#debugging
All articles tagged #debugging — practical guides from production experience.
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50 posts tagged #debugging · page 6 of 6
How to Check Running Processes in Linux: Complete Guide
How to check running processes in Linux using ps, top, and htop — with filtering techniques, real troubleshooting workflows, and common mistakes engineers make when investigating process issues.
Check Open Ports in Linux: ss vs netstat Explained
How to check open ports in Linux using ss and netstat — with real troubleshooting scenarios, filtering techniques, and a clear comparison of when to use each tool.
Linux TIME_WAIT Explained: Why It Causes Connection Failures and How to Fix It
Linux TIME_WAIT exhausts ephemeral ports and causes ECONNREFUSED under load — even when your app is healthy. Learn what TIME_WAIT is, how to detect port exhaustion with ss and netstat, and the exact sysctl fixes that resolve it.
Reading Logs Like a Detective: A Field Guide to Incident Triage
The exact commands and mental models I use to go from 'something is wrong' to 'I know exactly what happened' in under 15 minutes.
strace, lsof, and ss: The Trio That Solves Every Mystery
When logs give you nothing and the debugger isn't an option, these three tools let you see exactly what a running process is doing at the system call level.