kinit is used to obtain and cache Kerberos ticket-granting tickets. This tool is similar in functionality to the kinit tools commonly found in other Kerberos implementations, such as SEAM and MIT Reference implementations.
The user must be registered as a principal with the Key Distribution Center (KDC) prior to running kinit.
kinit [ commands ] <principal name>
By default, for all Unix platforms a cache file named
/tmp/krb5cc_<uid>will be generated.
<uid>is the user identification number of the user logged into the system. For all other platforms, a cache file named
<USER_HOME>/krb5cc_<USER_NAME>would be generated.
<USER_HOME>is obtained from the
<USER_NAME>is obtained from
<USER_HOME>is null, the cache file would be stored in the current directory that the program is running from.
<USER_NAME>is the operating system's login username. This username could be different than the user's principal name. For example on Solaris, it could be
/home/duke/krb5cc_duke, in which
By default, the keytab name is retrieved from the Kerberos configuration file. If the keytab name is not specifed in the Kerberos configuration file, the name is assumed to be
If you do not specify the password using the
passwordoption on the command line, kinit will prompt you for the password.
passwordis provided only for testing purposes. Do not place your password in a script or provide your password on the command line. Doing so will compromise your password.
For more information see the man pages for kinit.
kinit -fp [-c <cache_name>] [-k] [-t <keytab_filename>] [<principal>] [<password>] [-help]
Command Option Description
Issue a forwardable ticket.
Issue a proxiable ticket.
The cache name (i.e.,
The keytab name (i.e,
The principal name (i.e.,
The principal's Kerberos password.
(DO NOT SPECIFY ON COMMAND LINE OR IN A SCRIPT.)
Requesting credentials valid for authentication from the current client host, for the default services, storing the credentials cache in the default location (
Requesting proxiable credentials for a different principal and storing these credentials in a specified file cache:
kinit -p -c FILE:/home/duke/credentials/krb5cc_cafebeef cafebeef@JAVA.SUN.COM
Requesting proxiable and forwardable credentials for a different principal and storing these credentials in a specified file cache:
kinit -f -p -c FILE:/home/duke/credentials/krb5cc_cafebeef cafebeef@JAVA.SUN.COM
Displaying the help menu for kinit:
passwordflag is for testing purposes only. Do not specify your password on the command line. Doing so is a security hole since an attacker could discover your password while running the Unix
pscommand, for example.