225 lines
4.9 KiB
Groff
225 lines
4.9 KiB
Groff
.\" 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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.\" $Id: kcm.8 15497 2005-06-20 13:32:44Z lha $
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.\"
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.Dd May 29, 2005
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.Dt KCM 8
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.Os Heimdal
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.Sh NAME
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.Nm kcm
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.Nd
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is a process based credential cache for Kerberos tickets.
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.Sh SYNOPSIS
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.Nm
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.Op Fl -cache-name= Ns Ar cachename
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.Oo Fl c Ar file \*(Ba Xo
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.Fl -config-file= Ns Ar file
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.Xc
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.Oc
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.Oo Fl g Ar group \*(Ba Xo
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.Fl -group= Ns Ar group
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.Xc
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.Oc
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.Op Fl -max-request= Ns Ar size
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.Op Fl -disallow-getting-krbtgt
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.Op Fl -detach
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.Op Fl h | Fl -help
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.Oo Fl k Ar principal \*(Ba Xo
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.Fl -system-principal= Ns Ar principal
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.Xc
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.Oc
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.Oo Fl l Ar time \*(Ba Xo
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.Fl -lifetime= Ns Ar time
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.Xc
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.Oc
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.Oo Fl m Ar mode \*(Ba Xo
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.Fl -mode= Ns Ar mode
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.Xc
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.Oc
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.Op Fl n | Fl -no-name-constraints
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.Oo Fl r Ar time \*(Ba Xo
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.Fl -renewable-life= Ns Ar time
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.Xc
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.Oc
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.Oo Fl s Ar path \*(Ba Xo
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.Fl -socket-path= Ns Ar path
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.Xc
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.Oc
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.Oo Xo
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.Fl -door-path= Ns Ar path
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.Xc
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.Oc
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.Oo Fl S Ar principal \*(Ba Xo
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.Fl -server= Ns Ar principal
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.Xc
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.Oc
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.Oo Fl t Ar keytab \*(Ba Xo
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.Fl -keytab= Ns Ar keytab
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.Xc
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.Oc
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.Oo Fl u Ar user \*(Ba Xo
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.Fl -user= Ns Ar user
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.Xc
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.Oc
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.Op Fl v | Fl -version
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.Sh DESCRIPTION
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.Nm
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is a process based credential cache.
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To use it, set the
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.Ev KRB5CCNAME
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enviroment variable to
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.Ql KCM: Ns Ar uid
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or add the stanza
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.Bd -literal
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[libdefaults]
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default_cc_name = KCM:%{uid}
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.Ed
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to the
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.Pa /etc/krb5.conf
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configuration file and make sure
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.Nm kcm
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is started in the system startup files.
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.Pp
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The
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.Nm
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daemon can hold the credentials for all users in the system. Access
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control is done with Unix-like permissions. The daemon checks the
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access on all operations based on the uid and gid of the user. The
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tickets are renewed as long as is permitted by the KDC's policy.
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.Pp
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The
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.Nm
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daemon can also keep a SYSTEM credential that server processes can
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use to access services. One example of usage might be an nss_ldap
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module that quickly needs to get credentials and doesn't want to renew
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the ticket itself.
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.Pp
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Supported options:
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.Bl -tag -width Ds
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.It Xo
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.Fl -cache-name= Ns Ar cachename
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.Xc
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system cache name
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.It Xo
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.Fl c Ar file ,
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.Fl -config-file= Ns Ar file
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.Xc
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location of config file
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.It Xo
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.Fl g Ar group ,
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.Fl -group= Ns Ar group
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.Xc
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system cache group
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.It Xo
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.Fl -max-request= Ns Ar size
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.Xc
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max size for a kcm-request
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.It Xo
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.Fl -disallow-getting-krbtgt
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.Xc
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disallow extracting any krbtgt from the
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.Nm kcm
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daemon.
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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 h ,
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.Fl -help
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.Xc
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.It Xo
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.Fl k Ar principal ,
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.Fl -system-principal= Ns Ar principal
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.Xc
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system principal name
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.It Xo
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.Fl l Ar time ,
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.Fl -lifetime= Ns Ar time
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.Xc
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lifetime of system tickets
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.It Xo
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.Fl m Ar mode ,
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.Fl -mode= Ns Ar mode
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.Xc
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octal mode of system cache
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.It Xo
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.Fl n ,
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.Fl -no-name-constraints
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.Xc
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disable credentials cache name constraints
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.It Xo
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.Fl r Ar time ,
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.Fl -renewable-life= Ns Ar time
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.Xc
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renewable lifetime of system tickets
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.It Xo
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.Fl s Ar path ,
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.Fl -socket-path= Ns Ar path
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.Xc
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path to kcm domain socket
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.It Xo
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.Fl -door-path= Ns Ar path
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.Xc
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path to kcm door socket
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.It Xo
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.Fl S Ar principal ,
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.Fl -server= Ns Ar principal
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.Xc
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server to get system ticket for
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.It Xo
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.Fl t Ar keytab ,
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.Fl -keytab= Ns Ar keytab
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.Xc
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system keytab name
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.It Xo
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.Fl u Ar user ,
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.Fl -user= Ns Ar user
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.Xc
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system cache owner
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.It Xo
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.Fl v ,
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.Fl -version
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.Xc
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.El
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.\".Sh ENVIRONMENT
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.\".Sh FILES
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.\".Sh EXAMPLES
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.\".Sh DIAGNOSTICS
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.\".Sh SEE ALSO
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.\".Sh STANDARDS
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.\".Sh HISTORY
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.\".Sh AUTHORS
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.\".Sh BUGS
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