From Linux Man Pages
kinit [ commands ] <principal name>
NAME
kinit - kinit is used to obtain and cache Kerberos ticket-granting tickets. This tool is similar in functionality
to the kinit tool that are commonly found in other Kerberos implementations, such as SEAM and MIT Reference
implementations.
The use must be registered as a principal with the Key Distribution Center (KDC) prior to running kinit.
DESCRIPTION
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 java.lang.System property user.home. <USER_NAME> is obtained from
java.lang.System property user.name. If <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 duke is the <USER_NAME> and /home/duke is the <USER_HOME>.
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 <USER_HOME>/krb5.keytab
If you do not specify the password using the password option on the command line, kinit will prompt you for the
password.
Note: password is 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.
COMMANDS
kinit -fp [ -c <cache_name> ] [ -k ] [ -t <keytab_filename> ] [ <principal> ] [ <password> ] [ -help ]
-f Issue a forwardable ticket.
-p Issue a proxiable ticket.
-c <cache_name> The cache name (i.e., FILE:/temp/mykrb5cc).
-k Use keytab
-t <keytab_filename> The keytab name (i.e., /home/duke/krb5.keytab).
<principal>
The principal name (i.e., duke@java.sun.com).
<password>
The principal's Kerberos password. (DO NOT SPECIFY ON COMMAND LINE OR IN A SCRIPT.)
-help Display instructions.
EXAMPLES
Requesting credentials valid for authentication from the current client host, for the default services, storing
the credentials cache in the default location (/home/duke/krb5cc_duke):
kinit duke@JAVA.SUN.COM
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:
kinit -help
SECURITY ALERT
The password flag 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 ps command, for example.
CATEGORY