nstat vs netstat vs ss: Which One Tells the Truth in 2026?
For twenty years, the reflex for “what’s happening on my network?” was netstat -s. In 2026, that reflex is quietly…
PostgreSQL 18.6 Fixed 28 Security Issues—When Will Amazon RDS Support It?
On August 13, 2026, the PostgreSQL Global Development Group shipped an update to every supported branch—18.6, 17.11, 16.15, 15.19, and 14.24—alongside…
Claude PowerPoint Skills: Building Slide Decks with Your Coding Agent
“Can Claude actually make a PowerPoint?” is one of the most common questions asked about coding agents right now. The…
How to Fix “timed out waiting for input: auto-logout” in Linux
You’re in the middle of something, you glance away for a few minutes, and when you return your shell has…
How to Fix SSH “Permission denied (publickey,password)” in Linux
Introduction Few error messages are as frustrating — or as vague — as this one: You try to SSH into…
GitHub Actions Outage: Some Push and Pull Request Workflows Must Be Manually Replayed
What Happened On August 6, 2026 at 15:22 UTC, GitHub began investigating degraded performance in Actions. What followed was one…
A Missing PTR Record Sent Our Emails to Spam: A Week-Long Debugging Story
When Everything Looks Fine but Nothing Works It started with a Slack message from our sales lead: “Hey, a client…
What Is SELinux? A Complete Beginner’s Guide to Security-Enhanced Linux
What Is SELinux? SELinux (Security-Enhanced Linux) is a mandatory access control (MAC) security mechanism built into the Linux kernel. Originally…
How to Create Videos with Codex—Without Being a Video Editor
Creating a polished video usually requires several tools: a script editor, design software, animation software, a timeline editor, and an…
Cloud-init 26.2: Better Networking, Stronger Security, Broader Cloud Support
Cloud-init 26.2 was released on July 29, 2026, following roughly five months of development. The release includes contributions from 36…