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New
The latest blog posts to take off on Hacker News. 6,947 posts.
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Time on Unix
An article covering everything you need to know about time on Unix. Time, a word that is entangled in everything in our lives, something we're intimately familiar with. Keeping track of it is important for many activities we do.
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Psychic Paper: iOS Sandbox Escape
Siguza’s Blog
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Complexity Has to Live Somewhere
We try to get rid of the complexity, control it, and seek simplicity. I think framing things that way is misguided. Complexity has to live somewhere. Embrace it
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Urbit OS 1
OS 1 is somewhere between ‘productivity software’ and a ‘social network’. We think it’s the beginning of an altogether new breed of social computing.
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Jepsen: Dgraph 1.1.1
Dgraph is a graph database which aims to provide scalable, highly-available, and snapshot-isolated transactions over a labeled directed graph, while minimizing network communication for performance. Conceptually, Dgraph stores a set of (entity, attribute, value) triples. Entities (also known as subjects), are compact…
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Building a WireGuard jail with FreeBSD's standard tools
Recently, I had an opportunity to build a WireGuard jail on a FreeBSD 12.1 host. As it was really quick and easy to setup and it has been working completely fine for a month, I’d like to share my experience with anyone interested in this topic. I would like to use WireGuard app on my Android phone to access my home…
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Mastering systemd: Securing and sandboxing applications and services
This series of articles will explore some of my favorite Red Hat Enterprise Linux (RHEL) 8 capabilities that are enabled by systemd. Thus, this series assume...
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Teleforking a Process onto a Different Computer
One day a coworker mentioned that he was thinking about APIs for distributed compute clusters and I jokingly responded “clearly the ideal API would be simply calling telefork() and your process wakes up on every machine of the cluster with the return value being the instance ID”. I ended up captivated by this idea: I…
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I translated a simple C program to x86_64 and it was slower
A blog about computing and other fun.
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Myths about USB NKRO and how USB HID works
A common myth about USB keyboards is that they can only support 6-key rollover, and not report more than 6 keys being pressed at a time. In fact, this is wholly untrue; the USB HID device class can support full N-key rollover (NKRO). While keyboards which purport to support USB NKRO are now common, some of them have…
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Which is better on Android: divide by 2 or shift by 1?
I've been porting the AndroidX collection library to Kotlin multiplatform to experiment with binary compatibility, performance, tooling, and the different memory models. Some of the data structures in the library use array-based binary trees to store elements. The Java code has a lot of shifts to replace power-of-two…
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What a one line change did to the Chrome sandbox
Posted by James Forshaw, Project ZeroThe Chromium sandbox on Windows has stood the test of time. ...
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An important safety note about chown and symlinks (also chmod and chgrp)
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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On WD Red NAS Drives
On WD Red NAS Drives - Data - Western Digital (WD) Corporate Blog
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Homelab: Intel NUC with the ESXi Hypervisor
In this blog post I tell my experience mounting a minimalist homelab with a Intel NUC and the ESXi hypervisor.
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My experience with NixOS
In a nutshell, NixOS is a operating system based on Linux that provides a declarative package and configuration management.
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Ruby Concurrency Final Report
Ruby's native I/O methods traditionally blocked the calling fiber, leaving event-loop libraries to provide replacement wrappers. This Ruby Concurrency Progress Report presents a lightweight per-thread Fiber Scheduler which lets those native operations cooperate with an event loop. It explains the implementation and…
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What Outranks Thread Priority?
This investigation started, as so many of mine do, with me minding my own business, not looking for trouble. In this case all I was doing was opening my laptop lid and trying to log on.The first fe…