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BPF, XDP, Packet Filters and UDP
Documentation and guides from the team at Fly.io.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 1,406 posts.
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IRCv3
IRCv3 is a working group of client/server software authors and network operators from the community, set up to advance the IRC protocol.
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How Tutanota replaced Google’s FCM with their own notification system
As mentioned in This Week In F-Droid 17, Tutanota is now on F-Droid. In this special post Ivan from Tutanota, tells us the story. Hi, I’m Ivan and I am devel...
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EFF Review of Verizon and Google's Net Neutrality Proposal
Efforts to protect net neutrality that involve government regulation have always faced one fundamental obstacle: the substantial danger that the regulators will cause more harm than good for the Internet. The worst case scenario would be that, in allowing the FCC to regulate the Internet, we open...
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Using Web Bluetooth to Communicate with Bluetooth Devices
Let's experiment with controlling Bluetooth Low Energy devices from a web browser with this LED project and balenaCloud.
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TP240PhoneHome Reflection/Amplification DDoS Attack Vector
A new reflection/amplification distributed denial of service (DDoS) vector with a record-breaking potential amplification ratio of 4,294,967,296:1 has been abused by attackers in the wild to launch multiple high-impact DDoS attacks.
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Dino 0.3: Video calls and conferences – encrypted and peer-to-peer
A privacy-friendly messaging app for the desktop. It uses the XMPP protocol and provides a clean UI with modern features.
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Application Load Balancers enables gRPC workloads with end to end HTTP/2 support
Discover more about what's new at AWS with Application Load Balancers enables gRPC workloads with end to end HTTP/2 support
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When your IP traffic in AWS disappears into a black hole
When we’d spin up new machines, some would fail our health checks. There was no network traffic between these boxes and our database machines.. The ARP tables on the database boxes had cached, outdated MAC addresses from no-longer-living boxes.
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Faster MySQL with HTTP/3
In this article we explore how our HTTP/3 API compares to the latency of a traditional MySQL client.
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Happy 50th Birthday, Ethernet
Why has Ethernet endured as a ubiquitous data framing protocol over all these years?
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Tor Messenger Beta: Chat Over Tor, Easily
WARNING STARTS As of March 2018, Tor Messenger is no longer maintained and you should NOT use...
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IRCv3 Spec round-up
IRCv3 Development Community
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Enabling IPv6 support for GitHub Pages
GitHub Pages now supports IPv6 for all Pages hosted on *.github.io and custom domains. Documentation for enabling IPv6 with custom domains can be found here.
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Post-mortem and remediations for the Matrix.org security breach
Matrix, the open protocol for secure decentralised communications
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How We Made IPFS Content Publishing 10x Faster
How a statistical approach cut IPFS content publishing times by over one order of magnitude.
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The core Internet institutions abandon the US Government
In Montevideo, Uruguay this week, the Directors of all the major Internet organizations – ICANN, the Internet Engineering Task Force, the Internet Architecture Board, the World Wide Web Consortium, the Internet Society, all five of the regional Internet address registries – turned their back on the US government. With…
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When can two TCP sockets share a local address?
If I navigate to https://blog.cloudflare.com/, my browser will connect to a remote TCP address from the local IP address assigned to my machine, and a randomly chosen local TCP port. What happens if I then decide to head to another site?
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A Shark on the Network
DISCLAIMER: I do not condone monitoring network traffic with intent to spy or otherwise cause harm to people. My interest in the techniques described below is academic. I write in the hope that I can improve Internet security, or at least increase public awareness of vulnerabilities. If you are attempting to replicate…
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DKIM Demystified
DKIM is a way to secure your email, increasing deliverability and avoiding fraud. A 20i Senior Systems Administrator explains DKIM in depth.