Linux
April 2, 2024
Linux systems administration for production DevSecOps storage, users, services, hardening, and day-two operations on RHEL-aligned and cloud VM workloads.
Linux systems for secure operations
Research notes on Linux administration in production and lab environments: file systems, disk usage, cron, LDAP integration, SELinux basics, and command-line patterns used when hardening servers before container and Kubernetes workloads.
Topics covered
| Area | Focus |
|---|---|
| Storage & FS | Partitioning, mounts, LVM, capacity planning |
| Identity & access | Users, groups, sudo, LDAP hooks |
| Hardening | SELinux, service minimization, patch cadence |
| Operations | Cron, logs, troubleshooting playbooks |
Part of the Operations & Reliability pillar complements networking, observability, and SRE practices documented in adjacent tracks.