NAME
kinit kauth – acquire initial tickets
SYNOPSIS
kinit [-4 | --524init] [-9 | --524convert] [--afslog] [-c cachename --cache=cachename] [-f | --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] [--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.
If you have compiled kinit with Kerberos 4 support and you have a Kerberos 4 server, kinit will detect this and get you Kerberos 4 tickets.
Supported options:
-
-c cachename --cache=cachename The credentials cache to put the acquired ticket in, if other than default.
-
-f, --forwardable Get ticket that can be forwarded to another host.
-
-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”).
The following options are only available if kinit has been compiled with support for Kerberos 4.
-
-4, --524init 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.
-
-9, --524convert only convert ticket to version 4
- --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.