Linux & the Command Line / Servers and scripts
Lesson 26 of 30
The firewall with ufw
ufw is Ubuntu's simple firewall. Deny everything incoming by default and only allow the ports you need.
Key points
- sudo ufw allow OpenSSH before enabling
- sudo ufw enable
- sudo ufw status verbose
sudo ufw default deny incoming
sudo ufw allow OpenSSH
sudo ufw enableQuiz · +10 XP
What should you allow before enabling ufw on a remote server?
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