Information, Computer and Network Security Terms Glossary and Dictionary

Application layer firewall is a firewall operating at the application layer of the networking communication. Generally, it is a host using various forms of proxy servers to proxy traffic instead of routing it. As it works on the application layer, it may inspect the contents of the traffic, blocking what the firewall administrator views as inappropriate content, such as certain websites, viruses, attempts to exploit known logical flaws in client software, and so forth.

Related Terms

Application Layer Firewall