Problems
Labs open a real Linux machine in your browser. Quizzes check the theory in a minute.
Labs open a real Linux machine in your browser. Quizzes check the theory in a minute.
1 of 277 problems
| Status | Title | Topic | Acceptance | Difficulty | XP |
|---|---|---|---|---|---|
| firewalld Runtime vs PermanentYou run firewall-cmd --permanent --zone=public --add-service=https. The command prints success, but clients still cannot reach port 443. Nginx is listening. WhaeasyLinux3 XP | Linux | New | easy | 3 |