secure-os wrote
Jul 16, 2026 in security, uefi, boot - Secure Boot is a UEFI feature that only lets cryptographically signed software run at startup, blocking bootkits and rootkits that load before your OS. How it works, how it fits Linux, and its honest limits.
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Jul 14, 2026 in linux, distros, hardening - Immutable Linux distros keep the system read-only and update it as atomic image swaps you can roll back. What that means, the real security benefits, the honest trade-offs, and which distros to look at in 2026.
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Jul 9, 2026 in linux, wayland, x11 - X11 lets any running app read your keystrokes and capture other windows. Wayland was designed to close that gap. What each does, the honest caveats (XWayland, portals), and why a security desktop should prefer Wayland.
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Jun 26, 2026 in linux, antivirus, malware - Does Linux need antivirus? The honest answer, when it actually matters (servers, mail gateways, mixed Windows networks), the real tools - ClamAV, rkhunter, chkrootkit - and the layered defenses that protect a desktop better than a virus scanner.
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Jun 25, 2026 in linux, sandboxing, firejail - A practical guide to Firejail, the SUID sandbox that confines Linux applications using namespaces and seccomp. Covers installation, profiles, common commands, real limitations, and how it compares to Flatpak and Bubblewrap.
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Jun 24, 2026 in linux, hardening, apparmor - AppArmor vs SELinux compared by design, real-world maintenance and threat model. A practical guide to choosing the right Mandatory Access Control system for your Linux machine.
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Jun 22, 2026 in linux, sandboxing, security - Linux sandboxing confines an application so that, if it is compromised, the damage stays contained. What sandboxing is, how Flatpak, Firejail, bubblewrap and containers do it, and how it fits a real defense-in-depth setup.
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Jun 20, 2026 in linux, arch, aur - In June 2026 hundreds of Arch User Repository packages were hijacked to deploy an infostealer and an eBPF rootkit. What actually happened, why the AUR is structurally riskier than Arch's official repos, and a practical routine to vet AUR packages before you install them.
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Jun 17, 2026 in linux, windows, security - Is Linux more secure than Windows in 2026? Linux has real structural advantages - permissions, smaller desktop attack surface, open-source auditability - but Windows has closed much of the gap. What actually makes the difference, honestly.
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Jun 12, 2026 in linux, hardening, sysctl - A practical Linux hardening guide built around threat models, not checklists. Covers sysctl, AppArmor, SELinux, kernel parameters, and verified boot - with clear explanations of what each measure actually protects against.
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Jun 12, 2026 in luks, encryption, linux - A complete guide to LUKS2 full-disk encryption on Linux - cryptsetup commands, header backup, TPM auto-unlock, performance benchmarks, and what to do when your header is lost.
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Jun 12, 2026 in linux, distros, hardening - Choosing the most secure Linux distro depends on your threat model. This guide ranks 7 secure Linux distros by what they actually protect against.
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Jun 12, 2026 in qubes, compartmentalization, linux - A technical deep-dive into Qubes OS - the compartmentalization-based desktop OS recommended by Snowden and used by security professionals worldwide.
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