config root man

.\" Copyright (c) 2005 Kungliga Tekniska Högskolan
.\" (Royal Institute of Technology, Stockholm, Sweden). 
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.\" $Id: kcm.8 15497 2005-06-20 13:32:44Z lha $
.\"
.Dd May 29, 2005
.Dt KCM 8
.Os Heimdal
.Sh NAME
.Nm kcm
.Nd
is a process based credential cache for Kerberos tickets.
.Sh SYNOPSIS
.Nm
.Op Fl -cache-name= Ns Ar cachename
.Oo Fl c Ar file \*(Ba Xo
.Fl -config-file= Ns Ar file
.Xc
.Oc
.Oo Fl g Ar group \*(Ba Xo
.Fl -group= Ns Ar group
.Xc
.Oc
.Op Fl -max-request= Ns Ar size
.Op Fl -disallow-getting-krbtgt
.Op Fl -detach
.Op Fl h | Fl -help
.Oo Fl k Ar principal \*(Ba Xo
.Fl -system-principal= Ns Ar principal
.Xc
.Oc
.Oo Fl l Ar time \*(Ba Xo
.Fl -lifetime= Ns Ar time
.Xc
.Oc
.Oo Fl m Ar mode \*(Ba Xo
.Fl -mode= Ns Ar mode
.Xc
.Oc
.Op Fl n | Fl -no-name-constraints
.Oo Fl r Ar time \*(Ba Xo
.Fl -renewable-life= Ns Ar time
.Xc
.Oc
.Oo Fl s Ar path \*(Ba Xo
.Fl -socket-path= Ns Ar path
.Xc
.Oc
.Oo Xo
.Fl -door-path= Ns Ar path
.Xc
.Oc
.Oo Fl S Ar principal \*(Ba Xo
.Fl -server= Ns Ar principal
.Xc
.Oc
.Oo Fl t Ar keytab \*(Ba Xo
.Fl -keytab= Ns Ar keytab
.Xc
.Oc
.Oo Fl u Ar user \*(Ba Xo
.Fl -user= Ns Ar user
.Xc
.Oc
.Op Fl v | Fl -version
.Sh DESCRIPTION
.Nm
is a process based credential cache.
To use it, set the
.Ev KRB5CCNAME
enviroment variable to
.Ql KCM: Ns Ar uid
or add the stanza
.Bd -literal

[libdefaults]
        default_cc_name = KCM:%{uid}

.Ed
to the
.Pa /etc/krb5.conf
configuration file and make sure
.Nm kcm
is started in the system startup files.
.Pp
The
.Nm
daemon can hold the credentials for all users in the system.  Access
control is done with Unix-like permissions.  The daemon checks the
access on all operations based on the uid and gid of the user.  The
tickets are renewed as long as is permitted by the KDC's policy.
.Pp
The
.Nm
daemon can also keep a SYSTEM credential that server processes can
use to access services.  One example of usage might be an nss_ldap
module that quickly needs to get credentials and doesn't want to renew
the ticket itself. 
.Pp
Supported options:
.Bl -tag -width Ds
.It Xo
.Fl -cache-name= Ns Ar cachename
.Xc
system cache name
.It Xo
.Fl c Ar file ,
.Fl -config-file= Ns Ar file
.Xc
location of config file
.It Xo
.Fl g Ar group ,
.Fl -group= Ns Ar group
.Xc
system cache group
.It Xo
.Fl -max-request= Ns Ar size
.Xc
max size for a kcm-request
.It Xo
.Fl -disallow-getting-krbtgt
.Xc
disallow extracting any krbtgt from the
.Nm kcm
daemon.
.It Xo
.Fl -detach
.Xc
detach from console
.It Xo
.Fl h ,
.Fl -help
.Xc
.It Xo
.Fl k Ar principal ,
.Fl -system-principal= Ns Ar principal
.Xc
system principal name
.It Xo
.Fl l Ar time ,
.Fl -lifetime= Ns Ar time
.Xc
lifetime of system tickets
.It Xo
.Fl m Ar mode ,
.Fl -mode= Ns Ar mode
.Xc
octal mode of system cache
.It Xo
.Fl n ,
.Fl -no-name-constraints
.Xc
disable credentials cache name constraints
.It Xo
.Fl r Ar time ,
.Fl -renewable-life= Ns Ar time
.Xc
renewable lifetime of system tickets
.It Xo
.Fl s Ar path ,
.Fl -socket-path= Ns Ar path
.Xc
path to kcm domain socket
.It Xo
.Fl -door-path= Ns Ar path
.Xc
path to kcm door socket
.It Xo
.Fl S Ar principal ,
.Fl -server= Ns Ar principal
.Xc
server to get system ticket for
.It Xo
.Fl t Ar keytab ,
.Fl -keytab= Ns Ar keytab
.Xc
system keytab name
.It Xo
.Fl u Ar user ,
.Fl -user= Ns Ar user
.Xc
system cache owner
.It Xo
.Fl v ,
.Fl -version
.Xc
.El
.\".Sh ENVIRONMENT
.\".Sh FILES
.\".Sh EXAMPLES
.\".Sh DIAGNOSTICS
.\".Sh SEE ALSO
.\".Sh STANDARDS
.\".Sh HISTORY
.\".Sh AUTHORS
.\".Sh BUGS