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The 7-bit Internet
When I first started digging into the bowels of the Internet, I was fascinated by how many of its protocols—like HTTP and SMTP, for example—were entirely text based.
Topics /
Networking & Internet
The most popular blog posts about networking & internet on Hacker News. 3,019 posts.
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Handshake: Decentralizing DNS to Improve the Security of the Internet
News and announcements from Namebase.
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5Gbps Ethernet on the Raspberry Pi Compute Module 4
tl;dr: I successfully got the Intel I340-T4 4x Gigabit NIC working on the Raspberry Pi Compute Module 4, and combining all the interfaces (including the internal Pi interface), I could get up to 3.06 Gbps maximum sustained throughput. Update: I was able to boost things a bit to get 4.15 Gbps! Check out my video here…
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Estonian Electronic Identity Card: Security Flaws in Key Management
Arnis Parsovs, Software Technology and Applications Competence Center and University of Tartu
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Your First LTE
This post is the perfect starting point for learning to build your own LTE network. View this lession as a guided introduction – including the installation, configuration, and best practices that will ease your learning.
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Windows 7 Network Awareness: How Windows knows it has an Internet connection
Have you ever been connecting to a new wireless network and seen the following pop-up balloon?
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Hunting down the stuck BGP routes
BGP is the glue between all of the thousands of border routers that make up the internet (you can find this post (battleships) and this post (EvE) as a crash course on how BGP works).
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Inside the failed attempt to backdoor SSH globally that got caught by chance
Why the threat actor rushed deployment.
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Going IPv6 Only
How would the current internet function when you're on a native IPv6 host without any IPv4 instead of using any of the IPv4 workarounds? Find out with a few firewall rules!
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Can We Stop Pretending SMS Is Secure Now?
SMS text messages were already the weakest link securing just about anything online, mainly because there are tens of thousands of employees at mobile stores who can be tricked or bribed into swapping control over a mobile phone number to someone else. Now we’re learning about an entire ecosystem of companies that…
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Twitter preconnects to the wrong domains
Twitter tried to reduce load times for external links, but made things slower instead. It mistakenly normalizes domains to a point where they’re no longer useful.
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Tailscale has reached general availability
Just over a year ago, we founded Tailscale with a common sense of nostalgia for the “good old days” of LANs. In our collective opinion (then and now) networking and cloud infrastructure has become too complicated. Attempts to increase team connectivity and migrate towards remote work results in a corresponding burden…
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Behind the Masq: Yet More DNS and DHCP Vulnerabilities
Posted by Fermin J. Serna, Staff Software Engineer, Matt Linton, Senior Security Engineer and Kevin Stadmeyer, Technical Program Manager O...
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Plex vulnerabilities being exploited in the wild to drop a cryptominer
Intro: (No AI was involved in writing, research, etc...) If you see weird fonts and spacing, blame Blogger. Skip to "In the wild exploitati...
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How Unreliable is UDP?
Unlike TCP, UDP doesn't provide any delivery or ordering guarantees. Put into practice, just how bad, or good, is UDP?
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Microsoft Silently Dropping Emails – a Sad but True Story (2020)
From time to time Microsoft decides to block or even silently drop emails that are sent by my selfhosted email server. It’s always a pain and takes a lot of effort to deal with it. This time I decided to…Read more ›
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A most elegant TCP hole punching algorithm
The algorithm in this post needs “double buckets” to be reliable. Otherwise, the two sides can split on bucket boundaries and fail to converge. If the first bucket fails, compute an additional bucket step for convergence. My algorithm trades slow startup for less infrastructure.
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How Precision Time Protocol is being deployed at Meta
Implementing Precision Time Protocol (PTP) at Meta allows us to synchronize the systems that drive our products and services down to nanosecond precision. PTP’s predecessor, Network Time Protocol (…
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Locking the Web Open: A Call for a Distributed Web
(Short form article, Short lecture , Long lecture , demo of a fraction of the idea of a distributed website (or paste this link in maelstrom ))
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We build X.509 chains so you don't have to
For the past eight months, Trail of Bits has worked with the Python Cryptographic Authority to build cryptography-x509-verification, a brand-new, pure-Rust implementation of the X.509 path validation algorithm that TLS and other encryption and authentication protocols are built on. Our implementation is fast…
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Welcoming Rocket.Chat to Matrix
Matrix, the open protocol for secure decentralised communications
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Linux kernel bug delivers corrupt TCP/IP data
(Edit: This article is now up on hacker news, feel free to discuss there)
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Set up an email server in two hours
You may be concerned that the NSA is reading your e-mail. Is there really anything you can do about it though? After all, you don’t really want to move off of GMail / Google Apps. And no plac…
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USB 3.0* Radio Frequency Interference on 2.4 GHz Devices (2012)
Browse Intel product information for Intel® Core™ processors, Intel® Xeon® processors, Intel® Arc™ graphics and more.