InternshipKey terms and common mistakes
The words you will hear in Linux Administration work and the mistakes that most often cost interns approvals.
Key terms
| Term | Meaning |
|---|---|
| Kernel | Core of the operating system |
root | Superuser account |
chmod | Changes permissions |
apt | Debian/Ubuntu package manager |
| Process | Running program |
df | Shows free disk space |
ip a | Shows network interfaces |
ufw | Uncomplicated Firewall |
Common mistakes to avoid
- Working as root for everyday tasks.
- Using chmod 777 to fix permission errors.
- Never testing that backups can be restored.
- Editing /etc/fstab without a recovery plan.
- Leaving password SSH login open to the internet.
Want to go deeper? The free Linux Administration learning path has short modules, games and a certificate for each module.