In the previous blog post in this series, we figured out that you might not need link-layer addresses on point-to-point links. We also started exploring whether you need network-layer addresses on individual interfaces but didn’t get very far. We’ll fix that today and discover the secrets behind IP address-per-interface design. In the early days of computer networking, there were three common addressing paradigms:

The whiteboard, despite being designed specifically for schools at first, became a huge hit with the business world before schools really embraced it.

Compare tmux, GNU Screen, Konsole, and Terminator to see which is the best fit for you.

This might be the workplace question of the decade. Does the boss buy your time or your productivity? In the pre-industrial age, when we worked from home (“cottage industries”) workers …

[This is from my Substack newsletter, The Magnet – Mark] Satoru Iwata (1959-2015) was Nintendo’s beloved fourth president and CEO. A new book, Ask Iwata, collects interviews with him to form …

The kernel's BPF virtual machine allows programs loaded from user space to be safely run in the kernel's context. That functionality would be of limited use, however, without the ability for those programs to interact with the rest of the kernel. The interface between BPF and the kernel has been kept narrow for a number of good reasons, including safety and keeping the kernel in control of the system. The 5.13 kernel, though, contains a feature that could, over time, widen that interface considerably: the ability to directly call kernel functions from BPF programs.

Posted on Wednesday 12 May 2021. 395 words, 3 links. By Matt Webb.

People in cities around the world who use subways to move around will often see or hear the warning to “mind the gap” – or something similar – a caution

Find out all about low code vs no-code platforms and which is the best one for web and app development

New levels of diligence are required to secure the new breed of cloud-native applications and microservices.

Magic first: Acar and the folks at Penguin are offering a limited-edition deck of special cards to go with The Practice. It launched today. Persistence: Today is the 200th episode of my podcast Aki…

Appian updated its low-code platform with a set of visual tools that enables developers to aggregate app data with the help of a DBA.

Why should you treat API security differently from web application security in general? They're two completely different things.

Complexity matters because it’s the maintenance of code that consume the most time

Good code is like underwear. Simple, short and and a joy to look at #HoskCodeWisdom

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The mass migration to the public cloud has sparked increased interest in telemetry to monitor and manage hundreds and thousands of APIs.

Enterprise companies routinely fall into a cycle of relying on engineers to build a user-facing product only to become frustrated when the end users are unhappy with the product and refuse to use it. By prioritizing DevOps and infrastructure at the very beginning of the product cycle, your team can ensure that as more and…

You can’t afford to have a new feature, update, or bug fix bring you two steps forward and three steps back. The new functionality must work flawlessly — and it can’t disrupt the pre-existing functionality that users have come to rely on. This is why you need continuous performance testing. Unfortunately, it’s all too easy…

Improving observability for developers is the focus of this episode of The New Stack podcast. The featured guests were Zain Asgar, who is general manager of the open source Pixie Kubernetes monitoring tool; Roopak Venkatakrishnan, engineering manager for Bolt, an e-commerce retailer tool; Ihor Dvoretskyi, developer advocate for the and Christine Wang, senior solutions engineer,…

It’s easier to add code than remove and simplify it

While the extraordinarily large shipping container, Ever Given, ran aground in the Suez Canal, halting a major trade route that has caused losses in the billions, our solution engineers at Aspen Mesh have been stuck diagnosing a tricky Istio and Envoy performance bottleneck on their own island for the past few weeks. Though the scale and…

Software containers are all the rage these days. They bring a lot of benefits and may push forward the revision of entire software stacks developed in-house, for good reasons. Containers are at the base of the cloud native phenomenon, and they bring many benefits to IT systems. However, the emphasis put on container technologies and…

Now that every company is an e-commerce company, organizations are quickly moving through their software development lifecycles (SDLC) like never before — because their business depends on it. But the most important piece in the SDLC is not just about getting more software and applications out the door faster; it’s about ensuring the software works…