This article describes how to configure patch management preauthentication check using NetScaler Gateway EPA.
Complete the following steps to configure patch management preauthentication check using NetScaler Gateway EPA:
Under the NetScaler Gateway management GUI, navigate to Configuration > NetScaler Gateway > Policies > Preauthentication.

Click Add under the Preauthentication Policies tab. Enter Name of preauthentication policy, selection any existing action for Request Action or create a new one by clicking + button.

Click the OPSWAT EPA Editor link.

In the Expression Editor frame, select Windows > Patch Management > Generic Patch Management Product Scan option and then click +.

Click OK > Done and then click Create to create a preauthentication policy.

Bind the above created preauthentication policy to any Gateway virtual server for the check.