SysAdmin
A sysadmin discovers a colleague passing SSH passwords in plain text via command-line arguments, triggering an audit that reveals widespread insecure practices including passwords exposed in process lists, CI/CD logs, and cron jobs.
Career
Based on discussions with experienced IT professionals in the community, this article outlines ten of the most common and costly career mistakes seen in the technology industry — from burning bridges to neglecting your professional network when you don't need it.
Essays
After 20 years and 28,000 km of cycling, the author discovered countersteering and proper walking technique — simple biomechanical insights that dramatically improved speed and reduced fatigue.
Essays
A deep-dive technical guide that demystifies Docker by exploring its foundational Linux mechanisms — chroot, namespaces, cgroups, and OverlayFS — with hands-on C++, Python, Go code examples and real experiments, showing that a container is just a regular process with preconfigured system attributes.
Essays
A medical software support engineer traces a recurring XML validation error to an invisible control character injected when doctors copy text from PDFs in Microsoft Edge.
Security
A mysterious creator seeded 256 Bitcoin wallets with private keys of increasing difficulty, challenging the world to crack them. A decade later, the puzzle has become a landmark experiment in cryptographic security — with over 916 BTC still unclaimed and solvers pushing the boundaries of brute-force and probabilistic algorithms.
Essays
A long-time internet user since 2006 examines seven converging forces -- the death of forums, ephemeral social media, disappearing personal websites, degraded search engines, AI content, government regulation, and rampant commercialization -- that are collectively destroying the internet as a reliable repository of human knowledge.
Management
A developer receives what looks like a classic social-engineering scam call from a bank's security department — verifies it is fraud — and then has all his accounts frozen by that very bank a week later. The story is a sharp critique of how banks communicate with customers in ways indistinguishable from phishing.
Essays
An exploration of the science of taste perception, from taste bud biology and receptor genetics to why some people can't stand broccoli — and how bitter taste receptors double as immune sentinels in the respiratory tract.
Essays
A team lead shares a cautionary tale of botching a task tracker rollout at a digital agency — from choosing an overly complex tool to micromanaging the team — and the hard lessons learned after nearly losing a key client and his job.
AI
An ecological metaphor for how AI assistants are collapsing the internet's information ecosystem — killing Wikipedia, Stack Overflow, and news sites while turning the web from a library into an entertainment park.
Hardware
A practical guide to building a 10BASE-T1L Ethernet media converter using the ADIN1100 transceiver, enabling 10 Mbps Ethernet over a single twisted pair at distances up to one kilometer.