Network Administration ⁽¹⁸⁾

I'm currently locked in a battle with a senior member of our organisation who is annoyed that someone they contact regularly at another organisation gets quarantined by our email security. Do you want to know why? They are not sending from an IP address specified…

Fibre optic cables are the backbone of the world as we know it. Because the data is transmitted by light and not electricity, they can travel further and faster than copper cables. In 2025, we reached approximately 1.6 million kilometres of undersea fibre optic cable,…

Ever wondered how your router knows your iPhone from your smart fridge, or how coffee shop Wi-Fi remembers you? It all comes down to the MAC (Media Access Control) Address. While an IP address is like your mailing address (where you are currently located), a…