Designing Access Controls

Choose Endpoint Integrity Testing Methods

Testing Method

Advantages

Disadvantages

 

 

 

Agentless

There is no installation on the endpoint.

 

There is no user interaction.

The endpoint must have four ports (137, 138, 139, and 445) opened on its firewall.

Admin credentials for the endpoint must be known.

RPC must be running on the endpoint. (It is enabled by default on all testable endpoints.)

Requirements for Testing Methods

This section elaborates further on advantages and disadvantages of each method, as well as steps required for the method to function correctly. The following section (“Deciding Which Testing Methods to Enable” on page 3-64) helps you decide for which method or methods you will fulfill the required steps.

NAC EI Agent

The NAC 800 stores the ProCurve NAC EI agent. An end-user can download and install this agent to his or her endpoint in these ways:

Automatically before testing—For example, you can use network management tools such as Active Directory to deploy the agent to many endpoints.

Automatically at initial testing—When a NAC 800 that uses the NAC agent testing method detects an endpoint that does not have the agent, it installs the agent to the endpoint automatically. The user sees the screen in Figure 3-4, and unless he or she cancels the installation, the agent is installed permanently. The automatic installation relies on ActiveX, so it fails if the Web browser is not opened or does not allow the ActiveX content.

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HP Access Control Client Software manual Requirements for Testing Methods, NAC EI Agent