Bookmarks (3936)

aes-finder Utility to find AES keys in running process memory. Works for 128, 192 and 256-bit keys. Detail on how it works

mypaas a tool that makes it easy to run a platform as a service (PaaS) on your own VM or hardware. It combines Traefik and Docker, offers free automatic https, secure deployments via dockerfiles, and analytics

whispers a static code analysis tool designed for parsing various common data formats in search of hardcoded credentials and dangerous functions. Whispers can run in the CLI or you can integrate it in your CI/CD pipeline.

polaris keeps your k8s clusters sailing smoothly. It runs a variety of checks to ensure that Kubernetes pods and controllers are configured using best practices, helping you avoid problems in the future

octo-cli makes the data available from any database as a serverless web service, simplifying the process of building data-driven applications.

Mutation Testing - Who will test the tests themselves? We know the feeling when we have a bug in production which is supposed to be caught by tests. So how to prevent that? What to test the test?

Did You Know Fonts Could Do All This? Let’s play with lesser known toggles available to us when it comes to font rendering and see what they do, let’s have fun and explore possibilities

How Gitlab upgraded PostgreSQL Gitlab is very good at sharing their infrastructure setup. In this article, they explain the precise maintenance process to execute a major version upgrade of PostgreSQL.

How to Get the Best Out of PostgreSQL Logs PostgreSQL comes with many parameters for fine-tuning. Logging parameters are huge too. We will cover some fundamental practices to get the best out of PostgreSQL logs.

Whom should you show your work to? Tesla was ahead of his time, but fail to show the potential of his works to the right audience. As a developer, we usually want to build side projects or has a cool idea about how thing work but we cannot bring it to the next level. not gain traction, not enough funding. I know this feeling, I like my personal ec2 price check project but I don’t know how to bring more traffic to it.

Code Health: Make Interfaces Hard to Misuse Don’t push the responsibility of maintaining invariants required by your class on to its callers.

How do you reason about a probabilistic distributed system? You cannot model probability with nondeterminism, and you cannot model nondeterminism with probability.

Explainer: L1 vs. L2 vs. L3 Cache If you go shopping for CPU or read CPU benchmark/optimization you will see mention about L1/L2 cache and usually they are just a few MBs. So what are they and why they are helpful with mere MBs.

everything you ever wanted to know about terminals So here’s a short tutorial on ansi escape codes and terminal control, because you philistines won’t stop using ncurses and oh my god WHY ARE WE STILL USING NCURSES IT IS THE TWENTY FIRST CENTURY

Seamlessly Swapping the API backend of the Netflix Android app How we migrated our Android endpoints out of a monolith into a new microservice.

How Do Computers Generate Random Numbers? Computers use random numbers for everything from cryptography to gambling, generative algorithms, video games, and more. However, computers are inherently incapable of being random. Instead, programmers rely on pseudorandom number generators (PRNGs). These are simply a category of algorithms that programmatically generate new random numbers from a given starting value called the seed.

cozy a modern audiobook player for Linux using GTK. You will see how we built desktop app with Python

tweakpane a compact pane library for fine-tuning parameters and monitoring value changes. It’s originally inspired by the popular library dat.GUI.

httpx a fast and multi-purpose HTTP toolkit allow to run multiple probers using retryablehttp library, it is designed to maintain the result reliability with increased threads

The Life of a Data Byte: Be kind and rewind A byte of data has been stored in a number of different ways through the years as newer, better, and faster storage media are introduced. A byte is a unit of digital information that most commonly refers to eight bits. A bit is a unit of information that can be expressed as 0 or 1, representing a logical state. Let’s take a brief walk down memory lane to learn about the origins of bits and bytes.

Things I Learnt from a Senior Software Engineer Neil worked at Bloomberg for a year, sat next to a senior software engineer for a year. Here’s what he learned. Many topics: naming, dealing with legacy code , when thing goes wrong and more.

AWS Tagging Best Practices Guide On AWS, tagging is a way to categorize resources for many reasons: billing analysis, grant permission. Examples of tag usages: this user can only access resources with this tag, or automated backup EBS volume with this tag. AWS is massive and if we don’t tag, we will very quickly end up with a big mess.

