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DNS Flag Day 2020 – ISC

The DNS protocol needs refreshing but a global, distributed database is not easy to change. The folks leading the DNS architecture are making small but substantial changes once per year. There is a non-zero but small risk that something will break for some people.  This year they are addressing DNS Fragmentation on UDP and required […]

Musing: Hidden Complexity of Dual SIM Phones

It hadn’t occurred to me that having Dual SIMs in a smartphone has hidden aspects of complexity. In this slide, having multiple SIMs means thinking about activity – are both SIMs active at all times ? If so, are you willing to incur the battery and product penalty to have dual radios operating simultaneously.  Or […]

My Thoughts on LinkedIn in 2020

LinkedIn originated with a focus on connecting professionals and contacts were supposed to be people that you know or worked with. The early team worked hard to build a monopoly/network effect around business connections.  Much of LinkedIn’s interface usability stems from that design intention. Now there is tension between what was LinkedIn was 10 years […]

Virtual Open Office Hours – Mid September 2020

Virtual Open Office is a chance for people to gather and discuss any topics you find interesting. Open to Anyone. No cost or commitment. Just a chance to sit around and talk, like you were in the corridor at a conference.  I’ll be there with a coffee/tea or a beer/cocktail (as appropriate) Tuesday, September 15, […]

Virtual Open Office Hours – Late August 2020

Virtual Open Office is a chance for people to gather and discuss any topics you find interesting. Open to Anyone. No cost or commitment. I’ll be there with a coffee/tea or a beer/cocktail (as appropriate) Tuesday, Aug 25, 1000BST/0900UTC intended for European, Australia/Oceania and East Asian Friday, Aug 28 2000BST/1900UTC which might suit people in […]

Background on Stuxnet

The story of Stuxnet, the first cyber weapon in history. Focus is on the manipulation of machinery at Natanz, with detailed explanations of machine configuration and operation. A few takeaways for myself after watching: The Stuxnet software impacted the Iranian nuclear program by damaging the project budget. Instead of blowing up the centrifuges, they increased […]

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