C10K 問題 (the C10K problem) は1999年に Dan Kegel が発表した文章、ならびにそこで提示された「問題」です。文章はその後も2000年代前半に何度か更新されているのですが、さすがに令和に読み返すと、当初の問題意識がわかりにくいところがあります。 2000年からの10年は、 ソフトウェア面では、select(2), poll(2) にかわる新しいシステムコールの実装と、それを使ったアプリケーションの普及 ハードウェア面では、x86 アーキテクチャの64ビット移行、仮想化命令の追加と、マルチコア化 さらにそこにクラウドも登場する、面白い時代でした。ここでは、それらの出来事を中心に、さらに、当時の雰囲気をつたえるような日本国内のブログやインタビュー記事をまとめることで、C10K 問題が、さまざまな側面から解決されていく流れを説明したいと思います。 書き足したいと
Last week, I built a tiny Linux system from scratch, and booted it on my laptop! Here’s what it looked like: Let me tell you how I got there. I wanted to learn more about how the Linux kernel works, and what’s involved in booting it. So I set myself the goal to cobble together the bare neccessities required to boot into a working shell. In the end, I had a tiny Linux system with a size of 2.5 MB,
As someone makes more money, expenses once considered luxuries can suddenly become seen as necessities: It’s called lifestyle creep. In the world of software development, we can suffer from a similar affliction: stack creep. Where hardware limitations once restricted developers to a minimalist approach, increased processing power, memory, and storage have led many down a more maximalist path. It’s
Project Glasswing: Securing critical software for the AI era
IntroductionToday we’re announcing Project Glasswing1, a new initiative that brings together Amazon Web Services, Anthropic, Apple, Broadcom, Cisco, CrowdStrike, Google, JPMorganChase, the Linux Foundation, Microsoft, NVIDIA, and Palo Alto Networks in an effort to secure the world’s most critical software.We formed Project Glasswing because of capabilities we’ve observed in a new frontier model tr
Sapling: Source control that’s user-friendly and scalable
Sapling is a new Git-compatible source control client. Sapling emphasizes usability while also scaling to the largest repositories in the world. ReviewStack is a demonstration code review UI for GitHub pull requests that integrates with Sapling to make reviewing stacks of commits easy. You can get started using Sapling today. Source control is one of the most important tools for modern developers,
The Untold Story of SQLite
TranscriptNote: This podcast is designed to be heard. If you are able, we strongly encourage you to listen to the audio, which includes emphasis that's not on the page IntroductionAdam: Hello and welcome to CoRecursive. I’m Adam Gordon Bell. Each episode of CoRecursive, someone shares the fascinating story behind some piece of software being built. On April 1st, 2014, an open source maintainer got
GitHub - modelcontextprotocol/servers: Model Context Protocol Servers
Official integrations are maintained by companies building production ready MCP servers for their platforms. 21st.dev Magic - Create crafted UI components inspired by the best 21st.dev design engineers. 2slides - An MCP server that provides tools to convert content into slides/PPT/presentation or generate slides/PPT/presentation with user intention. ActionKit by Paragon - Connect to 130+ SaaS inte
AWS Lambda Under the Hood
Transcript Danilov: We'll talk about AWS Lambda, how it's built, how it works, and why it's so cool. My name is Mike Danilov. I'm a Senior Principal Engineer at AWS Serverless. A decade ago, I joined EC2 networking team, and it was a fantastic ride. Then, five years back, I heard about Lambda. I really liked the simplicity of the idea. We run your code in the cloud, no servers needed, so I joined
Unboundでお手軽DNSシンクホール
ソースコードの変更 #見出しにジャンプ git clone https://github.com/NLnetLabs/unbound.git -b release-1.21.0rc1 -o upstream forward-addrのCNAME Scrubbing動作を止める。フォワード処理の再起の必要性について議論したIssueは紛糾したまま閉じられてしまったので、公式に対応することはないだろう。 - if(!scrub_message(pkt, prs, &iq->qinfo_out, iq->dp->name, - qstate->env->scratch, qstate->env, qstate, ie)) { - /* if 0x20 enabled, start fallback, but we have no message */ - if(event == module_e
GitHub Actions Is Slowly Killing Your Engineering Team - Ian Duncan
I was an early employee at CircleCI. I have used, in anger, nearly every CI system that has ever existed. Jenkins, Travis, CircleCI, Semaphore, Drone, Concourse, Wercker (remember Wercker?), TeamCity, Bamboo, GitLab CI, CodeBuild, and probably a half dozen others I’ve mercifully forgotten. I have mass-tested these systems so that you don’t have to, and I have the scars to show for it, and I am her
