A proxy server firewall caches, filters, logs, and controls requests from devices to keep networks secure and prevent access to unauthorized parties and cyberattacks.Ī proxy firewall is considered the most secure form of firewall because it prevents networks from directly contacting other systems. It determines which traffic should be allowed and denied and analyzes incoming traffic to detect signs of a potential cyberattack or malware. They typically use an intrusion prevention system (IPS) or antivirus solution to protect against threats, which only covers a small fraction of the threat landscape that organizations now face.Ī proxy server addresses this gap by providing a gateway or intermediary between computers and servers on the internet to secure data that goes in and out of a network. Traditional firewalls are not designed to decrypt traffic or inspect application protocol traffic. A proxy firewall, also known as an application firewall or a gateway firewall, limits the applications that a network can support, which increases security levels but can affect functionality and speed. A proxy firewall is the most secure form of firewall, which filters messages at the application layer to protect network resources.

Application level gateway