Measures reported by CtxNsResPolicyTest

Responder supports protocols such as TCP, DNS (UDP), and HTTP. With responder enabled on your appliance, server responses can be based on who sends the request, where it is sent from, and other criteria with security and system management implications.

To use a responder, do the following:

• Enable a responder feature on the appliance.

• Configure a responder action. The action can be to generate a custom response, redirect a request to a different webpage, or reset a connection.

• Configure a responder policy. The policy determines the requests (traffic) on which an action has to be taken.

• Bind each policy to a bind point put it into effect. A bind point refers to an entity at which the Citrix ADC appliance examines the traffic to see if it matches a policy. For example, a bind point can be a load balancing virtual server.

If the responder feature is enabled on an appliance, then administrators will want to be alerted every time a request matches a configured policy. Most importantly, administrators will want to know if a policy evaluation results in an undefined event. This is a cue to the administrators to scrutinize the policy configuration for errors. Using the CtxNsResPolicyTest, administrators can achieve both.

This test auto-discovers responder policies and notifies administrators if there are requests matching any of these policies. Likewise, the test also reports if the evaluation of any policy results in UNDEF events. This way, the test turns the spotlight on improperly configured responder policies, thus enabling administrators to amend such policies for optimum results.

Outputs of the test: One set of results for each responder policy configured on the Citrix ADC VPX/MPX appliance being monitored.

Descriptor: Responder Policy

The measures made by this test are as follows: