Scott's Weblog The weblog of an IT pro focusing on cloud computing, Kubernetes, Linux, containers, and networking

Technology Short Take 115

Welcome to Technology Short Take #115! I’m back from my much-needed vacation in Bali, and getting settled back into work and my daily routine (which, for the last few weeks, was mostly swimming in the pool and sitting on the beach). Here’s a fresh new collection of links and articles from the around the web to propel myself back into blogging. I hope you find something useful here!



Nothing this time around, sorry!


  • Software company Agile Bits recently announced support for U2F-compatible hardware security keys in their 1Password product. Currently, the support is limited to the web interface of 1Password and only in specific browsers, but it would not be unreasonable to see the support expand in the future.
  • Vivek Gite shows to how use oathtool to generate time-based one-time passwords for use with 2FA systems (in the article Google is the example service being secured, but instructions are provided near the end for working with other online services as well).
  • Although this article is titled “How to use OpenSSL,” it’s really more of an educational article on hashes, digital signatures, and digital certificates, with some openssl commands thrown in along the way. It’s a misleading title, but the content differs from the title in a good way.

Cloud Computing/Cloud Management

Operating Systems/Applications


  • Cormac Hogan has recently published three good articles on storage in Kubernetes (the articles are all part of a larger “Kubernetes Storage on vSphere” series). The first article covers StatefulSets with a focus on PersistentVolumes (PVs) and PersistentVolumeClaims (PVCs). The second article covers failure scenarios with a focus on node failure/removal, and the third article discusses ReadWriteMany PVs using NFS. Good stuff!
  • Eli Finkelshteyn explains why data moats are not just about the data (they also about creating a data-driven culture).


Career/Soft Skills

  • This doesn’t really fit anywhere else, but it’s such a good article on network effect that I felt like it would be useful. Ali Yahya’s article on robot hiveminds and network effects does a great job, I think, of explaining network effect and defensibility through a real-world example.
  • Although this article is focused on teaching a kid to build a game in Python using Pygame Zero, I think some of the takeaways listed near the end could be applicable to anyone learning a complex new skill.

I have plenty more material I could include, but I’ll stop here so as to not overwhelm the readers (this is a lot of material to digest!). If you have any questions about any of these links, or comments about this or other articles on my site, you’re always welcome to interact with me via Twitter. Have a great weekend, all!

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