Product guide

Identifying and correcting a duplicate GUID
If you deployed the agent on an image without first removing its GUID from the registry, multiple
systems in your environment will have duplicate GUIDs. When these systems fail to communicate
with the Agent Handler, they generate sequencing errors, which indicate a GUID problem. The
Managed Systems query result type tracks the following information about these errors:
• The number of sequence errors for each system in the Managed Systems Sequence Errors
property.
• The date and time of the last sequence error in the Managed Systems Last Sequence Error
property.
The tracked information is incorporated into one or the other of the available pre-defined queries:
• Systems with High Sequence Errors
• Systems with no Recent Sequence Errors
Two predefined tasks help manage GUID problems.
• Duplicate Agent GUID - remove systems with potentially duplicated GUIDs
This task deletes the systems that have a large number of sequencing errors and classifies
the agent GUID as problematic. As a result, the agent is forced to generate a new GUID.
The threshold number of sequencing errors is set in the query Systems with High Sequence
Errors.
• Duplicate Agent GUID - Clear error count
Sequencing errors can occur occasionally for inconsequential reasons. This task clears the
count of sequencing errors in systems that have not had any recent sequencing errors. This
cleanup task does not remove any problematic GUIDs. The threshold value for defining
recent is set in the query Systems with no Recent Sequence Errors
Use this task to identify computers with GUID problems and take corrective action.
Task
For option definitions, click ? in the interface.
1 Click Menu | Automation | Server Tasks to open the Server Tasks Builder.
2 Click Edit for one or the other of the following tasks.
• Duplicate Agent GUID - Clear error count
• Duplicate Agent GUID - remove systems with potentially duplicated GUIDs
3 In the Description page, select Enabled, then click either Save or Next.
• If you click Save, the task runs with the default configuration displayed on the Actions
and Schedule tabs. If you want to configure a schedule for this task, click Next. This
allows you to review the Action settings and then set a schedule.
• If you click Next, the Actions page appears. This page has been preconfigured to
correspond to the requirements of the Duplicate Agent GUID task that you selected in
Step 2. Ensure that the following settings are displayed:
Duplicate Agent GUID - remove systems
with potentially duplicated GUIDs
Duplicate Agent GUID - Clear error
count
Run QueryRun QueryActions
Systems with High Sequence ErrorsSystems with no Recent Sequence
Errors
Query
Installing the McAfee Agent
Methods of agent deployment and installation
19McAfee Agent software version 4.5 Product Guide