iOSのファイル共有機能5パターンの検証とセキュリティ対策まとめ - GMO Flatt Security Blog
はじめに こんにちは。株式会社Flatt Securityセキュリティエンジニアの志賀(@Ga_ryo_)です。 iOSアプリケーションを開発する上で、メディアファイルやドキュメントファイルを他のアプリケーションと共有する機能を実装するケースがあると思います。iOSでは、ファイル共有のために様々な機能を提供していますが、OSの更新に従って機能が増え、把握が困難になってきたと感じている方もいることかと思います。 また、そういった機能が追加された際に実装方法に関する解説をしてくださる方々がいらっしゃると思いますが、細かい仕様について語られることはあまり多く無いという印象です。 そこで本稿では、iOSアプリケーション上で利用できる各種ファイル共有機能を5つのパターンに分けて検証しつつ、これらを利用する上で注意すべき点についても解説していこうと思います。 注) 本稿では度々サンプルコードを提示する
This is a companion article to a talk about Docker+WebAssembly that we gave at "Docker Community All Hands 7, Winter Edition" on Dec 15th, 2022. Introduction Recently Docker announced support for WebAssembly in cooperation with WasmEdge. This article will explain what is WebAssembly, why it is relevant to the Docker ecosystem and provide some hands-on examples to try on. We assume you are familiar
Assessing Claude Mythos Preview’s cybersecurity capabilities April 7, 2026 Nicholas Carlini, Newton Cheng, Keane Lucas, Michael Moore, Milad Nasr, Vinay Prabhushankar, Winnie Xiao Hakeem Angulu, Evyatar Ben Asher, Jackie Bow, Keir Bradwell, Ben Buchanan, David Forsythe, Daniel Freeman, Alex Gaynor, Xinyang Ge, Logan Graham, Kyla Guru, Hasnain Lakhani, Matt McNiece, Mojtaba Mehrara, Renee Nichol, A
GitHub Actions Is Slowly Killing Your Engineering Team - Ian Duncan
I was an early employee at CircleCI. I have used, in anger, nearly every CI system that has ever existed. Jenkins, Travis, CircleCI, Semaphore, Drone, Concourse, Wercker (remember Wercker?), TeamCity, Bamboo, GitLab CI, CodeBuild, and probably a half dozen others I’ve mercifully forgotten. I have mass-tested these systems so that you don’t have to, and I have the scars to show for it, and I am her
Update 1.69.1: The update addresses these issues. Update 1.69.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the June 2022 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: 3-way merge editor - Resolve merge conflicts wit
WebVM 2.0: A complete Linux Desktop Environment in the browser via WebAssembly
Back to blog WebVM 2.0: A complete Linux Desktop Environment in the browser via WebAssembly WebVM is a full Linux environment running in the browser, client-side. It is a complete virtual machine, with support for persistent data storage, networking and, as of today’s release, Xorg and complete desktop environments. In an instance of WebVM, everything executes locally within the browser sandbox. W
Join a VS Code Dev Days event near you to learn about AI-assisted development in VS Code. Update 1.67.1: The update addresses this security issue. Update 1.67.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the April 2022 release of Visual Studio Code. There are many updates in this version that we hope
Version 1.108 is now available! Read about the new features and fixes from December. Release date: June 12, 2025 Security update: The following extension has security updates: ms-python.python. Update 1.101.1: The update addresses these issues. Update 1.101.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome t
If you are reading this message, the experiment below is still ongoing. This page was served to you by a real Nintendo Wii. You can check the Wii’s live(-ish) status page for system load info. For a long time, I’ve enjoyed the idea of running general-purpose operating systems on decidedly not-general-purpose hardware. There’s been a few good examples of this over the years, including a few which w
この記事は「自作OS Advent Calendar 2024」の7日目の記事です（JSTとは言ってない） 自作OS Advent Calendar 2024 - Adventar WasabiOS とは 私が日本国内で開発している、Rustで書かれたOSなので、Wa (和) + Sabi (Rust) = Wasabi という名前になっています。 ちなみに、この上で動くウェブブラウザを、いつも配信を一緒にやっている d0iasm さんが実装してくれて、 それについてはつい先日、書籍が出版されたので、興味のある方はそちらもぜひご一読ください！ direct.gihyo.jp 作って学ぶ ブラウザのしくみ 届いた!!!（ @d0iasm さんの本です!!!) ブラウザをRustでぜんぶ自作するぞ!!!という力強い内容となっているので、ブラウザのしくみに興味がある高レイヤの人々も、キラーアプリ
How we clone a running VM in 2 secondsOr... how to clone a running Minecraft server At CodeSandbox we run your development project and turn it into a link you can share with anyone. People visiting this link can not only see your running code, they can click “fork” and get an exact copy of that environment within 2 seconds so they can easily contribute back. Give it a try with this example, or imp
