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The Internet of Things – A Disaster
It's bullshit, no question, let's get past that part. How did Nest screw up this finished product?
Topics /
Networking & Internet
The most popular blog posts about networking & internet on Hacker News. 1,615 posts.
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Where's the fastest place to put my server? How much does it matter?
Using my own web server accesslogs and public latency data to get a quantitative answer and why roundtrips are such a pain.
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Traceroute Isn't Real
Almost nobody understands how traceroute works. Worse, it's not a real tool
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Your WiFi Can See You
And it's so much worse than you think
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Let's Encrypt's old root certificate is expiring
On 30th September 2021, the root certificate that Let's Encrypt are currently using, the IdentTrust DST Root CA X3 certificate, will expire. You may or may not need to do anything about this Root CA expiring, but I'm betting a few things will probably break on that day
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Plain Text Protocols
If you haven't noticed already I really love plain text so I thought I would find some plain text protocols that are used in different software systems. The Redis Protocol specification states it best by describing its own protocol, but this applies to all of the plain text protocols I will cover.
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IP Addresses Through 2025
It's time for another annual roundup from the world of IP addresses. Let’s see what has changed in the past 12 months in addressing the Internet and look at how IP address allocation information can inform us of the changing nature of the network itself.
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FreeBSD on the Raspberry Pi
How to install FreeBSD on a Raspberry Pi, one step in building an Active Directory server with Samba and FreeBSD.
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The perils of the “real” client IP
This post ended up being incredibly long comprehensive. I’m afraid that many people won’t read enough to get everything that’s important, so here are the key points:
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HFT in My Backyard
INTRO As soon as the summer sun returns to Belgium, there is a natural human migration from Francophone Wallonia to the west coast sea in the Flemish part of the country. Here, à la mer du Nord, pe…
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Shortest bit sequence that's never been sent over the Internet (2017)
We can never know for sure because we don't have a comprehensive list of all the data. But what can we say probabilistically? Restating it like so:
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AWS and their billions in IPv4 addresses
Earlier this week, I was doing some work on AWS and wanted to know what IP addresses were being used. Luckily for me, AWS publishes this all here https://ip-ranges.amazonaws.com/ip-ranges.json. When you go through this list, you’ll quickly see that AWS has a massive asset
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Mastodon and the challenges of abuse in a federated system
This post will probably only make sense to those deeply involved in Mastodon and the fediverse. So if that’s not your thing, or you’re not interested in issues…
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The Rise of One-Time Password Interception Bots
In February, KrebsOnSecurity wrote about a novel cybercrime service that helped attackers intercept the one-time passwords (OTPs) that many websites require as a second authentication factor in addition to passwords. That service quickly went offline, but new research reveals a number of competitors have since…
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Remembering the LAN
I started programming in the 1990s living above my parent's medical practice. We had 15 PCs for the business, and one for me. The standard OS was MS-DOS. The network started off using IPX over coax to a Novell Netware server, the fanciest software we ever owned. IPX was so much easier than TCP/IP. No DHCP and address…
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A History of the TTY
It's one of those anachronisms that is deeply embedded in modern technology. From cloud operator servers to embedded controllers in appliances, there must be uncountable devices that think they are connected to a TTY.
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5G Skeptic
When I was working at AWS, around 2017 we started getting excited pitches from companies who wanted to be part of the 5G build-out, saying that obviously there’d be lots of opportunities for public-cloud providers. But I never walked away convinced. Either I didn’t believe the supposed customers really needed what 5G…
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VPN over SSH? The Socks Proxy
Some resources on the internet might be only accessible from clients with particular IP addresses. For example, suppose you want to…
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Change your MAC address with a shell script (2019)
Sometimes I'm at a coffee shop and get locked out of the wifi, after an hour or two has passed. Rather than spending 2 minutes/week entering terminal commands, I thought it made sense to spend a few hours figuring out how to make it take one minute a week, instead, via AUTOMATION
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Does Zoom use end-to-end encryption?
TL;DR: It’s complicated. Yesterday Zoom (the videoconferencing company, not the defunct telecom) put out a clarification post describing their encryption practices. This is a nice example of …
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What would a EvE online Internet look like?
EvE online is a fascinating game. It’s one of the few MMO’s that only have a single “server” to log into, meaning everyone is playing on the same logical world. It’s also had a fascinating set of events that have happened inside it, and also remains a very visually appealing game for what it is: