Posts in technical

CSRF, CORS, and SSRF: Defending Web Request Boundaries

Learn how CSRF, CORS, and SSRF differ, then apply cookie, origin, allowlist, and egress controls to protect browser and server request boundaries.

Debugging Backend Applications

Use a repeatable backend debugging workflow to reproduce failures, inspect evidence, test one hypothesis at a time, and verify fixes safely in production.

Deterministic Test Data and Isolated Environments

Make backend tests repeatable with controlled clocks, seeded fixtures, isolated databases, and failure-safe cleanup so teams can reproduce CI failures locally.

Linux Service Management and Runtime Environments

Learn to run backend services with systemd, manage environment-specific configuration, diagnose startup failures, and deploy safer Linux processes.

Network Latency, Timeouts, and Failure

Learn how latency, bandwidth, and jitter shape backend requests, then set useful timeouts, bounded retries, and failure handling without amplifying outages.