SPF, DKIM, and DMARC: A Practical Email Security Guide
Email spoofing is trivially easy without proper DNS records. Here's how SPF, DKIM, and DMARC actually work and how to deploy them.
Guides
How to Set Up a VPN on Any Device: A Practical Guide
A step-by-step walkthrough for configuring a VPN on Windows, macOS, Android, and iOS — without relying on vendor apps.
Hardening a Fresh Linux VPS Before You Do Anything Else
A default Linux VPS is an open target. These steps close the most exploited entry points before you deploy anything.
Password Managers Done Right: Advanced Security Practices
Most users set up a password manager and stop there. Here's how to harden your setup against real attack vectors.
How to Use a Hardware Security Key for SSH on Linux
Hardware security keys add phishing-resistant authentication to SSH. Here's how to configure one on Linux using FIDO2.
How to Find Unauthorized Devices on Your Home Network
Unknown devices on your home network can expose your data. Here's how to audit and secure it yourself.