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Tracking my phone's silent connections
FOSS and life. Kushal Das talks here.
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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A Recycled IP Address Caused Me to Pirate Books by Accident
Let me tell you a story on how a subdomain of mine managed to serve 390,000+ PDF books without any of my servers being compromised.
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How to hide your IP address
A field guide to VPNs, proxies, and traffic relaying
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It looks like I’m moving to Mastodon
Elon Musk laid off about half of Twitter this morning. There are many terrible stories emerging about how this went down, but one that particularly struck me was that he …
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Bitsquatting Windows.com
Earlier this month, I came back around to seriously considering an attempt at bitsquatting. While the prior link goes into great depth on the topic, I will attempt to give a very high level overview here: If this sort of thing interests you: I tend to do stuff like this weekly. Give me a follow @_mattata
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FIFA 2014 World Cup live stream architecture
We were given the task to stream the FIFA 14 World Cup and I think this was an experience worth sharing. This is a quick overview about: the architecture, the components, the pain, the learning, th…
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Spying on HTTPS
When I launched Chrome on Thursday, I saw something unexpected: While most users probably would have no idea what to make of this, I happened to know what it means– Chrome is warning me that …
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When “Dumb Pipes” Get Too Smart
I wrote this in 2012, when CloudFlare (an almost awkwardly popular CDN) introduced a bug into websites they hosted using some of their "advanced features" via injected JavaScript that managed to not just break the website but lock up entire web browers by tickling a scheduler starvation bug in WebCore. This issue was…
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There’s more than one way to write an IP address (2019)
There's more than one way to write an IP address: decimal, hex, octal, overflowed octets and omitted zeroes all resolve to the same host. A fun trick to mess …
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Precise geolocation via Wi-Fi Positioning System
How dare you!
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Serverless Sync in Web Apps Using Bit Torrent
This post explores using WebTorrent for serverless data synchronization in web apps, demonstrated by modifying the Voice Memos PWA. The goal was to enable data sharing between devices without a backend server. The solution involves generating magnet URLs that allow peer-to-peer data transfer via WebTorrent. The demo…
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How to copy a file between devices? (2022)
Introduction Copying a file across devices is painful. You’re on your phone, but you want to access a file that’s on your laptop. How do you do it? What about the other way around? What about copying any file between any of your devices? I asked my dad how he copies a file from his phone to his computer, and he…
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Using a catch-all domain is a mistake
After about a decade of dealing with this madness, surely it's been worthwhile? No, not really.
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A technical look at Iran's internet shutdowns
This post is written by a human being (me).
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What happens when you update your DNS
What happens when you update your DNS?
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Iran forged the wrong SSL certificate
If you want to be really evil, however, *.google.com is the wrong SSL certificate to forge. The right one? ssl.google-analytics.com .
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Push Notifications, WebXR, and better PWA support coming to iOS
New APIs, capabilities, bugs, and challenges for Safari and PWAs running in iOS 15.4 and iPadOS 15.4, including Web Push Notifications, WebXR
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The Confusing World of USB
For decades, my perception of USB was that of a technology both simple and reliable. You plug it and it works. The two first iterations [1] [2] freed PCs from a badly fragmented connector world made of RJ-45 (Ethernet), DA-15 (Joystick), DE-9 (Serial), DIN (PS/2), SCSI, and DB-25 (Parallel). When USB-3.0 came out…
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Rethinking the D-Bus Message Bus
Later this year, on November 21, 2017, D-Bus will see its 15th birthday. An impressive age, only shy of the KDE and GNOME projects, whose collaboration inspired the creation of this independent IPC system. While still relied upon by the most recent KDE and GNOME releases, D-Bus is not free of criticism. Despite its…
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AWS IPv4 Estate Now Worth $4.5B
AWS grew its IPv4 estate with an additional 27 million IP addresses to now owning 128 Million IPv4 addresses. At a value of $35 per IPv4 address, the total value of AWS’ IPv4 estate is ~4.5 Billion dollars. An increase of $2 billion
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Mastodon is doomed?
Mastodon won't be the next Twitter, and it's not because of Bluesky. The ideals and execution won't scale.
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Intruder at the top of the 20 meter amateur band?
It wasn't my intent to have this next post be about locating a source of a transmitter - but the temptation proved irresistible. Over the pa...