KINIT(1)

KINIT(1) | General Commands Manual | KINIT(1)

# NAME

kinit — acquire initial tickets

# SYNOPSIS

kinit | [--afslog] [-c cachename | --cache=cachename] [-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.
-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”).
--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)

April 25, 2006 | NetBSD 7.0