Hamish McArthur — Practical IT & Cybersecurity Insights

Practical insights on Next-generation IT, cybersecurity,
Sysadmin stuff, and part-time human being.

Hi 👋 I’m Hamish, an IT and cybersecurity professional with more than 20 years of experience across several domains.

My career has taken a slightly unusual route through enterprise technology, cybersecurity, sound engineering and even programming. I’ve been fortunate enough to work with a wide range of operating systems, IT platforms and even professional audio equipment. I’m happiest when I’m experimenting with new technology or building something useful.

I share practical insights from my experience, with a focus on helping businesses and other IT professionals make informed, sensible technology decisions.

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The accidental software developer: What I wish I knew when I started

We see a software developer sitting at a brown desk with multiple-screens, we are looking at him from behind as he works. His Macbook and paper notebook is also on his desk.

CODING

A personal reflection on how a small internal software project grew into a business-critical system over 16 years, and the lessons I learned about development, maintenance, ownership, and the true cost of building your own software.

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Dynamic DNS: Reliability and security concerns

A close up picture of a notebook computer where we see the hands of the user on the keyboard and a slightly out of focus screen. One the screen we can see a "website not available error".

Networking

Dynamic DNS remains a popular, while somewhat dated approach for self-hosting services on an Internet connection that doesn't have a static IP address. If this is something you are considering or are already using, you should be aware of the reliability and security complications.

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