Introduction to Go 1.25 The latest Go release, version 1.25, arrives in August 2025, six months after Go 1.24. Most of its changes are in the implementation of the toolchain, runtime, and libraries. As always, the release maintains the Go 1 promise of compatibility. We expect almost all Go programs to continue to compile and run as before. Changes to the language There are no languages changes tha
Nginx 1.22 Released With OpenSSL 3.0 Support Written by Michael Larabel in Free Software on 24 May 2022 at 02:00 PM EDT. 2 Comments Nginx as the lightweight web-server known for its speedy performance is out today with the version 1.22 feature release. Nginx 1.22 brings OpenSSL 3.0 compatibility, hardening against request smuggling and cross-protocol attacks, and Application-Layer Protocol Negotia
Join a VS Code Dev Days event near you to learn about AI-assisted development in VS Code. Update 1.70.1: The update addresses these issues. Update 1.70.2: The update addresses these issues. Update 1.70.3: This update is only available for Windows 7 users and is the last release supporting Windows 7. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welc
Anubis.
Hey… quick question, why are anime catgirls blocking my access to the Linux kernel? Intro I’ve started running into more sites recently that deploy Anubis, a sort of hybrid art project slash network countermeasure. The project “weighs the souls” of HTTP requests to help protect the web from AI crawlers. If you’ve seen anime catgirl avatars when visiting a new website, that’s Anubis. A website bloc
container2wasm Converter: Running Linux-Based Containers on WASM and Browser
Though more and more tools and programming languages start to support WebAssembly (WASM), porting existing applications to WASM isn’t easy and costs extra time for development. To solve this issue, we’re working on a container-to-wasm image converter “container2wasm” that enables to run Linux-based containers on WASM(WASI) runtimes and browser. $ c2w riscv64/ubuntu:22.04 out.wasm $ wasmtime out.wa
IBM, Red Hat and Free Software: An old maddog’s view Copyright 2023 by Jon “maddog” Hall Licensed under Creative Commons BY-SA-ND Photo: © Santiago Ferreira Litowtschenko Several people have opined on the recent announcement of Red Hat to change their terms of sales for their software. Here are some thoughts from someone who has been around a long time and been in the midst of a lot of what occur
Version 1.108 is now available! Read about the new features and fixes from December. Release date: May 8, 2025 Update: Enable Next Edit Suggestions (NES) by default in VS Code Stable (more...). Update 1.100.1: The update addresses these security issues. Update 1.100.2: The update addresses these issues. Update 1.100.3: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Univers
Welcome to my ::'########::'##::::::::'#######:::'######::: :: ##.... ##: ##:::::::'##.... ##:'##... ##:: :: ##:::: ##: ##::::::: ##:::: ##: ##:::..::: :: ########:: ##::::::: ##:::: ##: ##::'####: :: ##.... ##: ##::::::: ##:::: ##: ##::: ##:: :: ##:::: ##: ##::::::: ##:::: ##: ##::: ##:: :: ########:: ########:. #######::. ######::: ::........:::........:::.......::::......:::: CTF writeups, prog
Update 1.78.1: The update addresses this security issue. Update 1.78.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the April 2023 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: Accessibility improvements - Better scre
Update 1.97.1: The update addresses these security issues. Update 1.97.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the January 2025 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: Next Edit Suggestions (preview) - Co
The Deno company has raised $21M in an investment round led by Sequoia Capital with participation from Nat Friedman, Four Rivers Ventures, Insight Partners, Long Journey Ventures, Dylan Field, Automattic, Netlify, and Shasta Ventures. Developers today struggle with endless complexity in building web services. There is a jungle of tooling that must be well understood and delicately combined. There
