4411
Kernel Pwning with eBPF: A Love Story
How are low-level vulnerabilities exploited and detected in the modern age? This expert guide walks you through the ins and outs of eBPF and Kernel security.
4412
Graphics Pipelines for Young Bloods
A blog about game engines, graphics, C++, and more.
4413
Command Path Security in Go
How to decide if your programs are vulnerable to PATH problems, and what to do about it.
4414
Tracing SSL/TLS connections using eBPF
Pixie Blog
4415
4416
Facebook Political Problems
Facebook’s political problems stem directly from its size and drive for growth; they are societal issues, not antitrust ones.
4417
How a Jenkins Job Broke our Jenkins UI
Artwork courtesy of the Jenkins project. At Slack we manage a sophisticated Jenkins infrastructure to continuously build and test our mobile apps before release. We have hundreds of jobs running in a variety of different environments. One day something very odd happened — our Jenkins UI stopped working although the…
4418
The world needs a software bill of materials
“Sunburst” was the most sophisticated hack the world has ever seen. One of the most urgent lessons so far learned from the attack: we need…
4419
The case against crisis-mongering
We face problems. As have all societies ever.
4420
SQLite Is Dynamically Typed (2020)
A small, cool fact about SQLite is that its columns are flexibly typed. You can store any value in any column! Try it out: sqlite> create table t1 (v1 int, v2 varchar(10)); sqlite> insert into t1 values ("abc", "this string is longer than 10 characters!"); sqlite> select * from t1; abc|this string is longer than 10…
4421
C# 10 new feature CallerArgumentExpression
The CallerArgumentExpression has been discussed for years, it was supposed to a part of C# 8.0 but got delayed. Finally this month it is delivered along with C# 10 and .NET 6. …
4422
On UML
A little context: I got introduced to UML in around 2008, at an employer who had a site licence for Enterprise Architect. I was sent on a training course run by a company that no longer exists called Sun Microsystems: every day for a week I would get on a coach to Marble Arch, then...
4423
Problems with math rendering on the web (2020)
Since I first started working on my website at age fourteen, the site has gone through many revisions, and hopefully changed for the better. This blog was originally dynamically served using a Python/Flask backend, having a custom login system and post “editor” (just an input box). One of the more strange things about…
4424
Python vs Common Lisp, workflow and ecosystem (2019)
I learned Java and C at school, I learned Python by myself and it was a relief. After 8 years working and doing side projects in Python and JavaScript (mostly web dev, Django/Flask/AngularJS/Vuejs), I am not satisfied anymore by the overall experience so I’m making Common Lisp my language of choice.I am not here…
4425
Fix Terminals
I want terminal keypresses to Just Work. What do I mean Just Work? I mean programs in a simple orthogonal way, can determine the key that was pressed, and this model should easily map to the user's expectation.
4426
4427
Load testing is hard and the tools are not great
If you're building an application that needs to scale—and we all tell ourselves that we are—then at some point you have to figure out if it does or not. This is where load testing comes in: if you want to see whether or not your application can handle scale, just generate scale and see if it can handle it! It sounds…
4428
Unit testing a TCP stack (2015)
Thoughts on how to write automated tests for a TCP implementation.
4429
Zerotier – multiple vulnerabilities lead to private network access
Zerotier - Multiple vulnerabilities leading to identity hijacking and unauthorised private network access.
4430
C Programming on System 6 – Implementing Multi-User Chat
Your browser doesn't seem to support HTML video. You can download the video (H.264/AAC format) instead.
4431
Teaching Machiavelli through his letters
Hello! It’s been a while since I posted since, as usual, many projects press, so it’s rare for me to have the time to write the kinds of polished essays I like sharing here. But I’ve been hoping to share more things, since a lot of the history work I’ve been doing lately has helped me with reflecting on current…
4432
The right way to turn off your old APIs
All things come to an end, even HTTP APIs. However great your API may be today, one day you'll want to release a completely new version, an improved but...
4433
Latency Sneaks Up on You
As systems get big, people very reasonably start investing more in increasing efficiency and decreasing costs. That’s a good thing, for the business, for the environment, and often for the customer. Much of the time efficient systems have lower and more predictable latencies, and everybody enjoys lower and more…
4434
How to Write a Computer Emulator
I wrote this document after receiving large amounts of email from people who would like to write an emulator of one or another computer but do not know where to start. Any opinions and advices contained in the following text are mine alone and should not be taken for an absolute truth. The document mainly covers…
4435
A look at LLVM: comparing clamp implementations
Please note that this is not an endorsement or criticism of either of these languages. It’s simply something I found interesting with how LLVM handles code generation between the two. This is an implementation quirk, not a language issue. Update (April 9, 2021): A bug report was filed and a fix was pushed! The LLVM…
4436
Donut.c Without a Math Library
My little donut.c has been making the rounds again, after being featured in a couple YouTube videos (e.g., Lex Fridman and Joma Tech ). If I had known how much attention this code would get over the years, I would have spent more time on it.
4437
Writing, technically
Listen in on Jane Street’s Ron Minsky as he has conversations with engineers working on everything from clock synchronization to reliable multicast, build systems to reconfigurable hardware. Get a peek at how Jane Street approaches problems, and how those ideas relate to tech more broadly.
4438
NEC’s Forgotten FPUs
NEC had a cross license agreement with Intel dating back to April of 1976 that allowed each company to make/sell products based on each others patents. This was particularly important in the 1970’s as having a viable ‘second source’ for your designs was considered critical for it to be viable in the market. This was…
4439
Leaving No Pixel Behind: Three Years in Xenia's GPU Emulation
xenia is a BSD licensed open source research project for emulating Xbox 360 games on modern PCs.
4440
Docker is updating and extending our product subscriptions
Docker announces significant upgrades to its subscription plans, delivering more value, flexibility, and tools for customers of all sizes.