0 issue "letsencrypt.org" 0 issuewild "letsencrypt.org" 0 iodef "mailto:yourmail@example.jp" §OS再インストール 初期設定で期待通りの設定ができていない場合は、OSの再インストールをする。 さくらVPSのコントロールパネルから、OSを再インストールするサーバを選ぶ。 www99999ui.vs.sakura.ne.jp §OSのインストール操作 Ubuntu 24.04 LTS を選ぶ。 OSインストール時のパケットフィルタ（ポート制限）を無効にして、ファイアウォールは手動で設定することにする。 初期ユーザのパスワードに使える文字が制限されているので、ここでは簡単なパスワードにしておき、後ですぐに複雑なパスワードに変更する。 公開鍵認証できるように公開鍵を登録しておく。 §秘密鍵と公開鍵の作成 ク
はじめに 対象イベント 読み方、使い方 Remote Code Execution(RCE) 親ディレクトリ指定によるopen_basedirのバイパス PHP-FPMのTCPソケット接続によるopen_basedirとdisable_functionsのバイパス JavaのRuntime.execでシェルを実行 Cross-Site Scripting(XSS) nginx環境でHTTPステータスコードが操作できる場合にCSPヘッダーを無効化 GoogleのClosureLibraryサニタイザーのXSS脆弱性 WebのProxy機能を介したService Workerの登録 括弧を使わないXSS /記号を使用せずに遷移先URLを指定 SOME(Same Origin Method Execution)を利用してdocument.writeを順次実行 SQL Injection MySQ
Why Is SQLite Coded In C
Note: Sections 2.0 and 3.0 of this article were added in response to comments on Hacker News and Reddit. Since its inception on 2000-05-29, SQLite has been implemented in generic C. C was and continues to be the best language for implementing a software library like SQLite. There are no plans to recode SQLite in any other programming language at this time. The reasons why C is the best language to
ソフトウェアテストの古典から現在まで
はじめに このたび、ソフトウェアテストとは、そもそもいったいなんなのかということを考え直す機会があったので、その時に読み直した書籍や資料についての備忘録を記録します。 ISTQBとJSTQB ISTQB は International Software Testing Qualifications Board の略で、ソフトウェアテスト分野の国際的な資格制度を運営する組織です。 現在のソフトウェアテストについて、どのような概念であるかについてを調べるには、ISTQBが提供している用語集や試験のシラパスを確認することで概要をつかめます。 ISTQBの用語集 Certified Tester Foundation Level (CTFL) v4.0の情報 ISTQBはさらに高度な試験や専門に特化した試験もあるので、必要に応じて参照してください。 また、JSTQB（Japan Software
REST API Design Best Practices Handbook – How to Build a REST API with JavaScript, Node.js, and Express.js
By Jean-Marc Möckel I've created and consumed many API's over the past few years. During that time, I've come across good and bad practices and have experienced nasty situations when consuming and building API's. But there also have been great moments. There are helpful articles online which present many best practices, but many of them lack some practicality in my opinion. Knowing the theory with
Spring Modulith でモジュラモノリスなアプリの構造を検証してみた - Taste of Tech Topics
アクロクエスト アドベントカレンダー 12月9日 の記事です。 普段は Java, Python でバックエンドの開発をしている大塚優斗です😃 最近は Spring フレームワークのメジャーアップデートなどで盛り上がっていますね！ 10月にこんな記事を見かけて、Spring Modulith がとても気になっていたので、手元で試したことを書いていきます✍️ Spring Modulith とは Spring Modulith でできること 0. Spring Modulith でのパッケージの扱いについて 1. モジュール構造の検証 循環参照の検知 別モジュールへのアクセス違反の検知 2. モジュールに閉じた結合テスト 単一のアプリケーションモジュールで結合テストができること Bootstrap モードによって、結合テスト時に他モジュールの Bean 生成ができること 3. イベントによ
プロと読み解くRuby 4.0 NEWS テクノロジー部門技術推進グループの笹田（ko1）と遠藤（mame）です。Ruby (MRI: Matz Ruby Implementation、いわゆる ruby コマンド) の開発をしています。お金をもらって Ruby を開発しているのでプロの Ruby コミッタです。 本日 12/25 に、恒例のクリスマスリリースとして、Ruby 4.0.0 がリリースされました（Ruby 4.0.0 リリース | Ruby）。今年も STORES Product Blog にて Ruby 4.0 の NEWS.md ファイルの解説をします（ちなみに、STORES Advent Calendar 2025 の記事になります。他も読んでね）。NEWS ファイルとは何か、は以前の記事を見てください。 プロと読み解く Ruby 2.6 NEWS ファイル - クック
How modern browsers work
Note: For those eager to dive deep into how browsers work, an excellent resource is Browser Engineering by Pavel Panchekha and Chris Harrelson (available at browser.engineering). Please do check it out. This article is an overview of how browsers work. Web developers often treat the browser as a black box that magically transforms HTML, CSS, and JavaScript into interactive web applications. In tru
Lessons from Writing a Compiler
The prototypical compilers textbook is: 600 pages on parsing theory. Three pages of type-checking a first-order type system like C. Zero pages on storing and checking the correctness of declarations (the “symbol table”). Zero pages on the compilation model, and efficiently implementing separate compilation. 450 pages on optimization and code generation. The standard academic literature is most use
Wasmtime Reaches 1.0: Fast, Safe and Production Ready!
As of today, the Wasmtime WebAssembly runtime is now at 1.0! This means that all of us in the Bytecode Alliance agree that it is fully ready to use in production. In truth, we could have called Wasmtime production-ready more than a year ago. But we didn’t want to release just any WebAssembly engine. We wanted to have a super fast and super safe WebAssembly engine. We wanted to feel really confiden
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
Programming is an iterative process. As much as we would like to come up with the perfect solution from the start, it rarely works that way. Good programs often begin as quick prototypes. While many experiments remain prototypes, the best programs can evolve into production code. Whether you’re writing games, CLI tools, or designing library APIs, prototyping helps tremendously in finding the best
缶つぶし機とソフトウェア移行技術 - Refactoring to Rust の読書感想文 - じゃあ、おうちで学べる
はじめに ——あるいは、「知っている」と「理解している」の間 Rustのことは、知っていた。学習もしていた。実務でも使っていた。 でも、それは知っているつもりだった。 知ってるつもり 無知の科学 (ハヤカワ文庫NF) 作者:スティーブン スローマン,フィリップ ファーンバック早川書房Amazon 日々Rustで開発し、BoxとRcとArcを使い分け、tokio::spawnでタスクを生成し、?演算子を当たり前のように書いている。FFI？PyO3使えばいいでしょ。WebAssembly？wasm-bindgenがあるじゃない。技術的には、確かに「使える」レベルにはあった。 でも、心のどこかで感じていた違和感があった。 オートバイのエンジンを分解できる人と、エンジンが動く原理を理解している人は違う。コードが動くことと、なぜそう書くべきかを理解することも違う。私は前者だった。メカニックではあった
June 5, 2023 by Dirk Bäumer VS Code for the Web (https://vscode.dev) has been available for some time now and it has always been our goal to support the full edit / compile / debug cycle in the browser. This is relatively easy for languages like JavaScript and TypeScript since browsers ship with a JavaScript execution engine. It is harder for other languages since we must be able to execute (and t
Today we’re excited to announce the release of TypeScript 5.2! If you’re not familiar with TypeScript, it’s a language that builds on top of JavaScript by making it possible to declare and describe types. Writing types in our code allows us to explain intent and have other tools check our code to catch mistakes like typos, issues with null and undefined, and more. Types also power TypeScript’s edi
Announcing Coinbase’s successful transition to React Native | by Coinbase | The Coinbase Blog
As of January 2021, the Coinbase iOS and Android apps have transitioned away from native development to React Native, and all mobile engineers are now collaborating in a single codebase. The transition from native to React Native did not happen overnight, and in the interest of helping those contemplating such a decision, we want to tell the story of how we got here. Specifically, we want to share
ZigCool
