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Modeling Starlink Capacity
Prior attempts to calculate Starlink’s potential for service have been theoretical. We simulate based on the actual constellation.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 1,615 posts.
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HTTP 308 Incompetence Expected
Internet History The Internet from every angle has always been a house of cards held together with defective duct tape. It's a miracle tha...
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Hello IPv6: a minimal tutorial for IPv4 users
A short IPv6 tutorial, explaining the basics, primarily for home and small networks.
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10Gb/s Ethernet: what I did to get it working in my home
I already had 2.5Gb/s working. Here's how I upgraded the whole house to 10Gb/s Ethernet -- including real iperf3 numbers, MikroTik switches, scary thermals, and what actually worked.
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What domain name to use for your home network
Always use the ‘.home.arpa’ top-level domain (RFC 8375), and don’t use the special-purpose ‘.local,’ or made-up undelegated domain names like ‘.lan’ or ‘.home.’
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The Actual OSI Model
I have said before that I believe that teaching modern students the OSI model as an approach to networking is a fundamental mistake that makes the concepts less clear rather than more. The major reason for this is simple: the OSI model was prescriptive of a specific network stack designed alongside it, and that…
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SMS Multifactor Authentication in Antarctica
Issues pertaining to SMS (for multifactor auth) in Antarctica.
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The Influence of Bell Labs
We’ve talked previously about Bell Labs’ long, storied history as an innovation engine and a generator of new technology.
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Freeing the Web from the Browser
The Web is, without a doubt, the most powerful research tool currently available to man. No longer must researchers comb through endless indices and catalogues to find what they are looking for. Instead, hyperlinks allow users to associatively explore rich interconnected structures of information with ease. In just a…
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How NSA and GCHQ are tapping internet cables
A weblog about Signals Intelligence, Communications Security and top level telecommunications equipment
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Why Telegram is insecure (2015)
Telegram, the encrypted messaging app loved by terrorists, has been in the news lately. Terrorists have long used existing commercial and…
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If you get the chance, always run more extra network fiber cabling
You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace , the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this applies to versions…
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Avoid Consumer Routers
Consumer Routers are not secure
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The beginning of the end for copper wire
The FCC voted last Thursday to relax the rules for retiring copper wiring. This change was specifically aimed at Verizon and AT&T and is going to make it a lot easier for them to tear down old …
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Getting 25 Gbps Thunderbolt Ethernet on My Mac Studio
I've been using the built-in 10 Gigabit Ethernet on my Mac Studio for a few years. It works fine: I can edit 4K video straight off my NAS over the network, and run backups at around 1 GB/sec. But... I want more. I upgraded my rack and my NAS to 25 GbE a couple years ago, and wanted to upgrade my main workstation, too.
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Scapy: Low level packet hacking toolkit for Python
Code level discussion of web scraping, gray hat automation, growth hacking and bounty hunting
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Internet centralization and the original sin of NAT
How NAT broke the concept of an internet connection
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Comcast internet speed improved with non-Comcast hardware
I am sure the first thought that goes through the mind of many when reading this headline is "of course Comcast is ripping me off!" Comcast is one of the most hated service providers in the U.S. They have some of the lowest customer satisfaction possible , their pricing tactics outrageo
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DNS doesn't “propagate”
DNS "propagation" is actually caches expiring
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What changes when you turn a Linux box into a router
I think it is incredibly cool that we can change a Linux system into a networking device. But have you ever wondered:
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gRPC: The Bad Parts
gRPC isn't perfect but who is?
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Please do not put IP addresses into DNS MX records
This blog is written by Hanno Böck. Unless noted otherwise, its content is licensed as CC0 .
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The British empire's resilient subsea telegraph network
subsea cables, internet infrastructure, telecom infrastructure, 2Africa, new subsea cable projects, layer 1 pricing on key international routes,
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Paper review: IPFS – Content addressed, versioned, P2P file system
This week we discussed the IPFS whitepaper by Juan Benet in my Distributed Systems Seminar. Remember peer-to-peer systems? IPFS is "pe...
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The IPv6 Transition
I wrote an article in May 2022, asking “Are we there yet?” about the transition to IPv6. At the time I concluded the article on an optimistic note, observing that we may not be ending the transition just yet, but we are closing in. I thought at the time that we won’t reach the end of this transition to IPv6 with a…