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Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 3,021 posts.
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HTTP/2 Rapid Reset: deconstructing the record-breaking attack
This post dives into the details of the HTTP/2 protocol, the feature that attackers exploited to generate the massive Rapid Reset attacks
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An interactive tour of the spanning tree protocol
Root election, port roles, proposals and agreements, topology changes: explore RSTP through simulations powered by MSTPD compiled to WebAssembly.
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The Federated App Problem
Federated applications have a few problems. And I really wish it weren’t the case, I love the idea and philosophy of these applications. But I can’t see them being mass adopted.
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We have lift-off Element X, Call and Server Suite are ready
Element is launching the world’s first communications platform based on the upcoming Matrix 2.0 release. The result is blazing performance which outperforms the mainstream alternatives...
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TOFU: Do You Check?
Let’s say you’re on a fresh machine. Maybe you’ve just started a new job or you’ve wiped your machine. You’re about to push some code you’ve written and you get this: $ git push The authenticity of host 'github.com (140.82.121.4)' can't be established. ED25519 key fingerprint is…
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Simplicity of IRC (2022)
During discussions with my friends and colleagues, whenever the topic of chat protocols comes up, I often remark how simple the Internet Relay Chat (IRC) protocol is and how this simplicity has fostered creativity in the lives of many young computer hobbyists growing up in the late 1990s and early 2000s. For many of…
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As Deadly as a DDoS: ICANN Unleashes the Whois Accuracy Program
More effective than a botnet, more sweeping than a Denial-of-Service attack, ICANN has devised a deadly Weapon of Mass Destruction that can instantly render a entire online presence persona-non-grata regardless of how much redundancy, mitigation muscle-power or firewalls a hapless defender has deployed, this latest…
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The Big DNS Privacy Debate at FOSDEM
This weekend at the excellent FOSDEM gathering there were no less than three presentations on DNS over HTTPs.
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Starcraft Network
I’ll cut right to the chase: my network naming convention is spectacular. I highly suggest emulating it.
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How both TCP and Ethernet checksums fail (2015)
At Twitter, a team had a unusual failure where corrupt data ended up in memcache. The root cause appears to have been a switch that was corrupting packets. Most packets were being dropped and the throughput was much lower than normal, but some were still making it through. The hypothesis is that occasionally the…
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Disabling Matrix Portalling
Portalled channels will be going away on 2023-07-31. Details below.
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Bitsquatting: DNS Hijacking without exploitation
Researchers have exploited bit-errors before in amazing ways . But bit-errors can be detected and exploited in new ways on an Internet-wide scale. One of these means is by bitsquatting, or registering domain names one bit different than frequently resolved domains.
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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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Vanished from Google/Bing/LinkedIn: a rebuttal of an anti-net neutrality paper
What if something can't be found through Google Search? Does it still exist? That question I have to ask myself when I found that a blogpost...
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A tale of a DNS exploit: CVE-2015-7547
A buffer overflow error in GNU libc DNS stub resolver code was announced last week as CVE-2015-7547. While it doesn't have any nickname yet (last year's Ghost was more catchy), it is potentially disastrous.
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10Gbit/s full TX wirespeed smallest packet size on a single CPU core
The Linux Kernel Network Stack Scalability, mitigating DDoS attacks firewalling iptables netfilter connection tracking (conntrack)
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Why is Netflix Buffering? Dispelling the Congestion Myth
Call the rural call completion (RLEC) hotline toll free or send us an email if you suspect rural call completion issues on the Verizon network.
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Eve Online Chat Is Moving to Ejabberd
I am player at heart. I do not have time to play much, but since my young years, I have always been fascinated by gameplay mechanisms, to…