No tools match your search.
Tag
Every post filed under “devops”, newest first.
7 posts.
Pushkar Kumar 8 min read
The chown command in Linux explained: user:group syntax, chown -R and symlinks, --reference, chgrp, chmod vs chown, and fixing Docker volume permission errors with numeric IDs.
Pushkar Kumar 10 min read
The chmod command in Linux explained: octal and symbolic modes, chmod +x, chmod -R and its traps, setuid, setgid and sticky bits, umask, and how to fix Permission denied.
Pushkar Kumar 10 min read
Terraform forces replacement when an attribute can't change in place: what -/+ means, how to find the cause with show -json and jq, and how to stop it.
Pushkar Kumar 8 min read
How to read CIDR notation: what the number after the slash means, a prefix-to-netmask table from /8 to /32, and real examples from VPCs, firewalls and Kubernetes.
Pushkar Kumar 7 min read
A free day-by-day path from Linux to Kubernetes with playable incident missions. The full plan, the design decisions, and the honest tradeoffs.
Pushkar Kumar 6 min read
A field-by-field guide to reading cron expressions — the five time fields, ranges, steps, lists and @macros — plus the gotchas that misfire schedules.
Pushkar Kumar 5 min read
One triaged suppression, re-encoded in .trivyignore, .grype.yaml, .snyk and osv-scanner.toml — what maps cleanly between them, and what is lossy.