3.8 DCAdvertised

Use this Knowledge Script to check whether an Active Directory domain controller (DC) is being advertised to Active Directory clients. This script performs a DC Locator lookup to verify that the DC is being advertised in DNS properly. In addition, this script raises an event if the DC is not being advertised.

This script monitors the netlogon process to ensure it is advertising the correct SRV (or service) records in DNS. These records are required by Active Directory so that clients can “find” Active Directory domain controllers. If a domain controller is not properly advertised, the domain controller will be under utilized because it cannot be found.

3.8.1 Resource Objects

Active Directory domain controller

3.8.2 Default Schedule

The default interval for this script is Every 15 minutes.

3.8.3 Setting Parameter Values

Set the following parameters as needed:

Description	How to Set It
General Settings
Raise event if job fails
Event severity when job fails	Set the severity level, from 1 to 40, to indicate the importance of an event in which the DCAdvertised job fails. The default is 35.
Monitor directory service availability
Event Notification
Raise event if directory service is unavailable?	Select Yes to raise an event if the directory service is unavailable. The default is Yes.
Threshold -- Maximum percentage of disk space used	Specify the maximum percentage of logical disk space that can be used by the Active Directory database file before . The default is 80%.
Event severity when directory service is unavailable	Set the event severity level, from 1 to 40, to indicate the importance of an event in which a directory service is unavailable. The default is 10.
Data Collection
Collect data for directory service availability?	Select Yes to collect data for charts and reports. If enabled, data collection returns: 100 -- the domain controller is advertising, or 0 -- the domain controller is not advertising. The default is unselected.