Scenario: A Citrix Administrator configured the HTTP_Callout feature on the NetScaler using the command-line interface.
After configuring the commands, the device is facing the HTTP callout recursion issue.
Click on the Exhibit button to view the screenshot of the command-line interface.
How will the administrator rectify the issue?
To rectify the HTTP callout recursion issue, the Citrix Administrator should change the expression of the Responder policy to ensure it avoids executing the callout in a recursive loop. The correct expression should be 'HTTP.REQ.HEADER("Request").EQ("Callout Request").NOT && SYS.HTTP_CALLOUT(myCallout).CONTAINS("IP Matched")'. This prevents the system from making the HTTP callout again if the condition already matches, thus preventing recursion.
A is cotrrect: https://docs.citrix.com/en-us/netscaler/12/appexpert/http-callout/avoiding-http-callout-recursion.html
A is answer
I think D is correct, but missing syntax (saw the full answer on another site): (myCallout).CONTAINS(\"IP Matched\")".NOT