Linux admins,
The kernel is in a unique position on your Linux system. The kernel is a central component of the operating system, acting as a bridge between the hardware and user applications. It manages system resources and allows software and hardware to communicate with each other. It also has unique security challenges for patching and keeping the threat actors at bay. Let's discuss some of these issues, including patching, Secure Boot, and Kernel Lockdown, so you can keep your kernel secure too.
I'll also share a guide to help you choose the Linux distro that fits your priorities and gives you confidence in your digital security.
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Yours in Open Source,
Dave Wreski
LinuxSecurity Founder
A Sysadmin's Guide to Securing the Linux Kernel
With the support of the open-source community and a strict privilege system embedded in its architecture, Linux has security built into its design. That being said, gone are the days when Linux system administrators could get away with subpar security practices. Cybercriminals have come to view Linux as a viable attack target due to its growing popularity, the valuable devices it powers worldwide, and an array of dangerous new Linux malware variants that have emerged in recent years. It has become apparent that most attacks on Linux systems can be attributed to misconfigurations and poor administration - and failure to properly secure the Linux kernel is often at least partially to blame. Kernel security is a key determinant of overall system security, as the Linux kernel is the foundation of the Linux OS and the core interface between a computer’s hardware and its processes. Luckily, the Linux kernel possesses an assortment of effective built-in security defenses - firewalls that use packet filters built into the kernel, Secure Boot, Linux Kernel Lockdown, and SELinux or AppArmor - that administrators should take full advantage of. Let's examine the importance of robust kernel security and explore various measures you can take to secure the Linux kernel and protect your systems from malware and other exploits. |
Explore the Top Secure Linux Distros for Privacy & Security in 2025
Privacy and security have never been more important—or more under threat. With headlines constantly reporting data breaches, hacks, and the unchecked collection of sensitive personal information, it’s easy to feel like your digital life is always at risk. However, there’s a silver lining for Linux users: experts widely agree that Linux is a highly secure OS—arguably the most secure OS available. That said, not all Linux distributions are created equal. While every distro benefits from the inherent strengths of Linux, some go the extra mile in safeguarding your privacy and security. From those designed for enterprise-grade reliability to others explicitly built for anonymity, there’s a distro tailored to meet your needs. We’ve explored some of the best specialized secure Linux distros, including insights from their developers, to help you navigate the options. Whether you’re focused on advanced security frameworks, protecting personal data, or simply locking down your system, this guide will help you choose the Linux distro that fits your priorities and gives you confidence in your digital security. |
