Monitoring Active Directory

Install the dcdiag.exe program from the Windows Server 2003 Support Tools.

Links:

• KB: http://support.microsoft.com/kb/892777
• Download: http://www.microsoft.com/downloads/details.aspx?FamilyId=6EC50B78-8BE1-4E81-B3BE-4E7AC4F0912D
• Download: http://www.microsoft.com/downloads/en/details.aspx?FamilyID=96a35011-fd83-419d-939b-9a772ea2df90

See Monitoring windows with NSClient++.

Make sure the module CheckExternalScripts.dll is enabled in NSC.ini

check_ad home page: http://www.itefix.no/i2/check_ad

The wrapper call dcdiag.exe and return the result.

Copy the check_ad.exe program into c:\Program Files\NSClient++\scripts\.

The program is in the check_ad-1.4.zip package.

Add check definition to the [External Scripts] section in NSC.ini, like:

[External Scripts]
...
check_ad=scripts\check_ad.exe --dc --noeventlog

Nagios command defintion:

$USER1$/check_nrpe -u -H $HOSTADDRESS$ -p $ARG1$ -c check_ad

Sample output:

AD OK - Connectivity OK, Services OK, Replications OK, Advertising OK, Fsmo OK, Rid Manager OK, Machine account OK, FRS Sysvol OK