How to drop illegal hostname contained request in NetScaler Gateway with responder policy

This article will describe how to configure responder policy to drop illegal hostname contained request in a NetScaler Gateway. e.g."nsg.lab.local" is the FQDN of NetScaler Gateway, to block user from accessing the gateway with other URLs, like IP address or other FQDN with tempering DNS records...

K30291321: The attack signature check may fail to detect and block illegal requests for a case-insensitive policy

Security Advisory Description The web application firewall attack signature check may fail to detect and block illegal requests. This issue occurs when all of the following conditions are met: You are using one of the following web application firewall products: Advanced WAF or BIG-IP ASM 11.6.0 ...