KINIT(1) General Commands Manual KINIT(1)
NAME
kinit – acquire initial tickets
SYNOPSIS
kinit [--afslog] [-c cachename | --cache=cachename] [--canonicalize]
[-f | --no-forwardable] [-t keytabname | --keytab=keytabname]
[-l time | --lifetime=time] [-p | --proxiable] [-R | --renew]
[--renewable] [-r time | --renewable-life=time]
[-S principal | --server=principal] [-s time | --start-time=time]
[-k | --use-keytab] [-v | --validate]
[-e enctypes | --enctypes=enctypes]
[-a addresses | --extra-addresses=addresses]
[--password-file=filename] [--fcache-version=version-number]
[-A | --no-addresses] [--anonymous] [--enterprise] [--version]
[--help] [principal [command]]
DESCRIPTION
kinit is used to authenticate to the Kerberos server as 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.
Supported options:
-c cachename --cache=cachename
The credentials cache to put the acquired ticket in, if other than
default.
-canonicalize
ask the KDC canonicalize the client name and server name. Useful
with enterprise names, PK-INIT, and LKDC realms when the user
doesn't know its real kerberos user name.
-f, --forwardable
Get ticket that can be forwarded to another host.
-t keytabname, --keytab=keytabname
-f --no-forwardable
Get ticket that can be forwarded to another host, or if the
negative flags use, don't get a forwardable flag.
-t keytabname, --keytab=keytabname
Don't ask for a password, but instead get the key from the
specified keytab.
-l time, --lifetime=time
Specifies the lifetime of the ticket. The argument can either be
in seconds, or a more human readable string like ‘1h’.
-p, --proxiable
Request tickets with the proxiable flag set.
-R, --renew
Try to renew ticket. The ticket must have the ‘renewable’ flag
set, and must not be expired.
--renewable
The same as --renewable-life, with an infinite time.
-r time, --renewable-life=time
The max renewable ticket life.
-S principal, --server=principal
Get a ticket for a service other than krbtgt/LOCAL.REALM.
-s time, --start-time=time
Obtain a ticket that starts to be valid time (which can really be a
generic time specification, like ‘1h’) seconds into the future.
-k, --use-keytab
The same as --keytab, but with the default keytab name (normally
FILE:/etc/krb5.keytab).
-v, --validate
Try to validate an invalid ticket.
-e, --enctypes=enctypes
Request tickets with this particular enctype.
--password-file=filename
read the password from the first line of filename. If the filename
is STDIN, the password will be read from the standard input.
--fcache-version=version-number
Create a credentials cache of version version-number.
-a, --extra-addresses=enctypes
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 libdefaults/extra_addresses in krb5.conf(5).
-A, --no-addresses
Request a ticket with no addresses.
--anonymous
Request an anonymous ticket (which means that the ticket will be
issued to an anonymous principal, typically “anonymous@REALM”).
-V, --verbose
Print slightly more verbose output from kinit when successful.
--enterprise
Parse principal as a enterprise (KRB5-NT-ENTERPRISE) name.
Enterprise names are email like principals that are stored in the
name part of the principal, and since there are two @ characters
the parser needs to know that the first is not a realm. An example
of an enterprise name is “lha@e.kth.se@KTH.SE”, and this option is
usually used with canonicalize so that the principal returned from
the KDC will typically be the real principal name.
--afslog
Gets AFS tickets, converts them to version 4 format, and stores
them in the kernel. Only useful if you have AFS.
The forwardable, proxiable, ticket_life, and renewable_life options can be
set to a default value from the appdefaults section in krb5.conf, see
krb5_appdefault(3).
If a command is given, kinit will set up new credentials caches, and AFS
PAG, and then run the given command. When it finishes the credentials will
be removed.
ENVIRONMENT
KRB5CCNAME
Specifies the default credentials cache.
KRB5_CONFIG
The file name of krb5.conf, the default being /etc/krb5.conf.
KRBTKFILE
Specifies the Kerberos 4 ticket file to store version 4 tickets in.
SEE ALSO
kdestroy(1), klist(1), krb5_appdefault(3), krb5.conf(5), ktutil(8)
HEIMDAL April 25, 2006 HEIMDAL