April 12, 2023 This article was contributed by Lars Wirzenius My name is Lars Wirzenius, and I was there when Linux started. Linux is now a global success, but its beginnings were rather more humble. These are my memories of the earliest days of Linux, its creation, and the start of its path to where it is today. I started my computer science studies at the University of Helsinki in the fall of 19
Join a VS Code Dev Days event near you to learn about AI-assisted development in VS Code. Update 1.66.1: The update addresses these issues. Update 1.66.2: The update addresses these security issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the March 2022 release of Visual Studio Code. There are many updates in this version that we ho
This paper reflects work done in late 2022 and 2023 to audit for vulnerabilities in terminal emulators, with a focus on open source software. The results of this work were 10 CVEs against terminal emulators that could result in Remote Code Execution (RCE), in addition various other bugs and hardening opportunities were found. The exact context and severity of these vulnerabilities varied, but some
The wait is over. 1Password for Linux is officially here. Linux support is far and away our most requested feature. Bringing the world’s most loved password manager to such a passionate community – and building on the incredible work of the open source community – is both humbling and exciting for all of us at 1Password. So today we’re rolling out the red carpet for our Linux friends. 🤗 I know ma
Eyes Above The Waves Robert O'Callahan. Christian. Repatriate Kiwi. Hacker. Archive 2025 June Not Joking About AI Building A PC April Rakiura Northwest Circuit February Tongariro Northern Circuit 2025 January Pararaha Valley 2025 2024 December Mt Arthur/Tablelands/Cobb Valley November Queen Charlotte Track 2024 October Auckland Half Marathon 2024 Advanced Debugging Technology In Practice June Waih
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Hachi: An (Image) Search engine Only the dead have seen the end of war .. George Santayana For quite some time now, i have been working on and off on a fully self-hosted search engine, in hope to make it easier to search across Personal data in an end to end manner. Even as individuals, we are hoarding and generating more and more data with no end in sight. Such "personal" data is being stored fro
Compatible with Linux kernel 6.12 or newer, requires BTF kernel support Getting started Once installed, open the user interface by running littlesnitch in a terminal, or go straight to http://localhost:3031/. You can bookmark that URL, or install it as a Progressive Web App. Any Chromium-based browser supports this natively, and Firefox users can do the same with the Progressive Web Apps extension
Rewriting Rust
The Rust programming language feels like a first generation product. You know what I mean. Like the first iPhone - which was amazing by the way. They made an entire operating system around multitouch. A smart phone with no keyboard. And a working web browser. Within a few months, we all realised what the iPhone really wanted to be. Only, the first generation iphone wasn't quite there. It didn't ha
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令和にふりかえる C10K 問題
Building a tiny Linux from scratch
Marie Kondo your software stack with open source
WebAssembly: Docker without containers!
Claude Mythos Preview \ red.anthropic.com
June 2022 (version 1.69)
April 2022 (version 1.67)
May 2025 (version 1.101)
This blog is hosted on a Nintendo Wii
今年のWasabiOS進捗振り返り - /var/log/hikalium
How we clone a running VM in 2 seconds
Go 1.25 Release Notes - The Go Programming Language
Nginx 1.22 Released With OpenSSL 3.0 Support - Phoronix
July 2022 (version 1.70)
IBM, Red Hat and Free Software: An old maddog’s view
April 2025 (version 1.100)
The Quest for Netflix on Asahi Linux | Blog
April 2023 (version 1.78)
January 2025 (version 1.97)
Deno raises $21M | Deno
The early days of Linux
March 2022 (version 1.66)
"�[31m"?! ANSI Terminal security in 2023 and finding 10 CVEs
Welcoming Linux to the 1Password Family | 1Password
So You Want To Build A Browser Engine
Little Snitch for Linux