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check_krb5_kdc.pl (Advanced Nagios Plugins Collection)

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Compatible With
  • Nagios 1.x
  • Nagios 2.x
  • Nagios 3.x
  • Nagios 4.x
  • Nagios XI
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Checks a specific Kerberos KDC is working by getting a TGT using a keytab

Create a nagios kerberos principal and export a keytab for it to use in this check

Requirements:

- Kerberos KDC
- Kerberos Realm
- nagios kerberos principal
- exported keytab for the nagios kerberos principal
- kinit command in standard system path
Part of the Advanced Nagios Plugins Collection.

Download it here:

https://github.com/harisekhon/nagios-plugins

./check_krb5_kdc.pl --help

usage: check_krb5_kdc.pl [ options ]

-H --host KDC host ($KDC_HOST, $HOST)
-P --port KDC port ($KDC_PORT, $PORT, default: 88)
-R --realm Kerberos Realm
-k --keytab Path to Keytab exported containing principal credentials. Required
-p --principal Kerberos principal to use (default: nagios)
-r --renewable Checks we are able to retrieve a renewable TGT
-t --timeout Timeout in secs (default: 10)
-v --verbose Verbose mode (-v, -vv, -vvv ...)
-h --help Print description and usage options
-V --version Print version and exit