FIREWALLS

BY ABDUL-MUQEET AGIRI

FIREWALL

WHAT DO FIREWALLS DO?

A Firewall is a necessary part of any security architecture and takes the guesswork out of host level protections and entrusts them to your network security device. Firewalls, and especially Next Generation Firewalls, focus on blocking malware and application-layer attacks, along with an integrated intrusion prevention system (IPS), these Next Generation Firewalls can react quickly and seamlessly to detect and react to outside attacks across the whole network. They can set policies to better defend your network and carry out quick assessments to detect invasive or suspicious activity, like malware, and shut it down.

TYPES OF FIREWALLS.

1. Packet filtering.
2. Proxy service.
3. Stateful inspection.
4. Next Generation Firewall (NGFW).