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WAF - Appliances

A WAF appliance will sit on the network, in front of one or more web services and inspect each packet and uses a rule base to analyse HTTP/S traffic to filter out potentially harmful traffic. Most modern firewalls incorporate a WAF as a feature set, in this category we will only look at appliances that do WAF exclusively, this will be either as a physical networking device or incorporate a virtual offering to suit your deployment needs.