Infrastructure / engineering principles
Technical practice
The principles behind access control, infrastructure changes, monitoring, and recovery. These describe an engineering approach, not a list of completed projects.
Architecture & Zero Trust
Limit access and keep administrative interfaces private.
Require explicit permission for access. Segment networks and grant only the permissions each task needs. Keep administration separate from public services, and document the architecture without exposing internal addresses.
Separate public, service, and management boundaries
Grant each identity access only to the resources it needs
Document dependencies without exposing internal addresses
Many hosted services are protected by Cloudflare ZTNA. Deployment addresses remain private.
Network securityAutomation & Infrastructure as Code
Make configuration changes reproducible and easy to review.
Keep configuration in version control rather than relying on undocumented manual changes. Review the intended state before applying it, and plan how to validate or undo a change. Automated jobs need limited permissions and logs that show what happened.
Version configuration and review changes before applying them
Design repeatable jobs with scoped credentials and useful logs
Plan validation and rollback alongside each change
Cronicle is used for distributed job scheduling. Infrastructure as Code is described here as an engineering approach, not a deployed toolchain.
Service catalogObservability & resilience
Use monitoring to find failures and recovery tests to check readiness.
A reachable service is not necessarily a healthy one. Combine availability checks with system monitoring and a record of dependencies. Set recovery objectives and test restores; a successful backup alone does not show that recovery will work.
Distinguish availability, system health, and infrastructure inventory
Focus alerts on problems that need action and trace affected dependencies
Define recovery objectives and verify restores in controlled conditions
Pulse, Uptime Kuma, and NetBox provide monitoring and inventory. The data protection page covers backup experience; live metrics and restore results remain private.
Data protectionWhite-hat & open-source practice
Work within permission and report findings responsibly.
Agree on permission and scope before starting security work. Report findings privately and allow time for fixes before coordinated disclosure. Open-source work should credit its contributors, and claims about contributions should link to verifiable work.
Require explicit authorization and boundaries before assessment
Protect sensitive findings and coordinate disclosure with maintainers
Cite contributions only when there is public work to reference
Vulnerability findings and client identities remain private. No unverified contributions are listed.
Open-source notes