September 24, 2019 2:01PM
Inside the Web Browser’s Performance API
Speed & Reliability
July 12, 2019 4:45PM
Details of the Cloudflare outage on July 2, 2019
Almost nine years ago, Cloudflare was a tiny company and I was a customer not an employee. Cloudflare had launched a month earlier and one day alerting told me that my little site, jgc.org, didn’t seem to have working DNS any more....
July 10, 2019 2:07PM
A gentle introduction to Linux Kernel fuzzing
For some time I’ve wanted to play with coverage-guided fuzzing. I decided to have a go at the Linux Kernel netlink machinery. It's a good target: it's an obscure part of kernel, and it's relatively easy to automatically craft valid messages....
July 02, 2019 4:50PM
Cloudflare outage caused by bad software deploy (updated)
Starting at 1342 UTC today we experienced a global outage across our network that resulted in visitors to Cloudflare-proxied domains being shown 502 errors (“Bad Gateway”). The cause of this outage was deployment of a single misconfigured rule within the Cloudflare Web Application Firewall (WAF)...
June 26, 2019 11:22PM
The deep-dive into how Verizon and a BGP Optimizer Knocked Large Parts of the Internet Offline Monday
On Monday we wrote about a painful Internet wide route leak. We wrote that this should never have happened because Verizon should never have forwarded those routes to the rest of the Internet. Today we will dive into the archived routing data and analyze it....
June 20, 2019 2:02PM
The Quantum Menace
The impact of quantum computing on cryptography conducts research and development towards a Post-Quantum era....