Security

Disk Encryption

The Ubuntu 22.04 installer proposes to encrypt your disk for security.

Every time the system starts, you will have to enter the passkey for the encrypted drive. Without the pass key, Ubuntu won't boot.

The Uncomplicated Firewall (ufw) is a frontend for iptables and is particularly well-suited for host-based firewalls.

By default, ufw is disabled. You can check the status of your firewall with:

sudo ufw status

To enable the firewall:

sudo ufw enable

To disable the firewall:

sudo ufw disable

To manage the firewall via a graphical user interface:

sudo apt install gufw

ClamAV is an open source antivirus engine for detecting trojans, viruses, malware & other malicious threats.

To install ClamAV:

sudo apt install clamav

To manually update the threat database:

sudo systemctl stop clamav-freshclam
sudo freshclam
sudo systemctl start clamav-freshclam

To scan the home directory:

clamscan --infected --remove --recursive /home

To run ClamAV as a Daemon:

sudo apt install clamav-daemon

To install the front-end (GUI) client:

sudo apt install clamtk