Cybersecurity · hands-on lab
RHCSA Lab 18: Manage Network Security with firewalld
Open services and ports permanently, block a network with a rich rule and publish a website on a custom port.
- 45 minutesTime in the lab
- AdvancedLevel
- 4 tasksChecked automatically
- CertificateVerifiable link when you finish
The situation
servera runs a website that workstation must reach on port 82, and an untrusted network must be blocked.
What you will do
- Guided exercise: Open a service
- Guided exercise: Block a network
- Lab: Website on port 82
- Runtime vs permanentquestion
How it works
The lab opens in your browser: a real terminal or desktop, nothing to install. Work through the tasks, press Check after each one and the portal verifies your work. Stuck? Ask for a hint. Finish every task and you get a certificate page with its own verification link for LinkedIn or your CV.