Introduction to Firewalls - 2 Hour Beginner Crash Course

Editorial course preview

What the public course preview actually shows

These 4 complementary views highlight concrete, legible examples from the course presentation.

Diagram of firewall zones showing Inside, DMZ, and Outside areas with laptop, server, and cloud icons separated by fire symbols. — Preview 1 of 4
Schematic diagram illustrating firewall zones labeled Inside, DMZ, and Outside, featuring icons for a laptop, server, and cloud separated by fire symbols.

Network diagram titled More Complex Firewall Topology showing a cloud, two firewalls, two routers, and six computers. — Preview 2 of 4
A network topology diagram illustrating a complex firewall setup with a cloud, two firewalls, two routers, and six computers.

Diagram titled Malware Infection showing a laptop, firewall with flame, and cloud with devil face, listing ports 80, 443, and 53. — Preview 3 of 4
A network diagram illustrating a malware infection scenario with a laptop, a firewall icon, and a cloud with a devil face, listing common ports.

Network diagram in a simulation interface showing two servers connected to a central router with labeled ports and green markers. — Preview 4 of 4
A network topology diagram in a simulation interface displays two server icons connected to a central router via dashed lines with green triangle markers.