Define the external application traffic from vendors,
		customers, partners, etc., that can access your data center from
		the internet.
    As with the other data center traffic flows, tightly
			control traffic flowing from the internet to the data center with
			application allow security policy rules so that no traffic using
			unknown or unsanctioned applications can enter the data center.
			In addition, protect the data center web servers from denial-of-service
			(DoS) attacks by applying
			
DoS Protection policy rules (with
			
DoS Protection profiles) to external traffic destined
			for the data center web server tier.