Application Firewall

Definition - What does Application Firewall mean?

An application firewall is a type of firewall that scans, monitors and controls network, Internet and local system access and operations to and from an application or service. This type of firewall makes it possible to control and manage the operations of an application or service that's external to the IT environment.

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Techopedia explains Application Firewall

An application firewall is primarily used as an enhancement to the standard firewall program by providing firewall services up to the application layer. Some of the services performed by an application firewall include controlling the execution of applications, data handling, blocking malicious code from being executed and more. There are two types of application firewalls:

Network-Based Application Firewalls: Scan and monitor network-based traffic destined for the application layer or for any specific application.
Host-Based Application Firewalls: Monitor all the incoming and outgoing traffic initiated by an application or service on a local computer, system or host.