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

Technology Short Take 155

Welcome to Technology Short Take #155, just in time for the 2022 Memorial Day holiday weekend! (Here in the US, at least.) I mean, don’t you want to spend this weekend catching up on some technology-related articles instead of cooking on the grill and gathering with friends and family? I certainly hope not! Still, for those who need a little technology fix over the weekend, hopefully I’ve included something useful in the list of articles below. Enjoy!


  • Isovalent—the company behind the Cilium project—has been talking a lot about how the use of eBPF will transform things, including the architecture of a service mesh. Along those lines, one of their latest articles discusses how to achieve identity-based mutual authentication leveraging eBPF. If I’m understanding the article correctly (and feel free to correct me if I am mistaken) it looks as if Cilium Service Mesh will leverage/does leverage a combination of certificate-based mTLS for identity at the workload level and node-based transport encryption (via WireGuard) for data confidentiality. Even though I know that the underlying mechanisms are different, subjectively this feels a lot like using tunnels to connect workloads on different compute nodes (i.e., network virtualization). Is the relationship between network virtualization and service mesh closer than some folks might wish to admit?


  • Researchers have uncovered a potential security flaw in Apple Silicon CPUs; more details in this 9to5Mac article. I’m not sure how I feel about security researchers calling this flaw “not that bad.”
  • Colin Percival shares some benchmarks using FreeBSD on the Graviton 3.


Cloud Computing/Cloud Management

Operating Systems/Applications




  • The state of virtualization on Apple Silicon hardware has seen a few developments in recent days and weeks. One project that caught my attention was Tart, a CLI-driven tool that leverages the virtualization support present in macOS to run virtual macOS instances. This will become even more useful, in my opinion, when Linux support is added. (The possibility of a Vagrant provider just seals the deal, in my opinion.)
  • The world of virtualization—nay, more than just virtualization—will be forever changed with the announcement of Broadcom’s acquisition of VMware.

Career/Soft Skills

  • Mike McQuaid shares some details on how he gets things done.
  • Ashley Janssen discusses how time-blocking may help improve productivity. This is not a technique I’ve generally used, so I’d be curious to hear from readers who may have used or are currently using techniques like this.
  • Here’s some advice on “starting your diagramming career” (let’s be real, many IT folk need to create diagrams on a regular basis, so tips on creating diagrams might prove really useful).


  • I’ve seen a lot of work-from-home desk setups, but this one stood out as actually having some budget-conscious selections (which is often not the case). The use of 3M Command strips to affix stuff under the desk is also so blindingly obvious that I’m surprised I hadn’t thought of it already.

It’s time to wrap up. I hope you all have a wonderful weekend! Feel free to reach out to me if you have questions, comments, suggestions for improvement, or if you just want to say hi. The easiest way to contact me is via Twitter. Thanks for reading!

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