DevOps

Users/groups/permissions ★ recommended

systemd basics ★ recommended

Process/network tools (ps, lsof, ss) ★ recommended

Logs: journalctl ★ recommended

Cron basics ★ recommended

Pipeline: build → test → deploy ★ recommended

Secrets in CI (best practices) ★ recommended

Artifacts and caching ★ recommended

Rollback strategy overview ★ recommended

Deploy migrations safely ★ recommended

Images/containers basics ★ recommended

Volumes and networks ★ recommended

docker-compose for stacks ★ recommended

Multi-stage builds overview ★ recommended

Registry basics ★ recommended

Metrics/logs/traces overview ★ recommended

Alerting basics ★ recommended

Dashboards basics ★ recommended

Uptime checks ★ recommended

Incident response basics ★ recommended

SSH hardening basics ★ recommended

TLS certificates basics ★ recommended

Least privilege principle ★ recommended

Backups and restore drills ★ recommended

Patch management basics ★ recommended