6 articles tagged with ""networking""
After spending 3 hours debugging why my API container couldn't reach my database container (they were on different networks), I learned Docker networking the hard way. Here's everything you need to know to never waste an afternoon like that again.
Coming from 7 years of PHP and Node.js, I never thought I'd write a network security tool. Then Rust made it not just possible, but actually safe. Here's what happened when a web dev tried to build their own port scanner!
By default every pod in your cluster can talk to every other pod. That's basically leaving every door in your office unlocked. After running production Kubernetes clusters I learned that NetworkPolicy is the firewall you absolutely need but nobody tells you about!
After spending an entire afternoon convinced my app was broken, I discovered the real culprit: I was trying to connect containers using localhost like a complete amateur. Docker networking is deceptively simple once you stop fighting it.
Your AWS resources can't talk to each other, the internet, or you're getting mystery connection errors? After architecting production VPCs, here's how to fix AWS networking without crying into your coffee!
Ever wonder what's ACTUALLY happening on your WiFi network? I put my wireless adapter in monitor mode and saw EVERY packet flying through the air. Passwords, cookies, DNS queries... the WiFi spectrum tells all. Here's what I learned about wireless security!