Why is Zig so Cool? by Nilo Stolte Foreword I can’t think of any other language in my 45 years long career that surprised more than Zig. I can easily say that Zig is not only a new programming language, but it’s a totally new way to write programs, in my opinion. To say it’s merely a language to replace C or C++, it’s a huge understatement. In this article, I will present the features that I found
The Unix shell is over 50 years old, but it still defines how programmers use their computers. We type a few words in a terminal, and milliseconds later an ephemeral factory comes online: the Unix pipeline. Data streams through a network of simple programs working concurrently, like robots on the factory floor, executing a computational choreography we composed seconds ago. Its job done, the facto
CUPID: for joyful coding
What started as lighthearted iconoclasm, poking at the bear of SOLID, has developed into something more concrete and tangible. If I do not think the SOLID principles are useful these days, then what would I replace them with? Can any set of principles hold for all software? What do we even mean by principles? I believe that there are properties or characteristics of software that make it a joy to
Golang Mini Reference 2022: A Quick Guide to the Modern Go Programming Language (REVIEW COPY)
Golang Mini Reference 2022 A Quick Guide to the Modern Go Programming Language (REVIEW COPY) Harry Yoon Version 0.9.0, 2022-08-24 REVIEW COPY This is review copy, not to be shared or distributed to others. Please forward any feedback or comments to the author. • feedback@codingbookspress.com The book is tentatively scheduled to be published on September 14th, 2022. We hope that when the release da
Today we’re excited to announce our Release Candidate of TypeScript 5.2! Between now and the stable release of TypeScript 5.2, we expect no further changes apart from critical bug fixes. To get started using the RC, you can get it through NuGet, or through npm with the following command: npm install -D typescript@rc Here’s a quick list of what’s new in TypeScript 5.2! using Declarations and Explic
しくじり先生のように学ぶ「NFS+sqliteで苦労した話から学ぶ、問題解決の考え方」という勉強会をやってみました | Raccoon Tech Blog [株式会社ラクーンホールディングス 技術戦略部ブログ]
株式会社ラクーンホールディングスのエンジニア/デザイナーから技術情報をはじめ、世の中のためになることや社内のことなどを発信してます。 インフラLinux勉強会SQLiteNFS こんにちは、羽山です。 今回は社内で実施した勉強会をほぼそのままブログ記事にしています。 ITエンジニアたるものドキュメントを残したり勉強会を実施したり分かりやすい設計にリファクタリングしたりなど、日々 知見の伝達 を意識していると思います。主要な知見はたいていそれらの方法で満たせるのですが、しかし残念ながら中には画一的な方法では伝えにくいものもあったりします。 ところで伝統芸能や工芸の世界では技術の継承において 背中を見て学ぶ という方法が用いられることがあるようです。 これと似た手法はITエンジニアの世界にもあって、先輩エンジニアとペアプログラミングをすることで文書では伝わりにくい技術や考え方・テクニックを学ぶ
![しくじり先生のように学ぶ「NFS+sqliteで苦労した話から学ぶ、問題解決の考え方」という勉強会をやってみました | Raccoon Tech Blog [株式会社ラクーンホールディングス 技術戦略部ブログ]](https://cdn-ak-scissors.b.st-hatena.com/image/square/adda0d926166e07709f641e0594d39801c8333d9/backend=imagemagick;height=288;version=1;width=512/https%3A%2F%2Ftechblog.raccoon.ne.jp%2Fwp-content%2Fuploads%2F2021%2F10%2Fscience_hakase_shippai_s.png)
Announcing Dart 3
Hello from Google I/O 2023. Today, live from Mountain View, we’re announcing Dart 3 — the largest Dart release to date! Dart 3 contains three major advancements. First, we’ve completed the journey to 100% sound null safety. Second, we’ve added major new language features for records, patterns, and class modifiers. Third, we’re giving a preview of the future, where we broaden our platform support w
Was Rust Worth It?
