Lockdown mode makes your Linux system more secure and even prevents root users from modifying the kernel.

A recent addition to the Linux kernel, WireGuard lets you build a VPN tunnel that relies on encryption to reduce potential security issues.

For maximum security, you'd better watch traffic in both directions. This hands-on workshop takes you through the steps of setting up firewalls for outgoing as well as incoming traffic.

If you have a large collection of bookmarked pages, it's worth protecting! With the right scripts, you can create an archive so you never lose access to all your favorite web pages.

Set up a professional video surveillance system armed with motionEyeOS and a Raspberry Pi.

Cloud services often place little value on data encryption. With Cryptomator, you can easily and transparently encrypt your data locally before uploading to the cloud.

If you have a download folder full of photos and music, Mediapurge can help you sort files and even remove duplicates, but beware of its quirks.