Welcome to our comprehensive guide on installing and securing Debian Linux 12. In this walkthrough, we will discuss how to install Debian Linux, an open-source operating system, and then secure it to protect your system from potential threats.
Step 1: Download Debian Linux 12
You can download the Debian Linux ISO file directly from the Debian Official Website. They offer multiple versions; we recommend downloading the latest stable release for the best performance and security.
Step 2: Create a Bootable Debian USB Drive
To create a bootable USB, you will need a USB drive and a software like Rufus. Rufus is a free, open-source tool that helps format and create bootable USB drives.
Step 3: Install Debian Linux 12
Boot your computer from the Debian USB drive. Once the Debian Installer menu appears, choose ‘Install’ and follow the on-screen instructions.
Step 4: Secure Your Debian Linux 12 Installation
After successfully installing Debian Linux, it’s crucial to secure it.
Install a Firewall
Uncomplicated Firewall (UFW) is a frontend for IPTables, aiming to ease IPTables firewall configuration. You can install UFW using the following command:
sudo apt-get install ufw
Configure SSH for Secure Access
Change the default SSH port, disable root logins, and enable key authentication to make your SSH more secure.
Regular Updates
Keep your Debian Linux system up-to-date by regularly updating the system packages:
sudo apt-get update && sudo apt-get upgrade
Step 5: Install Antivirus Software
Install an antivirus like ClamAV, an open-source antivirus engine for detecting trojans, viruses, malware, and other malicious threats.
sudo apt-get install clamav clamav-daemon
Remember, securing a system is a continuous process, and you should regularly monitor and patch any discovered vulnerabilities.
Related Articles
