Every blog post that took off on Hacker News, ranked by the votes of its best submission. 1,616 posts.
$ curl ‐‐http2 https://daniel.haxx.se/ curl: (1) Unsupported protocol curl on mac curl has been shipped by default on Mac OS X since many years - I actually couldn't even manage to figure out exactly how many. It is built and bundled with the operating system by Apple itself and on Apple's own terms and even ……
Yesterday, together with Holger 'zecke' Freyther, I co-presented at 33C3 about Dissectiong modern (3G/4G) cellular modems. This presentation covers some of our recent explorations into a specific type
One of my readers asked for my opinion about the provocative “It’s Time to Replace TCP in the Datacenter” article by prof. John Ousterhout. I started reading it, found too many things that didn’t make sense, and decided to ignore it as another attempt of a proverbial physicist solving hard problems in someone else’s…
Every end-to-end encrypted messenger ships a fingerprint UI. Almost nobody opens it. A note on what's actually missing.
Oh, boy has it been quiet here. I have used wayback machine to pull a bunch of older content into the repo so that it can be shared with you beautiful people. There was no real reason to do that except I get annoyed by broken links. Really annoyed. It seems every time I reach back into my bookmarks for something the…
The online attack service launched late last year by the same criminals who knocked Sony and Microsoft ’s gaming networks offline over the holidays is powered mostly by thousands of hacked home Internet routers, KrebsOnSecurity.com has discovered.
HAProxy can be controlled from the command line using its admin socket. This can be used to easily disable and enable a backend server on the cli.
tl;dr: I set up an open source Time Pi project to build a stratum 1 PTP and NTP timeserver using a Raspberry Pi. Time is important to modern society, and most of us have a clock on our wrist that's more accurate than at any time in human history. But highly precise time is important in many industries, especially…
Update: This article has been superseded by a new post which hopefully explains it more clearly: Spoofing TCP connections without sequence number prediction
Table of contents Introduction The situation today The competitors What is/will be available What the market offers Licensing of other media coding standards My views on the next steps of media coding standards A disclosure My forecast So, what will happen next? And now? Introduction My plan this week was to talk…
Today, we're releasing a new version of SSL Rating Guide as well as a new version of SSL Test to go with it. Because the...
A vulnerability in Broadcom’s proprietary WPS implementation enables unauthenticated attackers within WiFi range to leak memory and achieve unauthenticated remote code execution on millions of routers. This post covers its discovery through agentic vulnerability research, exploitation across eCos and Linux platforms…
An intuitive and ground-up introduction to I/Q signals. Learn the foundational concepts through clear geometric analogy perfect for beginners
As well as the collection and distribution of compromised keys , the pwnedkeys project also matches those pwned keys against issued SSL certificates. I’m excited to announce that, as of the beginning of 2024, all matched certificates are now being published on the Fediverse , thanks to the botsin.space Mastodon server.
WebDAV is a file access and transfer protocol created in the 90s. It has support for file locks, arbitrary key-value properties attached to folders, file mimetypes, and many other features that extend this standard. It also has powerful access control features.
blog about networking, cameras, old gear, and xmpp
**Russian ship loitering near undersea cables** Updated: Original article 9th Oct. 2016. The Russian Navy’s Project 22010 mini-sub host ship Yantar is known for loitering near undersea internet cables (known as Submarine communications Cables - SCC). It may have other special missions also…. Read More >….
I've been moving my home storage over to a UniFi UNAS Pro 8 as part of a larger ...
Some new proposed protocols will encrypt the transport layer headers. Encryption is good, so more encryption must be better, right? Unfortunately there's going to be a huge hidden cost that'll be paid by anyone troubleshooting networking problems.
I have finished my cruise now, which was mostly holiday, but also some work. I did some training for my mates (mainly in C coding) and we di...
When it was announced that the Nexus S would have a built-in NFC radio, I immediately started thinking about the potential of using cell phones with RFID public transit fare systems. The day the Gingerbread source code was released, I picked up a Nexus S and began working on a proof-of-concept application that can…
Did you know that if your site’s under ~12kb the first page will load significantly faster? Servers only send a few packets (typically 10) in the initial round-trip while TCP is warming up (referred to as TCP slow start). After sending the first set of packets, it needs to wait for the client to acknowledge it…
At the end of March 2019 I did a talk at the INEX’s (Ireland’s biggest internet exchange point) Annual General Meeting. I was supposed to record it, however in a brief panic due to HDMI not working on my laptop I forgot to start a recording of it. Since people found it interesting I figured I would turn it into a blog…
I still have my Nokia 5800 lying around. It runs Symbian. That platform is quite different from Android. For one thing the internal storage size is 81 MB - less than what your single android app takes up, even in RAM, and it works faster than modern smartphones - e.g. the SMS app opens instantaneously. Another…
