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KINIT(1) KINIT(1)
NAME
kinit - obtain and cache Kerberos ticket-granting ticket
SYNOPSIS
kinit [-V] [-l lifetime] [-s start_time] [-r renewable_life] [-p | -P] [-f | -F] [-a | -A] [-v] [-R]
[-k [-t keytab_file]] [-S service_name] [principal]
DESCRIPTION
kinit obtains and caches an initial ticket-granting ticket for principal. Any existing tickets for
principal are overwritten. kinit will try to acquire both Kerberos 5 and Kerberos 4 initial tickets
if the appropriate configuration information is available.
OPTIONS
-V display verbose output.
-l lifetime
requests a ticket with the lifetime lifetime. The value for lifetime must be followed immedi-ately immediately
ately by one of the following delimiters:
s seconds
m minutes
h hours
d days
as in "kinit -l 90m". You cannot mix units; a value of '3h30m' will result in an error.
If the -l option is not specified, the default ticket lifetime (configured by each site) is
used. Specifying a ticket lifetime longer than the maximum ticket lifetime (configured by
each site) results in a ticket with the maximum lifetime.
-s start_time
requests a postdated ticket, valid starting at start_time. Postdated tickets are issued with
the invalid flag set, and need to be validated by the kdc before use.
-r renewable_life
requests renewable tickets, with a total lifetime of renewable_life. The duration is in the
same format as the -l option, with the same delimiters.
-f request forwardable tickets.
-F request tickets which are not forwardable.
-p request proxiable tickets.
-P request tickets which are not proxiable.
-a request tickets containing the host's local address(es).
-A request address-less tickets.
-v requests that the ticket granting ticket in the cache (with the invalid flag set) be passed to
the kdc for validation. If the ticket is within its requested time range, the cache is
replaced with the validated ticket.
-R requests renewal of the ticket-granting ticket. Note that an expired ticket cannot be
renewed, even if the ticket is still within its renewable life. This option will only get
Kerberos 4 tickets if the kdc must support Kerberos 5 to Kerberos 4 ticket conversion.
-k [-t keytab_file]
requests a host ticket, obtained from a key in the local host's keytab file. The name and
location of the keytab file may be specified with the -t keytab_file option; otherwise the
default name and location will be used. This option will only get Kerberos 4 tickets if the
kdc must support Kerberos 5 to Kerberos 4 ticket conversion.
-S service_name
specify an alternate service name to use when getting initial tickets. (Applicable to Ker-beros Kerberos
beros 5 or if using both Kerberos 5 and Kerberos 4 with a kdc that supports Kerberos 5 to Ker-beros Kerberos
beros 4 ticket conversion.)
FILES
/etc/krb5.keytab
default location for the local host's keytab file.
SEE ALSO
klist(1), kdestroy(1), kpasswd(1), kswitch(1)
KINIT(1)
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