4 articles tagged with "networking"
Your compute bill is flat, your storage bill is flat, and yet the total keeps climbing. Meet data egress — the cost line that hides in plain sight until it doesn't.
By default, every pod in your cluster can talk to every other pod. That's convenient right up until an audit finds it, and then someone applies a default-deny NetworkPolicy on a Friday and DNS stops working for everyone. Here's how to lock down pod-to-pod traffic without becoming the incident.
Turning on a default-deny NetworkPolicy is the easiest way to feel like a security hero for exactly four minutes, right before DNS stops resolving and your on-call phone starts screaming. Here's how to roll out network policies without setting your own pager on fire.
You spin up a dev server on localhost:3000 and think you're safe from the internet. You're not. DNS rebinding lets attackers reach your 'private' services through a browser tab. Here's how it works and how to stop it.