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July 12, 2019 3:45PM
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 12, 2019 3:45PM
Il y a près de neuf ans, Cloudflare était une toute petite entreprise dont j’étais le client, et non l’employé. Cloudflare était sorti depuis un mois et un jour, une notification m’alerte que mon petit site, jgc.org, semblait ne plus disposer d’un DNS fonctionnel....
July 12, 2019 3:45PM
9年ほど前のCloudflareは小さな会社で、当時私は一顧客であり従業員ではありませんでした。Cloudflareがひと月前に設立されたという時期のある日、私は自分の小さなサイト、jgc.orgのDNSが動作していないという警告を受け取りました。そしてCloudflareはProtocol Buffersの使用に変更を加えた上でDNSを切断したのです。 私は「私のDNSはどうなったのでしょうか？」という件名のメールを直接Matthew Prince宛に出しました。...
July 10, 2019 1:07PM
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 3:50PM
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 10:22PM
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 24, 2019 7:58PM
Heute um 10:30 Uhr UTC erlitt das Internet einen kleinen Herzinfarkt. Ein kleines Unternehmen in Nord-Pennsylvania wurde zum bevorzugten Pfad vieler Internetrouten über Verizon (AS701), einem großen Internet-Transitanbieter....
June 20, 2019 1:02PM
The impact of quantum computing on cryptography conducts research and development towards a Post-Quantum era....
June 20, 2019 1:01PM
In anticipation of wide-spread quantum computing, the transition from classical public-key cryptography primitives to post-quantum (PQ) alternatives has started....
November 23, 2018 3:49PM
最近，在访问山景城的计算机历史博物馆的时，我深深地被过去的一些磁芯内存所吸引。我发现我完全不知道这些东西曾经是如何运作的。我想知道环是否旋转（它们没有），以及为什么每个环都有三根电线穿过（我仍然不明白它们是如何工作的）。更重要的是，我意识到我对现代计算机内存——动态RAM的工作方式知之甚少！...
April 17, 2018 10:11PM
In previous blog post we discussed how we use the TPROXY iptables module to power Cloudflare Spectrum. With TPROXY we solved a major technical issue on the server side, and we thought we might find another use for it on the client side of our product....
February 20, 2018 7:49PM
At Cloudflare we like Go. We use it in many in-house software projects as well as parts of bigger pipeline systems. But can we take Go to the next level and use it as a scripting language for our favourite operating system, Linux?...
January 31, 2018 12:13PM
Rust에는 흥미로운 기능이 많지만 그중에도 강력한 매크로 시스템이 있습니다. 하지만 The Book과 여러가지 튜토리얼을 읽고 나서도 서로 다른 요소의 복잡한 리스트를 처리하는 매크로를 구현하려고 하면 저는 여전히 어떻게 만들어야 하는지를 이해하는데 힘들어 하며...
January 15, 2018 1:50PM
우리 Cloudflare는 실제 인터넷상의 서버 운영 경험이 많지만 이런 흑마술 수련도 게을리하지 않습니다. 이 블로그에서는 인터넷 프로토콜의 여러 어두운 부분을 다룬 적이 있지만, 이번에는 리눅스의 SYN패킷 처리에 대해서 자세히 알아 보도록 하겠습니다....
October 23, 2015 2:24PM
Compression is one of the most important tools CloudFlare has to accelerate website performance. Compressed content takes less time to transfer, and consequently reduces load times....
