Glossary term
What is Firewall?
In Apex Flow Academy, "Firewall" means: A set of rules that allows or blocks network traffic. On Ubuntu the tool is ufw. It is taught in Linux for Absolute Beginners. Related terms include Port, Cron, Web server and Exit status. Every Apex Flow Academy course lists the official sources it checked.
- 1 course teaches it
- plain-word definition
The facts
What is Firewall?
A set of rules that allows or blocks network traffic. On Ubuntu the tool is ufw.
Where is Firewall taught?
Firewall is defined in Linux for Absolute Beginners.
Which lessons cover Firewall?
These lessons name it in their title or objectives:
- Linux for Absolute Beginners, lesson 6.3: Close the Doors You Do Not Use
Which terms are related to Firewall?
Next to Firewall in the course glossaries: Port, Cron, Web server, Exit status, Package and repository, Script, systemd and Runbook.
PortCronWeb serverExit statusPackage and repositoryScriptsystemdRunbook
The hard questions, answered straight
Bold questions people really ask. Each answer comes from the course data or a settled Academy fact.
Do I need experience before I learn Firewall?
It depends on the course. Each course that teaches it lists its own prerequisites, and all are listed at beginner level:
- Linux for Absolute Beginners: No Linux or programming experience is needed.