Linux Hardening: The Complete Security Guide
A complete Linux hardening guide: choosing a secure distro, LUKS disk encryption, firewall, kernel hardening, Flatpak sandboxing, and Secure Boot.
Security
Complete Guide to macOS Security and Privacy
A detailed guide to locking down your Mac: from initial setup to firewall, DNS, browser, Tor, VPN, encryption, and system monitoring.
Email Security: Encryption, SPF, DKIM and DMARC
Discover how email security really works: from STARTTLS to PGP, from SPF and DKIM to DMARC. A complete guide with practical tips to protect your email.
Threat Model: How to Define Your Threats
Learn how to build an effective threat model to protect your privacy and digital security. Avoid the common mistakes beginners make.
Self-Hosted VPN: WireGuard + Pi-hole + Unbound
Build your own private VPN with WireGuard, Pi-hole and Unbound DNS. Block ads and trackers without trusting commercial providers. Full guide.
Tor Node: Complete Setup to Support the Network
Learn how to set up a Tor node (middle relay or exit) on a VPS or locally. Automated script included. Complete guide.