How does a firewall work?

Can you explain how a firewall works?

Sure! A firewall acts as a barrier between your internal network and external networks, controlling incoming and outgoing traffic.

What types of firewalls are there?

There are several types, including packet-filtering firewalls, stateful inspection firewalls, and application-layer firewalls.

How does a packet-filtering firewall differ from a stateful inspection firewall?

A packet-filtering firewall checks packets against a set of rules, while a stateful inspection firewall tracks the state of active connections.

Can firewalls protect against malware?

Yes, firewalls can help block malicious traffic, but they should be used alongside other security measures for better protection.