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.Dd September 18, 2006
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.Dt KIMPERSONATE 8
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.Os Heimdal
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.Sh NAME
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.Nm kimpersonate
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.Nd impersonate a user when there exist a srvtab, keyfile or KeyFile
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.Sh SYNOPSIS
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.Nm
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.Op Fl s Ar string \*(Ba Fl Fl server= Ns Ar string
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.Op Fl c Ar string \*(Ba Fl Fl client= Ns Ar string
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.Op Fl k Ar string \*(Ba Fl Fl keytab= Ns Ar string
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.Op Fl 5 | Fl Fl krb5
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.Op Fl e Ar integer \*(Ba Fl Fl expire-time= Ns Ar integer
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.Op Fl a Ar string \*(Ba Fl Fl client-address= Ns Ar string
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.Op Fl t Ar string \*(Ba Fl Fl enc-type= Ns Ar string
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.Op Fl f Ar string \*(Ba Fl Fl ticket-flags= Ns Ar string
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.Op Fl Fl verbose
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.Op Fl Fl version
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.Op Fl Fl help
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.Sh DESCRIPTION
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The
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.Nm
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program creates a "fake" ticket using the service-key of the service.
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The service key can be read from a Kerberos 5 keytab, AFS KeyFile or
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(if compiled with support for Kerberos 4) a Kerberos 4 srvtab.
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Supported options:
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.Bl -tag -width Ds
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.It Fl s Ar string Ns , Fl Fl server= Ns Ar string
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name of server principal
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.It Fl c Ar string Ns , Fl Fl client= Ns Ar string
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name of client principal
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.It Fl k Ar string Ns , Fl Fl keytab= Ns Ar string
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name of keytab file
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.It Fl 5 Ns , Fl Fl krb5
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create a Kerberos 5 ticket
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.It Fl e Ar integer Ns , Fl Fl expire-time= Ns Ar integer
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lifetime of ticket in seconds
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.It Fl a Ar string Ns , Fl Fl client-address= Ns Ar string
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address of client
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.It Fl t Ar string Ns , Fl Fl enc-type= Ns Ar string
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encryption type
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.It Fl f Ar string Ns , Fl Fl ticket-flags= Ns Ar string
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ticket flags for krb5 ticket
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.It Fl Fl verbose
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Verbose output
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.It Fl Fl version
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Print version
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.It Fl Fl help
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.El
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.Sh FILES
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Uses
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.Pa /etc/krb5.keytab,
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.Pa /etc/srvtab
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and
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.Pa /usr/afs/etc/KeyFile
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when available and the
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.Fl k
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option is used with an appropriate prefix.
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.Sh EXAMPLES
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.Nm
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can be used in
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.Nm samba
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root preexec option
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or for debugging.
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.Nm
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-s host/hummel.e.kth.se@E.KTH.SE -c lha@E.KTH.SE -5
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will create a Kerberos 5 ticket for lha@E.KTH.SE for the host
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hummel.e.kth.se if there exists a keytab entry for it in
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.Pa /etc/krb5.keytab .
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.Sh SEE ALSO
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.Xr kinit 1 ,
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.Xr klist 1
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.Sh AUTHORS
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Love Hornquist Astrand <lha@kth.se>
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