How to block connections to NetScaler coming with empty User-Agent ?
Article ID: CTX230709
Updated On:
Description
Blocking requests without a "User-Agent" header is a simple step to reduce web abuse. With NetScaler Responder policy, one can achieve this in simple fashion.
Instructions
Create a "Responder Policy" with Action as RESET and Expression as follows:HTTP.REQ.HEADER("User-Agent").VALUE(0).LENGTH.EQ(0)
Additional Information
https://docs.citrix.com/ja-jp/netscaler/11/appexpert/responder.html
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