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Multi-Tenant Architectures
Multi-tenancy Application Deployment Architecture could be modeled in 4 broad ways: Separate Apps & Separate Databases Shared ...
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Why is there only one Snap Store?
Snap and Flatpak are the basis of two universal app stores for Linux: the Snap Store and Flathub. Interestingly, Flatpak has multiple repositories: Flathub is the main one but both Fedora and Elementary OS also host their own store. In contrast; there is only one Snap store. Why is that?
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AWS NLBs and the mixed up TCP connections
One of my services was running into timeouts, because connections were being reset by clients. I had assumed that it couldn't be the Network Load Balancers (NLB
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Scaling Linux Services: Before accepting connections
Theo Julienne is a software & infrastructure engineer.
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Programming Inside a Container
I have a small collection of servers, laptops and desktops. My servers were purchased and configured at different times. By design, they have different hardware and software configurations. I have processors from AMD, Intel, Ampere and Rockchip. I have a wide range of Linux distributions, both old and new. I also…
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I push, therefore I am: two days at Etsy (2013)
Netflix and Etsy ran a brief "developer exchange program" in 2013. Etsy sent one of their best to hang out at Netflix for 2 days. And a few months later, Netflix sent... me. This was a writeup of the experience that I shared with my team at Netflix and the people I interacted with at Etsy. It was fun to write, I…
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Benchmarking static website hosting providers
Static websites are still a hot topic. They are fast, and they're incredibly secure because there isn't a CMS to hack. Once you build a static website, however, the question becomes: Where do I host?In other words: what is the fastest static webs...
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WireGuard on K8s: road-warrior-style VPN server
Road-warrior-style VPN server
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I wrote a beginners guide to Kubernetes
In this multi-part series of articles I'll try and capture everything I think someone who wants to learn and work with Kubernetes should know about. If you h...
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Migrating to CockroachDB
CockroachDB is a newSQL database, behaving much like a traditional database while providing consistent HA and scalability out of the box.
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A log/event processing pipeline you can't have (2019)
Let me tell you about the still-not-defunct real-time log processing pipeline we built at my now-defunct last job. It handled logs from a la...
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Bash HTTP Monitoring Dashboard
Published: 27-12-2020 | Last update: 11-01-2021 | Author: Remy van Elst | Text only version of this article
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Running servers and services well is not trivial (2018)
You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace , the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this applies to versions…
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Untangling microservices, or balancing complexity in distributed systems
The microservices honeymoon period is over. Uber is refactoring thousands of microservices into a more manageable solution [1]; Kelsey Hightower is predicting monoliths are the future [2]; and even Sam Newman is declaring that microservices should never be the default choice, but rather a last resort [3]. What’s going…
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Cloud Traffic
I recently watched Build an enterprise-grade service mesh with Traffic Director , featuring Stewart Reichling and Kelsey Hightower of GCP, and of course Google Cloud’s Traffic Director . Coming at this with a brain steeped in 5½ years of AWS technology and culture was surprising in ways that seem worth sharing.
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Azure cracks, AWS strong: Covid-19 stress-tests the cloud
The post analyzes how major cloud platforms are faring under pressure and usage spikes caused by COVID-19 during March 2020.
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Creating a Home IPv6 Network
One of the recent experiences of Linux Plumbers Conference convinced me that if you want to be part of a true open source WebRTC based peer to peer audio/video interaction, you need an internet address that’s not behind a NAT. In reality, the protocol still works as long as you can contact a stun server to tell you…
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Initial Impressions of WSL 2
Soon the Windows May 2020 Update (20H1) will be released upon the world. This update will contain some nice UI improvements, but most relevant to me it allows Web Developers on Windows to upgrade to WSL 2. This is a significant milestone in the #davegoeswindows saga and it’s worth posting about what it means going…
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Turning the Raspberry Pi 4 into a Mini Server
Since the Raspberry Pi 4 came out last year, we now have an excellent candidate to base the mini server on. The faster processor and option for up to 8GB of RAM opens up more possibilities for what you can do with it, including now being more than capable as a general Linux desktop system, so with all that in mind…
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We are building a CLI first PaaS without a web frontend
At the start of this hectic year I have joined Micro, an open source microservices platform. The company was born out of a Go framework. We took the concepts...
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Upgrade Raspberry Pi 4 with a NVMe boot drive
You can upgrade the storage in your Raspberry Pi 4 with an NVMe drive using USB3 to get more reliable storage and faster I/O than an SD…
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Beginners guide to gateways and proxies
Have you heard of gateways, proxies, load balancer, API gateways? This article explains what gateways are, what is their purpose and how they work with pract...
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Ansible Alternatives in Python
My VPS will soon expire, so I've decided to try to automate its deployment. After spending evening by studying Ansible alternatives, I've decided to use pyinfra, and I am quite happy with it.
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