.\" $Heimdal: kinit.1,v 1.20 2002/08/28 16:09:36 joda Exp $
.\" $NetBSD: kinit.1,v 1.8 2003/05/14 12:06:11 wiz Exp $
.\"
.Dd May 29, 1998
.Dt KINIT 1
.Os
.Sh NAME
.Nm kinit
.Nm kauth
.Nd acquire initial tickets
.Sh SYNOPSIS
.Nm kinit
.Op Fl 4 | Fl -524init
.Op Fl 9 | Fl -524convert
.Op Fl -afslog
.Oo Fl c Ar cachename \*(Ba Xo
.Fl -cache= Ns Ar cachename
.Xc
.Oc
.Op Fl f | Fl -forwardable
.Oo Fl t Ar keytabname \*(Ba Xo
.Fl -keytab= Ns Ar keytabname
.Xc
.Oc
.Oo Fl l Ar time \*(Ba Xo
.Fl -lifetime= Ns Ar time
.Xc
.Oc
.Op Fl p | Fl -proxiable
.Op Fl R | Fl -renew
.Op Fl -renewable
.Oo Fl r Ar time \*(Ba Xo
.Fl -renewable-life= Ns Ar time
.Xc
.Oc
.Oo Fl S Ar principal \*(Ba Xo
.Fl -server= Ns Ar principal
.Xc
.Oc
.Oo Fl s Ar time \*(Ba Xo
.Fl -start-time= Ns Ar time
.Xc
.Oc
.Op Fl k | Fl -use-keytab
.Op Fl v | Fl -validate
.Oo Fl e Ar enctypes \*(Ba Xo
.Fl -enctypes= Ns Ar enctypes
.Xc
.Oc
.Oo Fl a Ar addresses \*(Ba Xo
.Fl -extra-addresses= Ns Ar addresses
.Xc
.Oc
.Op Fl -fcache-version= Ns Ar integer
.Op Fl -no-addresses
.Op Fl -anonymous
.Op Fl -version
.Op Fl -help
.Op Ar principal Op Ar command
.Sh DESCRIPTION
.Nm
is used to authenticate to the kerberos server as
.Ar principal ,
or if none is given, a system generated default (typically your login
name at the default realm), and acquire a ticket granting ticket that
can later be used to obtain tickets for other services.
.Pp
If you have compiled
.Nm kinit
with Kerberos 4 support and you have a
Kerberos 4 server,
.Nm
will detect this and get you Kerberos 4 tickets.
.Pp
Supported options:
.Bl -tag -width Ds
.It Xo
.Fl c Ar cachename
.Fl -cache= Ns Ar cachename
.Xc
The credentials cache to put the acquired ticket in, if other than
default.
.It Xo
.Fl f ,
.Fl -forwardable
.Xc
Get ticket that can be forwarded to another host.
.It Xo
.Fl t Ar keytabname ,
.Fl -keytab= Ns Ar keytabname
.Xc
Don't ask for a password, but instead get the key from the specified
keytab.
.It Xo
.Fl l Ar time ,
.Fl -lifetime= Ns Ar time
.Xc
Specifies the lifetime of the ticket. The argument can either be in
seconds, or a more human readable string like
.Sq 1h .
.It Xo
.Fl p ,
.Fl -proxiable
.Xc
Request tickets with the proxiable flag set.
.It Xo
.Fl R ,
.Fl -renew
.Xc
Try to renew ticket. The ticket must have the
.Sq renewable
flag set, and must not be expired.
.It Fl -renewable
The same as
.Fl -renewable-life ,
with an infinite time.
.It Xo
.Fl r Ar time ,
.Fl -renewable-life= Ns Ar time
.Xc
The max renewable ticket life.
.It Xo
.Fl S Ar principal ,
.Fl -server= Ns Ar principal
.Xc
Get a ticket for a service other than krbtgt/LOCAL.REALM.
.It Xo
.Fl s Ar time ,
.Fl -start-time= Ns Ar time
.Xc
Obtain a ticket that starts to be valid
.Ar time
(which can really be a generic time specification, like
.Sq 1h )
seconds into the future.
.It Xo
.Fl k ,
.Fl -use-keytab
.Xc
The same as
.Fl -keytab ,
but with the default keytab name (normally
.Ar FILE:/etc/krb5.keytab ) .
.It Xo
.Fl v ,
.Fl -validate
.Xc
Try to validate an invalid ticket.
.It Xo
.Fl e ,
.Fl -enctypes= Ns Ar enctypes
.Xc
Request tickets with this particular enctype.
.It Xo
.Fl -fcache-version= Ns Ar version
.Xc
Create a credentials cache of version
.Nm version .
.It Xo
.Fl a ,
.Fl -extra-addresses= Ns Ar enctypes
.Xc
Adds a set of addresses that will, in addition to the systems local
addresses, be put in the ticket. This can be useful if all addresses a
client can use can't be automatically figured out. One such example is
if the client is behind a firewall. Also settable via
.Li libdefaults/extra_addresses
in
.Xr krb5.conf 5 .
.It Xo
.Fl -no-addresses
.Xc
Request a ticket with no addresses.
.It Xo
.Fl -anonymous
.Xc
Request an anonymous ticket (which means that the ticket will be
issued to an anonymous principal, typically
.Dq anonymous@REALM ) .
.El
.Pp
The following options are only available if
.Nm
has been compiled with support for Kerberos 4.
.Bl -tag -width Ds
.It Xo
.Fl 4 ,
.Fl -524init
.Xc
Try to convert the obtained Kerberos 5 krbtgt to a version 4
compatible ticket. It will store this ticket in the default Kerberos 4
ticket file.
.It Xo
.Fl 9 ,
.Fl -524convert
.Xc
only convert ticket to version 4
.It Fl -afslog
Gets AFS tickets, converts them to version 4 format, and stores them
in the kernel. Only useful if you have AFS.
.El
.Pp
The
.Ar forwardable ,
.Ar proxiable ,
.Ar ticket_life ,
and
.Ar renewable_life
options can be set to a default value from the
.Dv appdefaults
section in krb5.conf, see
.Xr krb5_appdefault 3 .
.Pp
If  a
.Ar command
is given,
.Nm kinit
will set up new credentials caches, and AFS PAG, and then run the given
command. When it finishes the credentials will be removed.
.Sh ENVIRONMENT
.Bl -tag -width Ds
.It Ev KRB5CCNAME
Specifies the default credentials cache.
.It Ev KRB5_CONFIG
The file name of
.Pa krb5.conf
, the default being
.Pa /etc/krb5.conf .
.It Ev KRBTKFILE
Specifies the Kerberos 4 ticket file to store version 4 tickets in.
.El
.\".Sh FILES
.\".Sh EXAMPLES
.\".Sh DIAGNOSTICS
.Sh SEE ALSO
.Xr kdestroy 1 ,
.Xr klist 1 ,
.Xr krb5_appdefault 3 ,
.Xr krb5.conf 5
.\".Sh STANDARDS
.\".Sh HISTORY
.\".Sh AUTHORS
.\".Sh BUGS