~/tutorials
All my tutorials come from questions I once had — now the answers are yours, free and straight to the solution.
Quick answermod_rewrite is a tiny language and most confusion comes from reading rules in isolation.mod_rewrite is a tiny language and most confusion comes from reading rules in isolation. Once you understand condition-then-rule and the flag letters, it clicks.What...
Expo’s managed workflow is the right default for most React Native products. It gives you a fast start, over-the-air updates, and a build service without asking you to maintain two native projects. The mistake is treating “managed” as a permanent architectural...
Quick answerSit behind Cloudflare and every request in your Apache logs shows Cloudflare's IP instead of the visitor's.Sit behind Cloudflare and every request in your Apache logs shows Cloudflare's IP instead of the visitor's. Restoring the real IP matters...
CVE-2026-98432 is a 9.8 Linux kernel TCP flaw. Who is exposed, which kernels are patched, and why installing the update without rebooting leaves you vulnerable.
NativePHP packages Laravel apps for Windows, macOS, Linux, iOS and Android. What it really does, what it does not, and when it is worth it.
Quick answeriptables looks intimidating but the core model is simple: chains of rules, evaluated top to bottom, first match wins.iptables looks intimidating but the core model is simple: chains of rules, evaluated top to bottom, first match wins. A small, readable...
Quick answerExim4 is Debian's default MTA and it is remarkably capable once you understand its split configuration.Exim4 is Debian's default MTA and it is remarkably capable once you understand its split configuration. For most sites you only need it to relay...
A researcher found privilege-escalation issues in Tailscale SSH when port forwarding is enabled. What the Tailworm report claims, what Tailscale says, and how to reduce exposure.
vfio-native cuts VM detection from 10/85 to 1/85, but it is Linux-only and not a Mac gaming fix. What detection sees, what works on macOS, and where anti-cheat stops you.
Quick answerSending mail is easy; getting it into inboxes is the hard part.Sending mail is easy; getting it into inboxes is the hard part. A Postfix server that no one blocks needs three things: a clean forward/reverse DNS match, TLS, and SPF/DKIM records.What you...