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The most popular blog posts about infrastructure & devops on Hacker News. 1,840 posts.
If you’ve perused the ActivityPub feed of certificates whose keys are known to be compromised , and clicked on the “Show More” button to see the name of the certificate issuer, you may have noticed that some issuers seem to come up again and again. This might make sense – after all, if a CA is issuing a large volume…
You remember that time you passive-aggressively completed a story in the most useless way possible to check that checkbox? That’s most…
Since declaring our intention to leave the cloud in October, we've been busy at work making it so. After a brief detour down a blind alley with an enterprise Kubernetes provider, we found our stride building our own tools, and successfully moved the first small application out of the cloud a few weeks ago. Now our…
.NET is a managed runtime, which means that it provides high-level features that ‘manage’ your program for you, from Introduction to the Common Language Runtime (CLR) (written in 2007):
Recently I’ve been thinking a lot about infrastructure complexity, and the current state of infrastructure as code. This is problem space that many talented people are tackling.
If you ever have run a Linux-based operating system you are probably aware of the way that software is usually distributed on them: Using a software repository. Repositories are great for numerous …
Are cross-project changes in a single atomic commit the key advantage of monorepos? I do not think so.
In 2001, Microsoft's former CEO— Steve Ballmer— was quoted by the online tech news publication, The Register, saying: Linux is a
On the need for low-carbon and sustainable computing and the path towards zero-carbon computing.
In my last post I talked about why modern observability has become so expensive. At the end of the post I posit a question: What if by default we never send any telemetry at all? In this post I’m goin
I recently made a setup at work where I had a Nginx server facing the user, which would forward requests to a service running behind an AWS Elastic Load Balancer (aka. ELB). That in itself doesn’t sound like a difficult task, you just find the hostname for the ELB and point Nginx at it with a proxy_pass statement like…
This is the BliKVM PCIe, a full computer on a PCI Express card. This is an IP KVM (Internet Protocol Keyboard-Video-Mouse) that can be put inside another computer or server. Most server motherboards already have remote 'lights-out' management functionality built in. Most frequently this is referred to as IPMI…
Perhaps you too remember that crayon-factory segment from Sesame Street. The one where they show dramatic shots of hot orange wax getting poured into vats and molds and eventually labeled and boxed up into neat packages of the rainbow, while Skrillex-junior music played in the background. This was my favorite segment…
I have finished my cruise now, which was mostly holiday, but also some work. I did some training for my mates (mainly in C coding) and we di...
You’ve likely heard everyone at the office or online proclaim that “K8s has eaten everyone’s lunch!” or that “everything should be in a docker container!”. While there are advantages to the above methodologies; it’s very easy to have cargo-culted their adoption; especially for Kubernetes (K8s). I find the biggest…
Incident #210 Status Complete, one action item outstanding. Summary Sentinel consumed by wolf after repeated false alarms. Impact Loss of sentinel. No flock impact. Root causes Sentinel generated noisy alerts due to premature deployment, incomplete training, and overly monotonous task. Oncalls failed to respond to…
This will create the neccesary directories, install nginx and gunicorn under supervisord control and upload new configuration files made from templates on all the app-servers. Additionally it deploys the newest codebase from your local git branch.
I’ve been having some troubles with Zigbee. Yes, at our airbnb we have a rather big dining room where I’ve put 7 Zigbee RGBWW Smart bulbs. The problem is that each time I try to turn all 7 on or off there’s either a lag or some of them just won’t switch on or off. The controller is a Sonoff Zigbee 3.0 USB dongle, yes…
Monorepos and Forced Migrations By most metrics, Google is a great place to work. Top tier compensation, free food, and largely co-workers who want do...
I took Heroku for granted, and a month into setting up my own infra, I now know how much it bought me.
Goodbye, old friend. We’ve been traveling together since 2010, and you’ve faithfully served all my virtual machine needs well, first with VirtualBox and then later with libvirt and KVM . But, as they 1 say, all good things must pass.
I recently took part in a panel discussion discussing continuous delivery of micro-services hosted by ElectricCloud with Daniel Rolnick, Darko Fabijan and An...
High-quality sound in FreeBSD: system parameters, bitperfect signal, real-time operation, equalizer, MPD, FFmpeg filters.
There are many news reports of a ransomware worm . Much of the National Health Service in the UK has been hit; so has FedEx . The patch for the flaw exploited by this malware has been out for a while, but many companies haven’t installed it. Naturally, this has prompted a lot of victim-blaming: they should have…
