#debugging
All articles tagged #debugging — practical guides from production experience.
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50 posts tagged #debugging · page 4 of 6
How to Find Large Files in Linux: Practical Guide
Find large files in Linux using find, du, and ncdu — with real command examples for disk cleanup, log hunting, and storage audits on production servers.
Docker Container Not Starting: Fix Guide
Fix Docker container not starting — diagnose exit codes, read container logs, resolve port conflicts, permission errors, and OOM kills in production.
DNS Not Resolving in Linux: Fix Guide
Fix DNS not resolving in Linux — diagnose with dig and nslookup, check resolv.conf and systemd-resolved, and fix DNS for containers, VMs, and production servers.
Disk Full Linux: How to Clean Up and Free Space Fast
Fix a full disk on Linux fast — find what's taking space with df and du, clean logs, Docker, package caches, and deleted-but-open files in production.
How to Compress Files in Linux: tar Examples
Compress files in Linux with tar — create .tar.gz and .tar.bz2 archives, choose the right compression level, and handle common tar use cases with real examples.
How to Check Open Ports in Linux: ss vs netstat
Check open ports in Linux using ss and netstat — with real command examples, output explanation, and when to use each tool in production troubleshooting.
Check Disk Usage in Linux: du vs df Explained
Check disk usage in Linux using df and du — understand the difference, read the output correctly, and find what's filling your disk with real command examples.
Cannot Connect to Server Linux: Step-by-Step Troubleshooting
Troubleshoot 'cannot connect to server' on Linux — diagnose connection refused, timeout, and network unreachable errors with a systematic step-by-step approach.
top Command Linux: Real-World Guide to CPU and Process Monitoring
Learn how to use the top command on Linux for production troubleshooting — reading CPU, load average, memory metrics, interpreting process states, and diagnosing high CPU and stuck processes in real incidents.