System Architecture

There are three approaches to sharing tokens between services in the service mesh. They can be combined to achieve for security that suits business needs.

A few years ago while interviewing Nelson Elhage for Staff Engineer, he mentioned “estimation” as a particularly valuable skill. I hadn’t thought much about the idea of estimation as a skill, but his comment made me remember one of the best architecture interviews I’ve ever given, where the candidate was able to significantly narrow down the possible solutions by asking for a few details (as best I can remember: queries per second, expected number of rows, and necessary columns).

Cosmonic's Liam Randall and Adobe's Colin Murphy discuss why Wasm’s future looks bright.

At the 2022 sambaXP conference, Jeremy Allison gave a talk titled "The UNIX Filesystem API is profoundly broken: What to do about it?". LWN regulars may recall hints of these talks in a recent comment thread. He started his talk with the problems that symbolic links ("symlinks") cause for application developers, then discussed how the solutions to the problems posed by symlinks led to substantial increases in the complexity of the APIs involved in working with pathnames.

Posts and writings by Lennart Poettering

A launchd primer covering configuration, administration and troubleshooting. Complete with examples.

Securely connect to and develop on any remote machine with the VS Code Server private preview.

File hosting service Dropbox released the details on its sixth generation of servers, a fleet optimized for a higher capacity, and lower latency.

Improving incident response is critical to maintain fully-functional systems. Here are five mean-time reliability metrics to help you do that.

The foundation of putting zero trust security principles into practice is #authentication and #authorization. The two practices work differently in zero trust than in other systems. #security #zerotrust #ITculture #DevOps

A few friendly words of encouragement and clear guidance are sometimes all it takes to welcome someone new to an open source community. This is true whether a new user or contributor shows up at an in-person or virtual event such as KubeCon Europe, which the AWS Open Source team attended this spring in Valencia, […]

Google Analytics is banned in some EU member states and more are likely to follow. Here is to why you should remove Google Analytics today.

Container images are a popular and standard format to package applications. Building secure, high performance container images can be challenging. Cloud native buildpacks provide solutions to create container images that are secure, high performance, and easy to deploy.

What's the hardest thing about monitoring your critical business workflows? The fact that, quite often, key parts of a digital user journey aren't actually "yours."

In the book, "Life and the Art of Engineering," author Haresh Sippy said, “Automation is cost-cutting by tightening the corners, not cutting them.” Today,

DuploCloud hopes to disrupt infrastructure-as-code with its low code/no code solution that helps developers deploy in the cloud.

The dividends of a declarative approach to GraphQL are in velocity, better performance, reduction in code complexity an better and faster evolution.

At HasuraCon 2022, GraphQL specialist Hasura announced Hasura GraphQL Data Connector SDK, API evolution to support emerging data workloads, GraphQL DevOps improvements, and increased cloud-vendor availability.

Today’s network applications have shifted from CPU-intensive to I/O-intensive, and most of the network servers are based on the C-S model, i.e., the Client-Server model, which requires a lot of network communication between the client and the server, which also determines the performance bottleneck of modern network applications: I/O. The standard I/O interface of the traditional Linux operating system is based on data copy operations, i.e. I/O operations result in

Issues at Content Delivery Network (CDN) providers caused several high-profile outages in recent years — here's how to increase resilience.

When it comes to building any platform, the hardware is the easiest part and, for many of us, the fun part. But more than anything else, particularly at

Cisco’s Open Source Tech Leader Julia Ferraioli shares some alternative ways to define what is and is not ‘open source.’

A software’s architecture is the foundation for any successful software system and will influence everything from maintainability…

In this tutorial, you will learn how to create an Elixir app cluster running in Docker Swarm, which maintains node connectability if swarm scales up/down.

I dabbled in Phoenix for a while now, but never really got my hands dirty with it right up until now. Apart from the whole framework being surprisingly well thought through, there are a few things that strike me as being done exceptionally well in Phoenix, compared to the rest of modern web frameworks. 1. Striking a balance between flexibility and strictness Modern web frameworks can be roughly divided into two camps:

This hands-on book will quickly get you building, querying, and comparing graph data models using a robust, concurrent programming language—Elixir.

Explore Graph Models and Databases for Large and Irregular Data Sets