What are the different types of firewalls and their uses?

What are the different types of firewalls and their uses?

There are several types of firewalls, including packet-filtering firewalls, stateful inspection firewalls, proxy firewalls, and next-generation firewalls. Each type serves different purposes in network security.

Can you explain packet-filtering firewalls?

Packet-filtering firewalls inspect packets and allow or block them based on predefined rules. They are efficient but offer limited security.

What about stateful inspection firewalls?

Stateful inspection firewalls track the state of active connections and make decisions based on the context of the traffic, providing better security than packet-filtering.

How do proxy firewalls work?

Proxy firewalls act as intermediaries between users and the internet, filtering requests and responses, which adds a layer of security.

What is a next-generation firewall?

Next-generation firewalls combine traditional firewall features with advanced security functions like intrusion prevention and application awareness.