Month: August 2024

Setting Up LUKS to Secure Your System

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As cyber threats continue to evolve, ensuring the security of sensitive data is more crucial than ever. Linux Unified Key Setup (LUKS) is a robust encryption standard designed to protect data at rest. This article will guide you through the process of setting up LUKS on Linux, explain how it works, how to change the passphrase if needed, and how to configure your system to automatically mount the LUKS-encrypted partition at boot.

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Securing Your System with AppArmor

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AppArmor (Application Armor) is a Linux security module that provides mandatory access control (MAC) for programs, allowing administrators to confine programs to a limited set of resources. It is an excellent way to enhance security by enforcing restrictive policies on applications, preventing them from performing unauthorized actions even if compromised.

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Securing the GRUB Boot Loader on Debian Linux

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In system security, boot loader protection is a crucial yet often overlooked aspect. GRUB (GRand Unified Bootloader) serves as the initial stage in the boot process for many Linux distributions, including Debian. Properly securing GRUB is essential to prevent unauthorized users from gaining access to your system or manipulating boot parameters to bypass security mechanisms. This article outlines the steps to enhance the security of the GRUB boot loader on a Debian Linux system.

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Using basic SELinux on Enterprise Linux

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Security-Enhanced Linux (SELinux) is a robust security mechanism that provides mandatory access control (MAC) for Linux. When deploying web services on Enterprise Linux, SELinux helps ensure the system’s security by enforcing strict access policies. This article guides you through hosting a website in the /opt/cafe/www directory, highlighting how to debug, analyze, and solve SELinux-related issues when it is in enforcing mode.

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Encrypting KVM Volumes as LVM Logical Volumes with LUKS

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Encrypting storage volumes ensures that sensitive information is protected, even if physical devices are lost or stolen. This post will guide you through encrypting KVM volumes as LVM logical volumes on Debian 12. We’ll cover setting up LVM, encrypting the volumes with LUKS (Linux Unified Key Setup), and integrating them into your KVM setup.

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