Building an Anycast CDN for fun and profit

In simple terms, anycast is just a route with multiple next-hops. More generally it's the routing method that allows a single IP address to be routed to multiple endpoints. While seemingly basic enough, it allows for some really interesting network use cases. It's also hard to experiment with in a…

The state of RPKI at Internet Exchange Points

RPKI (Resource Public Key Infrastructure) is the primary response to the issue of BGP hijacks on the internet. It works by cryptographically verifying that a network is authorized to announce a given route. Internet Exchange Points (IXPs) are typically assigned globally unique prefixes in order to keep members in the…

Introduction to "The Internet"

For some of us the internet is the thing we use to post photos, chat with friends, and more recently, going to work or school on Zoom. For others, it might be the Ethernet port at the back of your modem. But how does it get there? Where does it…

Adventures in serverside JavaScript: Node.js vs Deno

I've enjoyed the backend side of web development far more than frontend for a while now. The monotony of CSS combined with the weird type system of JS makes creating a modern frontend quite a chore. Though recently after a conversation with a few friends, I decided to give it…