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Learnings from kCTF VRP's 42 Linux kernel exploits submissions
Tamás Koczka, Security Engineer In 2020 , we integrated kCTF into Google's Vulnerability Rewards Program (VRP) to support researchers evalu...
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The latest blog posts to take off on Hacker News. 555 posts.
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I booted Linux 293k times in 21 hours
And it only took 21 hours. Linux 6.4 has a bug where it hangs on boot, but probably only 1 in 1000 boots (and rarer if using Intel hardware for some reason). It’s surprising to me that no one…
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Desktop Linux Hardening (2022)
Linux is not a secure desktop operating system. However, there are steps you can take to harden it, reduce its attack surface, and improve its privacy. Before we start… Some of the sections will include mentions of unofficial builds of packages like linux‑hardened, akmod, hardened_malloc, and so on. These are not…
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NixOS for the Impatient
Using NixOS for a more tractable computing setup.
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Web Apps on macOS Sonoma 14 Beta
The personal blog of Thomas Steiner
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“csinc”, the AArch64 instruction you didn’t know you wanted
After a long time of not publishing anything and being passive about doing any writing in this blog, I am coming back for … however many articles I can. Today I want to talk about an underrat…
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OpenGL 3.1 on Asahi Linux
Porting Linux to Apple Silicon
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Why SQLite is so great for the edge
Everyone already knows that SQLite is great. This article makes the praise much more specific though — it explains why we, the developers of libSQL, think that SQLite is a great choice for bringing your data to the edge.
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The growing pains of database architecture
How the Figma infrastructure team reduced potential instability by scaling to multiple databases
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Why does MPEG Transport Stream still exist?
MPEG-TS is still used extensively, even in “modern” transport mechanisms such as SRT, RIST and Zixi. Why though?
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Linux on the Xbox 360
Hello and welcome back to The Cool Blog. I've been meaning to write more but I had these things called finals and then I had to move home for the summer and then I got addicted to Satisfactory again and yeah. Anyway I'm back and time for me to share a project of mine that I've been working on since like March.
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Anything can be a message queue if you use it wrongly enough
Xe Iaso's personal website.
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Rust to Assembly: Understanding the Inner Workings of Rust
How Rust compiles to assembly: enum memory layout, smart pointers, static vs dynamic dispatch, vtables, closures, vector iteration and async state machines.
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Learn x86-64 assembly by writing a GUI from scratch
Most people think assembly is only to be used to write toy programs for learning purposes, or to write a highly optimized version of a specific function inside a codebase written in a high-level language.
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Box64 and RISC-V
Box64 and RISC-V, the challenges of wrtting the Dynarec, and benchmarks
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Modern CPUs have a backstage cast
If you take someone with intermediate knowledge of computing in the right areas, and ask them how an x86 machine boots, they'll probably start telling you about how the CPU first comes up in real mode and starts executing code from the 8086 reset vector of FFFF:FFF0. This understanding of how an x86 machine boots has…
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WASIX, the Superset of WASI Supporting Threads, Processes and Sockets
Today we are very excited to launch a new initiative that will start shaping the future of WebAssembly on both the browser and the server. WASI was ann...
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300ms Faster: Reducing Wikipedia's total blocking time
How two simple steps improved the responsiveness of Wikipedia's mobile site
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A terminal case of Linux
Has this ever happened to you? You want to look at a JSON file in your terminal, so you pipe it into jq so you can look at it with colors and stuff. That’s a useless use of cat. …oh hey cool bear....
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The Mysterious 50 Ohm Impedance: Where It Came from and Why We Use It (2021)
50 Ohm impedance became the standard impedance used in RF transmission lines long ago, but it is still useful today and is a standard reference impedance used in test equipment.
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Implementing a distributed key-value store on top of implementing Raft in Go
Implementing the Raft distributed consensus protocol in Go
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Jails on FreeBSD
We have had Jails on FreeBSD since 4.0 came out 19 years ago in March 2000. This describes how to setup jails on FreeBSD 12 without any helpers.
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I didn’t learn Unix by reading all the manpages (2022)
Originally drafted as a thread on hackers.town , after Abbie Normal asked me to expand on a side comment in a discussion of documentation .
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