Systems · Networking · Operations

Practical notes for dependable infrastructure

A small collection of field notes about Linux administration, network services, monitoring, and predictable recovery.

Recent notes

Operations

Keeping small services observable

Useful health checks should confirm the user-visible path, not merely that a process still exists.

Configuration

Reducing configuration drift

Versioned configuration, staged updates, and simple rollback procedures make even single-server systems easier to operate.

Reliability

Designing for uncomplicated recovery

Backups are most valuable when restoration steps are short, documented, and tested before an incident.