Common use cases for firewall rules
The following common use cases illustrate how to secure web traffic to your sites and applications with firewall rules:
- Block Microsoft Exchange Autodiscover requests
 - Block requests by Threat Score
 - Challenge bad bots
 - Exempt partners from Hotlink Protection
 - Require a specific cookie
 - Require a valid HMAC token
 - Require specific HTTP headers
 - Require specific HTTP ports
 - Site administration — Require known IP addresses
 - Stop R-U-Dead-Yet? (R.U.D.Y.) attacks
 - Update firewall rules for customers or partners