61
62
63
When your IP traffic in AWS disappears into a black hole
When we’d spin up new machines, some would fail our health checks. There was no network traffic between these boxes and our database machines.. The ARP tables on the database boxes had cached, outdated MAC addresses from no-longer-living boxes.
64
A Shark on the Network
DISCLAIMER: I do not condone monitoring network traffic with intent to spy or otherwise cause harm to people. My interest in the techniques described below is academic. I write in the hope that I can improve Internet security, or at least increase public awareness of vulnerabilities. If you are attempting to replicate…
65
IPv6 privacy addresses crashed the MIT CSAIL network
A few hours ago, I sent the following “dear colleagues” email (lightly edited to remove some private details) to all my users at work: This has been a very trying week. For those of you…
66
RFC 2616 is dead
Don’t use RFC 2616. Delete it from your hard drives, bookmarks, and burn (or responsibly recycle) any copies that are printed out.
67
Building My Own Home Router
This page has moved. If your browser hasn't redirected you already, click here .
68
TCP is harder than it looks
It's easy to write a TCP stack that works with most traffic. It's harder to write one that interoperates properly with every strange or buggy device that's out there.
69
China Just Blocked Thousands of Websites
自2011年以来用技术对抗审查。我们使用AI监控审查并在全球范围内扩大言论自由。
70
CloudFlare Now Supports WebSockets
I'm pleased to announce that CloudFlare now supports WebSockets. The ability to protect and accelerate WebSockets has been one of our most requested features.
71
72
73
Keyless SSL: The Nitty Gritty Technical Details
We announced Keyless SSL yesterday to an overwhelmingly positive response. We read through the comments on this blog, Reddit, Hacker News, and people seem interested in knowing more and getting deeper into the technical details.
74
75
You might not need a WebSocket
Before I begin, I want to say that WebSockets are great. I’ve even implemented RFC 6455 myself in Zurl and Pushpin, which are used by Fanout Cloud.However, a...
76
Protecting Net Neutrality and the Open Internet
(Updated May 6 with additional notes; see below.) In January, the DC Circuit Court of Appeals struck down a Federal Communications Commission (FCC) order that prevented Internet Service Providers (ISPs) ...
77
78
Something is amiss with the Interwebs: BGP is a flapping
Something is amiss with the Interwebs! BGP is a flapping. , Author: Adrien de Beaupre
79
The Day We Fought Back: By The Numbers
96,000 calls, 555,000 emails, 245,000 signatures and more. Find out what happened this Tuesday.
80
Wifi: “beamforming” only begins to describe it
[Note to the impatient: to try out my beamforming simulation, which produced the above image, visit my beamlab test page - ideally in a brow...
81
Unraveling NSA's TURBULENCE Programs
The NSA TURBULENCE program was first revealed in 2007 by the Baltimore Sun for being over-budget and poorly-managed 1 2 . Many documents from the Snowden trove from the past two years reference parts of this program, but no coherent story or overview of how these programs operate together has been described. This is…
82
83
Your Wireless Router Is Broken – Help Us Fix It At DEF CON
As part of our Open Wireless Movement, we set out to create router software that would make it easier for people to safely and smartly share part of their wireless network. Protecting hosts, so their security is not compromised because they offer open networks, is one of the goals of the router...
84
VP8 and H.264 to both become mandatory for WebRTC
WebRTC is one of the most exciting things to happen to the Web in years: it has the potential to bring instant voice and video calling to anyone with a browser, finally unshackling us from propriet…
85
How Verizon's Advertising Header Works
Over the past couple of days, there’s been an outpouring of concern about Verizon’s advertising practices. Verizon Wireless is injecting a unique identifier into web requests, as data transits the network. On my phone, for example, here’s the extra HTTP header. 1
86
87
88
Introducing Pseudo IPv4
Today is June 6. For the last two years, the date has been celebrated as World IPv6 Day. CloudFlare has offered full IPv6 support as well as our IPv6-to-IPv4 gateway since 2012.
89
90
HFT in my backyard – III
INTRO Last Friday evening, I received a tip via telephone, “You should go to the Houtem tower tomorrow morning. Jump may work on the network.” Unfortunately I couldn’t make it back to Houtem. But i…