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Is HTTP Public Key Pinning Dead?
HTTP Public Key Pinning (HPKP, RFC 7469)—a standard that was intended to bring public key pinning to the masses—might be dead.
New
The latest blog posts to take off on Hacker News. 3,021 posts.
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Running a Tor Exit Node for Fun and E-mails
The Tor Project is a non-profit organization in the United States that created Tor, The Onion Router, a free software that creates an open network of volunteers which helps people anonymize their traffic by routing it through three or more other computers before it reaches its final destination.
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Advanced Deanonymization Attacks
News posted by Whonix staff. The Whonix Blog. Stay Tuned. (rss)
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Multi-byte NOP opcode made official
Welcome to the Developer Software Tools forum! Your collaborative hub to connect with fellow engineers, optimize code with Intel oneAPI and OpenVINO, share debugging breakthroughs, and extract maximum software performance.
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Taking Over DigitalOcean Domains via a Lax Domain Import System
A Hacker's Blog of Unintended Use and Insomnia.
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455 Tb of live streaming were transferred during the Olympic Games Rio 2016
TL;DR Motivated by a friend, we’ll share bits of our experience during the Olympic Games Rio 2016. Before starting, I would like to clarify that Globo.com only had rights for streaming the content …
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gRPC: Internet-scale RPC framework is now 1.0
Building highly scalable, loosely coupled systems has always been tough. With the proliferation of mobile and IoT devices, burgeoning data volumes and increasing customer expectations, it's critical to be able to develop and run systems efficiently and reliably at internet scale.
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The Ethernet PAUSE frame
This is a bizarre one. It all started when the internet seemed to go out at my house. My desktop, phone, TV, everything stopped working. The usual solution at a time like this is to power cycle the modem and router. While this fixed the situation temporarily, soon after the problem returned. What made me think this…
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Major Mobile US Networks Pass 50% IPv6 Threshold for IPv6-Enabled Hosts
In our year-end blogpost in December of 2015 we highlighted the enormous progress that IPv6 deployment had made in 2015 by obtaining aggregated data from our sources for the four major US mobile providers:
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The Cuban CDN
On a recent trip to Cuba I brought with me a smartphone and hoped to get Internet access either via WiFi or 3G. I managed that (at a price) but also saw for myself how Cubans get access to an alternate Internet delivered by sneakernet.
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Cisco Adaptive Security Appliance SNMP Remote Code Execution Vulnerability
A vulnerability in the Simple Network Management Protocol (SNMP) code of Cisco Adaptive Security Appliance (ASA) Software could allow an authenticated, remote attacker to cause a reload of the affected system or to remotely execute code. The vulnerability is due to a buffer overflow in the affected code area. The…
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Why don’t podcasts use VBR MP3s? Because iOS and macOS don’t accurately seek them
AVFoundation, the low-level audio/video framework in iOS and macOS, does not accurately seek within VBR MP3s, making VBR impractical to use for long files such as podcasts. Jumping to a timestamp in an hour-long VBR podcast can result in an error of over a minute, without the listener even knowing because the…
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Automatically closing FIN_WAIT_2 is a violation of the TCP specification
I was asked to debug another weird issue on our network. Apparently every now and then a connection going through CloudFlare would time out with 522 HTTP error.
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IPv6 Support for Amazon S3
Update October 1, 2021 – This post has been edited to remove outdated S3 buckets. As you probably know, every server and device that is connected to the Internet must have a unique IP address. Way back in 1981, RFC 791 (“Internet Protocol”) defined an IP address as a 32-bit entity, with three distinct network […]
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AWS Application Load Balancer
We launched Elastic Load Balancing (ELB) for AWS in the spring of 2009 (see New Features for Amazon EC2: Elastic Load Balancing, Auto Scaling, and Amazon CloudWatch to see just how far AWS has come since then). Elastic Load Balancing has become a key architectural component for many AWS-powered applications. In…
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Why I Live in IRC (2015)
I have lived in IRC for about 7 years. What I mean by this is that IRC has been my primary hub for reading information online and interacting with people and systems. I don't use an RSS reader, I visit Twitter and Facebook only ...
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Google’s QUIC protocol: moving the web from TCP to UDP
QUIC replaces TCP with UDP for faster connections, eliminating head-of-line blocking and reducing latency. Learn how it works and why it matters.
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Curl and http/2 on Mac
$ 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 ……
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The Golden Age of Open Protocols
Protocols are a geeky topic. It’s way more interesting to talk about applications. People will go on and on about why they like gmail or some other email application. But not a lot of people get excited about SMTP and IMAP which are the underlying email protocols that allow the gmail application to talk to […]
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Building a software-defined radio from scratch
The FreeSRP is an affordable software-defined radio (SDR) I decided to design because there were no existing options that filled the gap between the $300 and relatively narrow bandwidth and low resolution HackRF and the better performing USRP s you can get for about $700. Of course it will be fully open source, but…