Author

H.W. Crestwood

Senior Editor

Blog editor and full-stack specialist with over 15 years of experience in software development and systems administration. Driven by a strong interest in homelab and self-hosted infrastructure, he approaches technology from a practical, experiment-driven perspective.

Abstract storage dashboard and directory hierarchy showing one constrained volume traced to several separate data areas.

Nov 11, 2026H.W. Crestwood

Linux Disk Space: Find Usage Safely with df and du

Unbranded desktop behind a translucent network boundary with selected service paths allowed and unsolicited probes deflected.

Nov 10, 2026H.W. Crestwood

macOS Built-In Firewall: Safer Incoming Connection Rules

Abstract computer reliability timeline with update markers, warnings, and one selected failure shown in detail.

Nov 9, 2026H.W. Crestwood

Windows Reliability Monitor: Read Your PC’s Health History

Abstract system activity dashboard showing CPU, memory, energy, disk, and network trends on a desktop computer.

Nov 8, 2026H.W. Crestwood

Activity Monitor on Mac: A Practical Beginner’s Guide

Abstract system log events passing through filters into a diagnostic timeline with one error highlighted.

Nov 7, 2026H.W. Crestwood

How to Read Linux System Logs with journalctl

Generic software package isolated inside a transparent virtual testing chamber on a desktop computer.

Nov 6, 2026H.W. Crestwood

Windows Sandbox: A Safer Disposable Environment for App Testing

Unbranded desktop computer surrounded by three translucent security layers that stop a red digital threat.

Nov 5, 2026H.W. Crestwood

macOS Security Layers Explained: SIP, Gatekeeper, and XProtect

Illustrative queue of data packets approaching a home router, with a smaller packet delayed behind larger traffic.

Nov 4, 2026H.W. Crestwood

Bufferbloat 101: Why Your Ping Spikes Even on Gigabit Fiber

A refined homelab scene showing VM nodes resolving local names through a Pi-hole layer and recursive upstream queries through Unbound.

Nov 3, 2026H.W. Crestwood

Setting Up Local DNS Resolution for VMs with Pi-hole and Unbound

An open beige 1990s desktop PC with a sound card installed beside speakers and a glowing CRT monitor.

Nov 2, 2026H.W. Crestwood

Sound Blaster 16: The Expansion Card That Gave PCs a Voice