Tag: #트러블슈팅
Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 3 posts
A Complete Guide to File Descriptors and Inodes: What Happens When df and du Disagree
Starts from the relationship between inodes and directory entries and works through hard links, deleted-but-still-open files, inode exhaustion, and file descriptor limits. Covers why df and du diverge and how to recover,
2026-08-15 · 16 min read #리눅스#파일시스템#inode#파일디스크립터#운영The complete Linux troubleshooting command guide: from the first 60 seconds to root cause ♪ Listenable
The diagnostic commands to run, in order, from the moment someone tells you a server is misbehaving. uptime, top, free, df, iostat, ss, journalctl — which number in each output to read, and what that number rules out ver
2026-08-15 · 19 min read #리눅스#트러블슈팅#운영#장애대응#명령어The Complete Guide to DNS: Following a Name All the Way to an Address ♪ Listenable
Splits name resolution into five separate segments — stub resolver through authoritative server — and works through record types, TTL and caching, delegation, reading dig output, propagation delay and stale caches, DNSSE
2026-08-15 · 25 min read #리눅스#dns#네트워크#운영#트러블슈팅