check_ad - NRPE check plugin for Active Directory

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NAME

check_ad - Nagios NRPE plugin for Active Directory health check

SYNOPSIS

check_ad [--dc] [--dfsr] [--noeventlog] [--verbose] [--config config file] [--help]

DESCRIPTION

check_ad a Nagios NRPE plugin for Active Directory health check.

OPTIONS

--dc

Checks domain controller functionality by using dcdiag tool from Windows Support Tools. Following dcdiag tests are performed :

 services, replications, advertising, fsmocheck, ridmanager (not for RODCs), machineaccount, kccevent, frssysvol (2003 or later),

 frsevent (2003 or later), sysvolcheck(2008 or later), dfsrevent (2008 or later)

--dfsr

Specifies that SysVol replication uses DFS instead of FRS (Windows 2008 or later)

--noeventlog

Don't run the dc tests kccevent and frsevent, since their 24-hour scope may not be too relevant for Nagios.

--verbose

Prints dcdiag command to run.

--config config file

check_ad can be localized by using a configuration file (check_ad.config in the same directory as the plugin itself by default). This parameter can be used to specify an alternative location for the configuration file.

--help

Produces help message.

CONFIGURATION FILE

dcdiag tool used by check_ad can produce localized output. check_ad can use a configuration file to map localized dcdiag output to pre-defined scanning patterns. The default location is check_ad.config in the same directory as the plugin itself. You can use --config option to specify an alternative location. check_ad will use English language by default if there is no configuration file. Configuration file example:

 # check_ad configuration for language mappings
 # replace strings right to equal signs with your localized dcdiag/netdiag output
 [Language]
 dcdiag_connectivity            = passed test connectivity
 dcdiag_services                        = passed test services
 dcdiag_replications            = passed test replications
 dcdiag_advertising                     = passed test advertising
 dcdiag_fsmo                            = passed test fsmocheck
 dcdiag_rid                                     = passed test ridmanager
 dcdiag_machine                         = passed test machineaccount
 dcdiag_frssysvol                       = passed test frssysvol
 dcdiag_sysvolcheck                     = passed test sysvolcheck
 dcdiag_frsevent                        = passed test frsevent
 dcdiag_kccevent                        = passed test kccevent
 dcdiag_dfrsevent                       = passed test dfsrevent
 dcdiag_warning                         = warning
 dcdiag_failed                          = failed

EXIT VALUES

 0 OK
 1 WARNING
 2 CRITICAL
 3 UNKNOWN

AUTHOR

Tevfik Karagulle http://www.itefix.net

COPYRIGHT

This program is distributed under the Artistic License. https://opensource.org/licenses/artistic-license.php

VERSION

Version 1.8, October 2015

CHANGELOG

changes from 1.7

 - Better handling of multi line output (due to longer domain names for example)
 - Remove --member check as the netdiag tool is not available as of Windows 2008

changes from 1.6

 - Do not perform RID Manager checks for RODCs (Read-Only Domain Controllers)

changes from 1.5

 - Windows 2012 server support
 - Use Windows version information directly
 - make localized string checks in lowercase

changes from 1.4

 - Add command line option 'dfsr'
 - --verbose option to print dcdiag/netdiag commands generated
 - introducing configuration file for handling localized output
 - --config option to specify an alternative location for the configuration file
 - member checks on W2008 systems are not performed due to non-availability of netdiag

changes from 1.3

 - Windows 2008 support (checks are done in lowercase only)
 - Dropped member test 'trust' as it requires domain admin privileges thus introducing a security weakness.
 - Introducing option 'nokerberos' due to netdiag bug (see Microsoft KB870692)

changes from 1.2

 - Add command line option 'noeventlog'.

changes from 1.1

 - Support for Windows 2000 domains
 - Use CRITICAL instead of ERROR

changes from 1.0

 - remove sysevent test as it can be many other event producers than active directory.

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