KLIST Windows Command Guide

The Windows klist command allows users to manage Kerberos tickets, view ticket information, and purge tickets from the cache. By using various options and parameters, users can perform tasks such as listing tickets in the cache, purging specific tickets, and renewing tickets. This command is essential for troubleshooting Kerberos authentication issues and managing ticket information on Windows systems.

KLIST Syntax:

klist [tickets | tgt | tgt <TargetName> | purge | purge <TargetName> | keys | purgekeys | credentials | tgt <TargetName> /EXPORT | tgt <TargetName> /PURGE | tickets /export [/f <filename>] [/e] | purge | luid <Luid> | tgt <TargetName> /renreq | tgt <TargetName> /renew [/E | /P] | tgt <TargetName> /referer <TargetName> | tgt <TargetName> /verify | tgt <TargetName> /delete | tgt <TargetName> /setpass [/P <oldpassword>] [/N <newpassword>] | tgt <TargetName> /showkeys | enttgt | initialtgt | tgt /cache | passwd /fromkey | /oncemode | /status]

Options:

Option	Description
tickets	Display ticket list
tgt	Display the current ticket-granting ticket
tgt	Display the ticket for the specified target
purge	Purge all tickets
keys	Display list of key(s) in the keytab file
purgekeys	Purge all keys from the keytab file
credentials	Display credential cache
tgt /EXPORT	Export specified ticket to a file
tgt /PURGE	Purge specific ticket
tickets /export [/f ] [/e]	Export the ticket cache to a file
purge	Purge the ticket cache
luid	Perform operation related to LUID
tgt /renreq	Renew a ticket
tgt /renew [/E	/P]
tgt /referer	Display the referrer of the ticket
tgt /verify	Verify a ticket
tgt /delete	Delete a ticket
tgt /setpass [/P ] [/N ]	Change password
tgt /showkeys	Display keys for a ticket
enttgt	Display enterprise ticket
initialtgt	Display initial ticket
tgt /cache	Perform operations related to tickets cache
passwd /fromkey	Perform password change using keys
/oncemode	Display or set the once-per-boot ticket flag
/status	Display current KDC status
tgt	Display tgt credentials

Parameters:

Parameter	Description
tgt	Name of the target for the ticket operation
/EXPORT	Export the specified ticket to a file
/PURGE	Purge the specified ticket
/f	Filename to export the tickets to
/e	Export tickets to ASCII instead of binary format
/P	Old password for changing password
/N	New password for changing password
/E	Encrypt the renewed ticket
/P	Plain text the renewed ticket
/referer	Target name to show referrer for
/verify	Ticket to verify
/delete	Ticket to delete
/setpass	Target and old/new password for changing password
/showkeys	Display keys for a ticket
/cache	Operations related to the tickets cache

Caution

Exercise caution while using klist command as it deals with Kerberos tickets and authentication tokens which are critical for security purposes.

KLIST Command Samples:

Display Current Ticket Information

klist

This command will display the current Kerberos ticket information.

Purge Kerberos Tickets

klist purge

Use this command to purge all Kerberos tickets from the cache.

Refresh Ticket Information

klist -R

Refreshes the ticket information by requesting a new TGT (Ticket Granting Ticket).

Display Ticket Information for a Specific Ticket File

klist -c ticket_file.CC

Displays the ticket information for a specific Kerberos ticket file.

List All Tickets in the Cache

klist -f

Lists all tickets in the cache including client principal, server principal, issue time, and expiry time.

Renew a Ticket in the Cache

klist -R -i <ticket_index>

Renews a specific ticket in the cache by specifying the index of the ticket.

Display Ticket Information Verbosely

klist -v

Displays the ticket information verbosely, providing additional details about the tickets in the cache.

Tip

When using the klist command in Windows, make sure to run it in a Command Prompt window with administrative privileges to avoid any permission-related issues.

KLIST FAQ:

How do I use klist in Windows?

To use the klist command in Windows, execute the following command:

klist

How can I display all the cached Kerberos tickets with klist?

To display all the cached Kerberos tickets using klist, use the following command:

klist tickets

How can I purge all cached Kerberos tickets using klist?

To purge all cached Kerberos tickets with klist, run the following command:

klist purge

How can I list the current credentials and ticket-granting tickets with klist?

To list the current credentials and ticket-granting tickets using klist, use the command:

klist cred

How do I force klist to list all credentials and tickets, including invalid ones?

To force klist to list all credentials and tickets, including invalid ones, use the command:

klist tgt /all

How can I show detailed information about all tickets, including their flags and encryption types, with klist?

To show detailed information about all tickets, including their flags and encryption types, using klist, run:

klist tgt /verbose

Applications of the KLIST Command

• View the currently cached Kerberos tickets
• Renew Kerberos tickets
• Purge (delete) Kerberos tickets
• List Kerberos tickets for a specific user
• Display detailed information about Kerberos tickets