3 posts tagged with "Programming"

Yesterday I saw a post, now removed, on Reddit that revealed that ESET uses DNS queries to do MAC address OUI lookups. This is quite smart because it allows a client to avoid maintaining a local copy of the OUI database and also means that the databases can be queried without having to have direct or proxied http access to an external API endpoint.

Introduction: Beyond the Basics​

FizzBuzz has long been a staple of programming interviews. The problem is deceptively simple: print numbers from 1 to n, but replace multiples of 3 with "Fizz", multiples of 5 with "Buzz", and multiples of both with "FizzBuzz". It's not meant to be a challenging algorithmic puzzle; most candidates with basic programming knowledge should solve it without difficulty.

So why does this trivial problem persist in the interview landscape? Because I believe FizzBuzz's true value isn't in filtering out candidates who can't code; it's in opening discussions about complexity, language characteristics, optimisation, and the subtle costs of different operations. The best interviewers don't just ask candidates to solve FizzBuzz; they use it as a starting point for a deeper technical conversation.

Introduction​

I've been asked to explain networks to people with no experience several times and it's hard to know where to start. There's so much history and so many computer science concepts that have led us to where we are today. I've always believed that to truly understand something, you need to be able to explain it to someone else. My goal here isn't just to explain the bits that make the internet work, but also to organise my own understanding and explore areas where I've taken things on faith instead of questioning why they exist. I'll start from nothing and rebuild the internet from scratch, solving the same problems that got us where we are today.