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Bye CUPS: Printing with Netcat
Turns out printing doesn't have to be hard
Most cited
Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 152 posts.
Infrastructure & DevOps
Any year
122
Raspberry Pi 4 not working with some chargers
The blog of Tyler Ward (aka scorpia)2019401 points300 commentscited by 3Hardware & Electronics details
The new pi has been released and it has a USB Type-C connector for power however people are finding some chargers are not working with it (notably macbook chargers). Some have speculated that this is due to a manufacturer limitation on the power supplies however it is actually due to the incorrect detection circuitry…
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Why are nuclear power construction costs so high?
Nuclear power currently makes up slightly less than 20% of the total electricity produced in the US, largely from plants built in the 70s and 80s.
124
Scaling Mastodon is impossible
Now that Twitter is dying, what can replace it?
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The EC2 firewall is broken
As most standards-aware network administrators know, blocking ICMP is evil. Sure, there are certain ICMP packets which should be blocked; but to quote RFC 2979 :
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AWS Elasticsearch: a fundamentally-flawed offering
I'm currently working on a logging project that was initially implemented using AWS Elasticsearch. Having worked with large-scale mainline Elasticsearch clusters for several years, I'm absolutely stunned at how poor Amazon's implementation is and I can't fathom why they're unable to fix or at least improve it. I…
128
OpenBSD on a Laptop
A guide to a secure and streamlined installation of OpenBSD 6.4 on a laptop.
129
A better Kubernetes from the ground up
If we were to start over from first principles, what would I do differently than k8s?
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2022 was the year of Linux on the Desktop?
It finally happened!
132
PgBouncer is useful, important, and fraught with peril
Updated 2024-09-17 to reflect updated PgBouncer support for protocol-level prepared statements 🐘 To start, I want to say that I’m appreciative that PgBouncer exists and the work its open source maintainers put into it. I also love working with PostgreSQL, and I’m thankful for the incredible amount of work and…
133
Docker Considered Harmful (2016)
A note in advance: This is absolutely not about Docker being too "opinionated" for me, or other tools being more flexible. I believe that learning and using Docker is just plain more complicated than learning and using the tools I describe below. Docker is genuinely more complex and harder to use than the…
134
Bare-Metal Kubernetes, Part I: Talos on Hetzner
I’ve been running a Kubernetes cluster on a mix of virtual and bare metal machines with Hetzner for about a year now, and while the setup has served me well, being a very exploratory exercise at the time it wasn’t very well documented.
135
Modern CI is too complex and misdirected (2021)
The state of CI platforms is much stronger than it was just a few years ago. Overall, this is a good thing: access to powerful CI platforms enables software developers and companies to ship more reliable software more frequently, which benefits its users/customers. Centralized CI platforms like GitHub Actions, GitLab…
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Setting Up an Ad-Blocking VPN with WireGuard and Pihole
This guide will walk you through the setup of a remote machine that will act as a personal VPN server at the cost of 3 to 5 USD per month. We will also configure it to act as a DNS resolver that will automatically block spam, tracking, advertising and malware domains on all of your connected devices.
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Stripped-down Kubernetes on the Raspberry Pi
Join me as I test-drive the smallest ever Kubernetes distribution k3s. Find out how this runs on Raspberry Pi compared to kubeadm with Docker.
141
How much Anthropic and Cursor spend on Amazon Web Services
So, I originally planned for this to be on my premium newsletter, but decided it was better to publish on my free one so that you could all enjoy it. If you liked it, please consider subscribing to support my work. Here’s $10 off the first year of annual.
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PostgreSQL High Availability Solutions – Part 1: Jepsen Test and Patroni
Note: code used in this article can be found on the Github repo jepsen-postgres-ha .
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Full-system dynamic tracing on Linux using eBPF and bpftrace
How do you debug an application, library or an entire system with multiple processes? One answer: tracing. An introduction into bpftrace, and an overview of the Linux tracing ecosystem (DTrace, eBPF, uprobes, etc).
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Building Container Images with Nix
Dockerfiles are de facto standard for creating container images. In this article I highlight some issues with this approach and I propose building container images with Nix.
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Unikernel Profiling from dom0
Unikernel Profiling: Flame Graphs from dom0. This post investigates performance profiling of Unikernels, and with a proof of concept shows that with a little work a lot of observability is possible.
147
Coding Agent VMs on NixOS with Microvm.nix
I have come to appreciate coding agents to be valuable tools for working with computer program code in any capacity, such as learning about any program’s architecture, diagnosing bugs or developing proofs of concept. Depending on the use-case, reviewing each command the agent wants to run can get tedious and…
148
Wireguard VPN: Typical Setup (2017)
I recently discovered the awesome Wireguard VPN tunnel and I was sold. Wireguard is a simple, kernel-based, state-of-the-art VPN that also happens to be ridiculously fast and uses modern cryptographic principles that all other highspeed VPN solutions lack.
149
Minisforum Stuffs Entire Arm Homelab in the MS-R1
The Minisforum MS-R1 uses the same Cix CD8180 Arm SoC as the Orion O6 I reviewed earlier this year. But everything else about this thing is different. What this thing should be, is a box that runs Linux and can compete with at least an Apple M1 Mac mini, or a mid-range Mini PC. But what we got... is something…
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The security scanner that cried wolf
If you’ve ever been alarmed by how many security vulnerabilities your Docker image has, even after you’ve installed security updates, here’s what’s going on.