A few years ago, I dropped everything to focus 100% on WebAssembly. At the time, Rust had the best support for compiling into WebAssembly, and the most full-featured WebAssembly runtimes were Rust-based. Rust was the best option on the menu. I jumped in, eager to see what all the hype was about. Since then, I (along with some other awesome people) built Wick, an application framework and runtime t
Improving Rails scalability using the modular monolith approach with enforced boundaries
I did a talk at LRUG (London Ruby User Group) on this! If you like this post, or prefer video based content, you can check it out here. Ruby & Rails have a reputation for not scaling well — you’ve probably heard this already. TLDR for this postThere’s 3 things I’m going to talk about that have been used to improve the scalability of a Rails application. 1. Make the Rails application modular 2. Cre
Show navigation A recent article on WebAssembly Garbage Collection (WasmGC) explains at a high level how the Garbage Collection (GC) proposal aims to better support GC languages in Wasm, which is very important given their popularity. In this article, we will get into the technical details of how GC languages such as Java, Kotlin, Dart, Python, and C# can be ported to Wasm. There are in fact two m
Effective TypeScript › The Saga of the Closure Compiler, and Why TypeScript Won
Here's something that makes me feel old: in just six months, Gmail will celebrate its 20th anniversary. If you weren't actively developing web sites at the time, it's hard to capture just how revolutionary it was. This was a time when JavaScript was held in almost universally low regard. The idea that you could build a sophisticated web app using it was mind-boggling. But it clearly worked and it
Python's "Type Hints" are a bit of a disappointment to me
blog - git - desktop - images - contact Python's "Type Hints" are a bit of a disappointment to me 2022-04-21 Preface You are reading version 2.0 of this blog post. I've incorporated some feedback I got into this revised version. Introduction Over the course of several Python 3.x versions, "type hints" were introduced. You can now annotate functions: def greeting(name: str) -> str: return 'Hello '
Over the course of my Spring 2020 semester at Harvey Mudd College, I developed a self-hosting compiler entirely from scratch. This article walks through many interesting parts of the project. It’s laid out so you can just read from beginning to end, but if you’re more interested in a particular topic, feel free to jump there. Or, take a look at the project on GitHub. Table of contents What the pro
みなさんこんにちは、電通国際情報サービス（ISID）コーポレート本部 システム推進部の佐藤太一です。 本日は最新のGradle（2022/08現在）を使いこなしながらKotlinでJavaのアプリケーションをビルドするスクリプトを書く際に、知っておくと便利なノウハウをまとめてご紹介します。 はじめに 記事の執筆環境 scoopのセットアップ Javaのセットアップ Gradleのセットアップ サンプルアプリケーションについて ルートプロジェクトの実装 ウェブアプリケーションプロジェクトの実装 ビルドスクリプトの作成 サンプルアプリケーションの実装 バージョニング その他のバージョニングプラグイン バッチプロジェクトの実装 バッチアプリケーションの実装 Fat/Uber Jarの作り方 ビルドにおける共通処理の切り出し ローカルプラグインの作り方 ローカルプラグインの実装 ローカルプラグイン
Since I was unable to travel for a couple of years during the pandemic, I decided to take my new-found time and really lean into Rust. After writing over 100k lines of Rust code, I think I am starting to get a feel for the language and like every cranky engineer I have developed opinions and because this is the Internet I’m going to share them. The reason I learned Rust was to flesh out parts of t
Wasm core dumps and debugging Rust in Cloudflare Workers
Wasm core dumps and debugging Rust in Cloudflare Workers2023-08-14 A clear sign of maturing for any new programming language or environment is how easy and efficient debugging them is. Programming, like any other complex task, involves various challenges and potential pitfalls. Logic errors, off-by-ones, null pointer dereferences, and memory leaks are some examples of things that can make software
