---
name: "kdestroy"
section: "1"
platform: "linux"
package: "krb5"
version: "1.22.2-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux", "freebsd"]
url: "https://new.carta.tech/kdestroy"
---

# kdestroy(1)

destroy Kerberos tickets

## NAME

kdestroy - destroy Kerberos tickets

## SYNOPSIS

**kdestroy** \[**-A**\] \[**-q**\] \[**-c** *cache\_name*\] \[**-p** *princ\_name*\]

## DESCRIPTION

The kdestroy utility destroys the user's active Kerberos authorization tickets by overwriting and deleting the credentials cache that contains them.  If the credentials cache is not specified, the default credentials cache is destroyed.

## OPTIONS

- **-A**

  Destroys all caches in the collection, if a cache collection is available.  May be used with the **-c** option to specify the collection to be destroyed.

- **-q**

  Run quietly.  Normally kdestroy beeps if it fails to destroy the user's tickets.  The **-q** flag suppresses this behavior.

- **-c** *cache\_name*

  Use *cache\_name* as the credentials (ticket) cache name and location; if this option is not used, the default cache name and location are used.

  The default credentials cache may vary between systems.  If the **KRB5CCNAME** environment variable is set, its value is used to name the default ticket cache.

- **-p** *princ\_name*

  If a cache collection is available, destroy the cache for *princ\_name* instead of the primary cache.  May be used with the **-c** option to specify the collection to be searched.

## NOTE

Most installations recommend that you place the kdestroy command in your .logout file, so that your tickets are destroyed automatically when you log out.

## ENVIRONMENT

See *kerberos* for a description of Kerberos environment variables.

## FILES

- **FILE:/tmp/krb5cc\_%{uid}**

  Default location of Kerberos 5 credentials cache

## SEE ALSO

*kinit*, *klist*, *kerberos*

## AUTHOR

MIT

## COPYRIGHT

1985-2026, MIT