Archive
Everything published in this engineering notebook.
Error pages that help instead of confusing people
Correct redirects and honest HTTP semantics for static sites.
A repeatable Linux network baseline
Small sysctl changes that are easy to understand and verify.
Backups that survive a container upgrade
A practical way to capture and restore stateful Docker services.
Designing an allowlist without locking yourself out
Safe exposure rules for private service-to-service links.
Troubleshooting MTU in encapsulated networks
A method for finding mysterious stalls and fragmented traffic.
Adding IPv6 without creating a second outage
Dual-stack checks for DNS, listeners, NAT, and return routes.