Every blog post that took off on Hacker News, ranked by the votes of its best submission. 49,242 posts.
Introducing Mempodipper , an exploit for CVE-2012-0056. /proc/ pid /mem is an interface for reading and writing, directly, process memory by seeking around with the same addresses as the process's virtual memory space. In 2.6.39, the protections against unauthorized access to /proc/ pid /mem were deemed sufficient…
I've been trying to invest more and more of my free time interacting with founders. I genuinely feel we've been through a lot with Sentry and I can provide some useful value to others. More so, I believe most people in this industry, most successful people, do others a disservice but not having honest conversations…
UPDATE : This post has been featured in the Hacker News front page! Thanks! I have also updated this post with additional information (at t...
Short version: the full text of my Introduction to the Theory of Programming Languages book (second printing, 1991) is now available. This page has more details including the table of chapters, and a link to the PDF (3.3MB, 448 + xvi pages). The book is a survey of methods for language description, particularly…
Floodgap has had a T1 line since I moved into this house in 2011. I'm one of those weirdos who runs my own hardware and prefers to avoid ...
When I first started writing for a real publication, I taught myself “reporting” with a simple self-made curriculum unfolding over six or seven articles. The first two pieces I wrote from my head, with reference to things I already knew or to books I’d read. For the third, I actually got out of the house, but didn’t…
This post follows up on OCaml for Haskellers from Edward Z. Yang (2010) and my own Haskell for OCaml programmers from earlier this year. Note The latest version of this document can be found online at https://dr-knz.net/rust-for-functional-programmers.html. Alternate formats: Source, PDF. Prologue Rust for C…
Today I want to show you a watch modification that I've been working on. I'm calling it the Data Runner, and it's another F91W mod, this time going the extra mile to make something functional and nice looking.
Over 15 years ago, I took my first device-free, silent, solitude experience.
ramblings by Adam Perry
An introduction to using SIMD with Zig
I’m not really one to brag publicly about expensive toys, but a few weeks ago I managed to get one that’s really something special. It is a Curta Type II , a mechanical digital 1 calculator manufactured in Liechtenstein between the 50s and 70s, before solid-state calculators killed them and the likes of slide-rules.
An impressive poster summarizing biochemical pathways reminds us how complex life is, and how interconnected the world is.
The latest news about Opera web browsers, tech trends, internet tips.
I wanted to write a post and do a bit of a deepdive into ICMP, ping and traceroute. I’ve found that having a good networking foundation has been a tremendous…
How I accidentally breached a nonexistent database and found every private key in a 'state-of-the-art' encrypted messenger called Converso.
Ed25519 signature validation criteria vary widely between implementations, creating risks for consensus systems. Here's why and how to fix it.
If you don’t follow NSA news obsessively, you might have missed yesterday’s massive Snowden document dump from Der Spiegel. The documents provide a great deal of insight into how the NSA brea…
When I am in a foul mood, I have a surefire way to improve my outlook – I build something. A foul mood is a stubborn beast and it does not give ground easily. I
Since seeing the city generation from the shelved Introversion Software game “Subversion” in action , I’ve wanted to to try writing a basic procedural city generator myself. The developers followed a method described in Parish and Müller’s paper: Procedural Modelling of Cities (2001) . The paper is well-written and…
Thank you to David Peter for your hard work making the world a better place through open source.
"Emails show [Chris Cristie]'s aides did plan bridge gridlock," says Salon . To a transportation engineer, the aides are innocent: bridges can't have gridlock. While we often say "gridlock" to mean "bad traffic," it has a technical meaning.
Last night the British Prime Minister Gordon Brown issued a long statement about my Alan Turing petition that included a clear apology for...