How to improve Python packaging, or why fourteen tools are at least tw
There is an area of Python that many developers have problems with. This is an area that has seen many different solutions pop up over the years, with many different opinions, wars, and attempts to solve it. Many have complained about the packaging ecosystem and tools making their lives harder. Many beginners are confused about virtual environments. But does it have to be this way? Are the current
The Go Blog Results from the 2025 Go Developer Survey Todd Kulesza, on behalf of the Go team 21 January 2026 Hello! In this article we’ll discuss the results of the 2025 Go Developer Survey, conducted during September 2025. Thank you to the 5,379 Go developers who responded to our survey invitation this year. Your feedback helps both the Go team at Google and the wider Go community understand the
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
A new JavaScript backend was merged into GHC on November 30th, 2022! This means that the next release of GHC will be able to emit code that runs in web browsers without requiring any extra tools, enabling Haskell for both front-end and back-end web applications. In this post, we, the GHC DevX team at IOG, describe the challenges we faced bringing GHCJS to GHC, how we overcame those challenges, and
本連載は、iOS/Android向けのアプリでUIの表現力を高めることを目標に、Unity製アプリにFlutterを導入した例を具体的な実装方法を交えながら紹介する記事の4回目となります。 前回の記事ではUnityからExportしたXcodeプロジェクトに対してFlutterを組み込む方法を解説しました。4回目となる今回は実際にFlutterとUnityで連携を行う方法を紹介します。 前回までの記事で、UnityからExportされたAndroid/iOSプロジェクトにFlutterを組み込みビルドする方法を紹介していますのでまだ見ていない方はまずそちらをご覧ください。 Unity製のAndroidアプリにFlutterを組み込む Unity製のiOSアプリにFlutterを組み込む FlutterとUnityの連携概要 2回目の記事でも少し触れたのですが、アプリ内にFlutterEng
Two Years of Rust
I recently wrapped up a job where I spent the last two years writing the backend of a B2B SaaS product in Rust, so now is the ideal time to reflect on the experience and write about it. Contents Learning The Good Performance Tooling Type Safety Error Handling The Borrow Checker Async Refactoring Hiring Affect The Bad The Module System Build Performance Mocking Expressive Power Learning I didn’t le
The Go Programming Language and Environment – Communications of the ACM
Go is a programming language created at Google in late 2007 and released as open source in November 2009. Since then, it has operated as a public project, with contributions from thousands of individuals and dozens of companies. Go has become a popular language for building cloud infrastructure: Docker, a Linux container manager, and Kubernetes, a container deployment system, are core cloud techno
agent loop ���� �G�� You are Manus, an AI agent created by the Manus team. You excel at the following tasks: 1. Information gathering, fact-checking, and documentation 2. Data processing, analysis, and visualization 3. Writing multi-chapter articles and in-depth research reports 4. Creating websites, applications, and tools 5. Using programming to solve various problems beyond development 6. Vario
j次のブックマーク
k前のブックマーク
lあとで読む
eコメント一覧を開く
oページを開く
Ubuntu 24.04 LTS サーバ構築手順書
【2020年】CTF Web問題の攻撃手法まとめ - こんとろーるしーこんとろーるぶい
プロと読み解くRuby 4.0 NEWS - STORES Product Blog
Claude Mythos Preview \ red.anthropic.com
Prototyping in Rust | corrode Rust Consulting
Run WebAssemblies in VS Code for the Web
Announcing TypeScript 5.2 - TypeScript
A Shell for the Container Age: Introducing Dagger Shell | Dagger
Announcing TypeScript 5.2 RC - TypeScript
A new way to bring garbage collected programming languages efficiently to WebAssembly · V8
Kalyn: a self-hosting compiler for x86-64
KotlinとGradleで始めるモダンなビルド環境 - 電通総研 テックブログ
Rust: A Critical Retrospective « bunnie's blog
Results from the 2025 Go Developer Survey - The Go Programming Language
April 2023 (version 1.78)
JavaScript backend merged into GHC | IOG Engineering
FlutterとUnityを連携させる | gihyo.jp
Manus tools and prompts