Hard to discover tips and apps for making macOS pleasant Tristan shared a whole bunch of tips and recommendations they’ve learned about over many years, but often quite hard to find out about. Some hidden tips, some good mac apps to improve productivity.

Inside a CODE RED: Network Edition Basecamp, the maker of Ruby On Rails, suffered a few major outages this month and share the post mortem. I always love these posts because why we can learn from success, learning from failure is even more important because not many share their failure :-). An interesting part is that the chatops server that can be used to reconfigure the network is down/slow due to network being overload and they have to manually reconfigure the routers.

Unicode support. What does that actually mean What is the uppercase of あ, a Japanese character? why ſecret == secret == Secret? When you upper-case groß you can get either GROß or GROSS? What is that mess? Let’s dig into the Unicode encoding world

To design and develop an interactive globe I always curious how those 3d interactive models are built-in JavaScript. This article by a Stripe engineer just answers that. We will learn how to draw the surface with dot, group the country, animate it and make it fast via GPU WebGL. Short article but I learn a lot.

What Shell Am I Using? Finding the shell you’re actually using isn’t all that simple at first. You can find the location of the executable of the shell. You can find all the processes currently running with that shell name. But gathering information about the shell you’re typing all those commands in to find the shell you’re using requires a little more poking around. The two easiest solutions, on macOS at least, are lsof and fuser

The UNIX `who` command In order to see what the who command is doing I could try to find the source code and dig into it. But I found it fun to use strace to check what the process was doing instead. Since we are expecting who to read system files, we can only focus on the open syscalls.

How to build a Handwriting Reader from scratch with Deep Learning When I makes mobile check deposit and the bank mobile app detects the amount reliably, I’m amazed at that technology. That’s good use of tech to improve our life. In this article we will be learning about the task of handwritten text recognition, it’s intricacies and how we can solve it using deep learning techniques.

Print.js A tiny javascript library to help printing from the web. It can prints PDF just any HTML element and also generate preview.

talk A free group video call app with screen sharing. It is built using WebRTC, so all your video chat is peer-to-peer. Group video call is achieved using WebRTC mesh

howdy provides Windows Hello™ style authentication for Linux. Use your built-in IR emitters and camera in combination with facial recognition to prove who you are.

puffing-billy A rewriting web proxy for testing interactions between your browser and external sites. Works with ruby + rspec. Puffing Billy is like webmock or VCR, but for your browser.

liblg a reasonably fast, minimal stack-based VM in C. It currently implements just enough functionality to do recursive Fibonacci

sd an intuitive find & replace CLI. Kind of like sed but uses regex syntax that you already know from JavaScript and Python

WebRTC for the Curious This book was created by WebRTC implementers to share their hard-earned knowledge with the world. WebRTC for the curious is an Open Source book written for those that are always looking for more. This book doesn’t settle for abstraction.

maddy an email server support send and receive message via SMTP, IMAP. It aims to replaces Postfix, Dovecot, OpenDKIM, OpenSPF, OpenDMARC and more with one daemon with uniform configuration and minimal maintenance cost.

ts-migrate a tool for helping migrate code to TypeScript. It takes a JavaScript, or a partial TypeScript, project in and gives a compiling TypeScript project out.

asciimatics A cross platform package to do curses-like operations, plus higher level APIs and widgets to create text UIs and ASCII art animations

Hands-on WebAssembly: Try the basics Get started with WebAssembly through a simple hands-on tutorial that assumes only general knowledge in web development. The only tools you’ll need to get a taste of Wasm through runnable code examples are a code editor, any modern browser, and a Docker container with toolchains for C and Rust that comes with the article.

The log/event processing pipeline you can't have Thoughts on design/implementation of a log pipeline system which aims to be simple and cheap. To quote the author: You can probably find, somewhere, something similar to each of the components I’m going to talk about, but you probably can’t find a single solution that combines it all with good performance and super-low latency for a reasonable price.