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The most popular blog posts about networking & internet on Hacker News. 3,019 posts.
Our old hosting provider was having network issues... again. There had been a network split around 3:20 AM, which had caused a few of our worker servers to become disconnected from the rest of our network. The background jobs on those workers kept trying to reach our other services until their timeout was reached, and…
$ 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.
Guest Post: Study finds more than 40 STARTTLS-related security flaws in many different software products, both client-side and server-side.
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.
We would like to give you an update on the Microsoft takedown and announce that ALL of the 23 domains that were seized are now back in our control.
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.
A thorough understanding of the internet’s physical makeup has only recently emerged, thanks to painstaking work by UW-Madison researchers and their collaborators.
A week ago we published a story about new amplification attacks using memcached protocol on UDP port 11211. A few things happened since then: Github announced it was a target of 1.3Tbps memcached attack. OVH and Arbor reported similar large attacks with the peak reported at 1.7Tbps.
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…
Tor is upgrading its relay encryption algorithm for improved security. In upcoming releases, Arti and Tor will both support a new encryption algorithm called Counter Galois Onion (CGO). CGO prevents attackers from tampering with encrypted traffic, adds forward secrecy, and brings Tor's encryption up to modern…
Update: This article has been superseded by a new post which hopefully explains it more clearly: Spoofing TCP connections without sequence number prediction
Guest Post: Analysing Apple Private Relay’s effects on the Internet and future measurement-based research.
Ericsson Newsroom features news, blogs and information related to 5G and next-gen technology leadership.
Researchers have developed a ‘negative luminescence’ system to create an innovative way of sending hidden information.
A public and free DNS service for a better security and privacy
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…
