FIELD NOTES / CUSTOM CODE LABS
Ideas worth
building on.
Lessons from the work.
Practical thinking on software, AI,
and the business of building things.
THE JOURNAL / BY RICHARD GABELA
How to Audit a .NET Website for Injection Vulnerabilities
A practical guide to auditing .NET applications for SQL injection, XSS, command injection and related risks—with code searches, safer implementation patterns and evidence-based testing.
Read the storyThe Complete Ubuntu Server Hardening Checklist for 2026
A real, exhaustive Ubuntu server hardening guide based on what we actually run in production. Firewall, SSH, fail2ban, kernel sysctl, audit logging, malware scanning, file integrity, automatic updates — every layer, with actual commands.
Read the storyOpenClaw: How to Set Up Your Own Self-Hosted AI Assistant on a Cloud VPS
A comprehensive, real-world guide to deploying OpenClaw — the open-source AI gateway with 68K+ GitHub stars — on a cloud VPS. Covers architecture, secure SSH tunneling, Telegram integration, browser automation, Gmail webhooks, and the hard lessons we learned along the way.
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