AI engineering glossary · Computing foundations
What is firewall?
Firewall: A security system that monitors network traffic and allows or blocks it based on rules about addresses, ports and protocols. It protects machines from unwanted connections and can be a device, software or a cloud setting.
Firewall: an example
A cloud firewall rule that only allows port 443 blocks all other inbound connections to your server.
Related terms
More Computing foundations terms
- Firmware
- Floating-point number
- Garbage collection
- Global interpreter lock
- Graphical user interface
- Graphics processing unit
- Half-precision floating point
- Hard disk drive
Where you learn it
Firewall is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.