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Reverse-engineering Ethernet backoff on the Intel 82586 network chip's die
Introduced in 1973, Ethernet is the predominant way of wiring computers together. Chips were soon introduced to handle the low-level aspects...
Topics /
Networking & Internet
The most popular blog posts about networking & internet on Hacker News. 3,019 posts.
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OpenSSH Keystroke Obfuscation Bypass
A disclosure for an OpenSSH keystroke obfuscation bypass affecting current OpenSSH versions after 9.4.
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The Fediverse is an opportunity learned societies can't ignore
Björn Brembs argues that learned societies should lead developments on federated social media platforms, such as Mastodon.
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Transfer files over an Ethernet patch cable
It's possible to just connect two computers together with Ethernet and do a bit of IP configuration:
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Some people want to run their own servers
Open Source Freelancer
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Element Matrix Services Launches Bridging for Microsoft Teams
After offering bridges to Discord, Slack and Telegram, Element Matrix Services (EMS) is now launching Microsoft Teams Bridging.
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Geolocating requests with Google Load Balancer for free
Insights, guides, and product updates from Cloud Intelligence™.
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Say No to Paxos Overhead: Replacing Consensus with Network Ordering
Just say NO to Paxos overhead: replacing consensus with network ordering Li et al., OSDI 2016 Everyone knows that consensus systems such as Paxos, Viewstamped Replication, and Raft impose high over…
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So long, home T1 line; hello, hacking the T1 router
Floodgap has had a T1 line since I moved into this house in 2011. I'm one of those weirdos who runs my own hardware and prefers to avoid ...
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RCE on Telia Routers
Multiple vulnerabilities could allow running arbitrary code on an intranet server and gain root access on all the customers' routers
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ICMP, Ping, and Traceroute – What I wish I was taught (2020)
I wanted to write a post and do a bit of a deepdive into ICMP, ping and traceroute. I’ve found that having a good networking foundation has been a tremendous…
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Is there hope for IPv6?
Last year Georgia Tech’s Internet Governance Project teamed up with ICANN’s Office of the Chief Technology Officer to research the economic factors affecting the decisions of network operators to deploy Internet Protocol version 6 (IPv6). The study was commissioned because we both believe that the Internet community…
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Modern email can be built from borrowed parts
Let's design the successor to email on top of HTTP, fixing the design flaws SMTP has been dragging along for 40 years. Piece by piece. The goal is…
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Matrix.org Will Migrate to MAS
Matrix, the open protocol for secure decentralised communications
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Rapid DHCP: Or, how do Macs get on the network so fast? (2011)
One of life's minor annoyances is having to wait on my devices to connect to the network after I wake them from sleep. All too often, I'll open the lid on my …
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Systems Monitoring with Prometheus and Grafana
The evolution of systems monitoring technology decisions and practices for multi-machine Hyperfeed and predictive technology.
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Mastodon 2.5 released
Mastodon 2.5 is the 100th released version of Mastodon since the project’s inception almost 2 years ago. It brings a variety of improvements to the software, the full list of which is available in the changelog. Public profile page The public areas of the web interface have been redesigned. The color scheme and design…
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Fun with DNS TXT Records
TXT Record Specification Primer # Reading through the RFC Using the Domain Name System To Store Arbitrary String Attributes to summarise the relevant part: Any printable ASCII character is permitted for the attribute name. More importantly, on the restrictions section Some DNS server implementations place limits on…
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Lightning on Stellar: Technical Spec and Roadmap
The technical specification and timeline for Lightning on Stellar, including working examples and an explanation of the new BUMP_SEQUENCE operation.
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Announcing Envoy: C++ L7 proxy and communication bus
Today we are incredibly excited to open source Envoy, our high performance C++ distributed proxy and communication bus designed for large…
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Google Public DNS turns 8.8.8.8 years old
Posted by Alexander Dupuy, Software Engineer Once upon a time, we launched Google Public DNS , which you might know by its iconic IP addre...
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Targeted attack on our management with the Triangulation Trojan
So you’ve heard of blockchain. But how can you use it in your enterprise today? Vitaly Mzokov explores the benefits and security challenges.
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Introduction to AT Protocol
Walkthrough of the various parts and concepts in Bluesky's AT Protocol (ATProto), the types of servers involved and how it all fits together
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A Technology Preview of Nginx Support for QUIC and HTTP/3
We announce the technology preview of NGINX support for QUIC+HTTP/3 as pre-release software, available for interoperability testing, feedback, and code contributions. HTTP/3 replaces TCP with QUIC, which is designed to support multiplexed connections more reliably.
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HFT in my backyard – II
This is insane: more than 28,000 visitors came to read Part I of “HFT in my backyard”. Some of them are inevitably bots, but my logs reveal the majority to be human readers from bank desks, technol…
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