External Media Detection Test

This test instantly alerts administrators if any external media device, such as a USB mass storage device, is plugged into the AD server host. Detailed diagnostics reported by the test reveal the device and the user using it. This information is very useful in high-security environments, where the use of external media devices is strictly prohibited or is allowed only for authorized personnel.

Target of the test : An Active Directory or Domain Controller

Agent deploying the test : An internal agent

Outputs of the test : One set of results for the Active Directory server being monitored

Configurable parameters for the test
Parameters Description

Test period

This indicates how often should the test be executed.


The IP address of the machine where the Active Directory is installed.


The port number through which the Active Directory communicates. The default port number is 389.

DD Frequency

Refers to the frequency with which detailed diagnosis measures are to be generated for this test. The default is 1:1. This indicates that, by default, detailed measures will be generated every time this test runs, and also every time the test detects a problem. You can modify this frequency, if you so desire. Also, if you intend to disable the detailed diagnosis capability for this test, you can do so by specifying none against DD Frequency.

Detailed Diagnosis

To make diagnosis more efficient and accurate, the eG Enterprise embeds an optional detailed diagnostic capability. With this capability, the eG agents can be configured to run detailed, more elaborate tests as and when specific problems are detected. To enable the detailed diagnosis capability of this test for a particular server, choose the On option. To disable the capability, click on the Off option.

The option to selectively enable/disable the detailed diagnosis capability will be available only if the following conditions are fulfilled:

  • The eG manager license should allow the detailed diagnosis capability
  • Both the normal and abnormal frequencies configured for the detailed diagnosis measures should not be 0.
Measurements made by the test
Measurement Description Measurement Unit Interpretation

New storage mass installation

Indicates the number of times during the last measurement period a USB mass storage device was plugged into the server.


The detailed diagnosis of this measure indicates which storage device was plugged in and by who.