At midnight UTC on New Year’s Day, deep inside Cloudflare’s custom RRDNS software, a number went negative when it should always have been, at worst, zero. A little later this negative value caused RRDNS to panic. This panic was caught using the recover feature of the Go language.
A Post Mortem on this Morning's Incident
We would like to share more details with our customers and readers on the internet outages that occurred this morning and earlier in the week, and what we are doing to prevent these from happening again. June 17 incident On June 17, at 08:32 UTC, our systems detected a
Details Behind Today's Internet Hacks
When I woke up this morning I had no idea I'd be on a video conference with CloudFlare, OpenDNS, Google, GoDaddy, Twitter tech folks all day— Rajiv Pant (@rajivpant) August 28, 2013 At 1:19pm (PDT) today, a researcher noticed that the New York Times' website
Today's Network Issue
Today at 16:13 UTC a large amount of traffic began hitting our Los Angeles data center. We have an in-house team that monitors our network 24x7x365 and immediately all their alarms went off. We initially thought it was a very large attack. In fact, it was something much trickier
Today's Outage Post Mortem
This morning at 09:47 UTC CloudFlare effectively dropped off the Internet. The outage affected all of CloudFlare's services including DNS and any services that rely on our web proxy. During the outage, anyone accessing CloudFlare.com or any site on CloudFlare's network would have received
Post Mortem: What Yesterday's Network Outage Looked Like
Yesterday, around 16:36 GMT, we had an interruption to our network services. The interruption was caused by a combination of factors. First, we had an upstream bandwidth provider with some network issues that primarily affected our European data centers. Second, we misapplied a network rate limit in an attempt
The Four Critical Security Flaws that Resulted in Last Friday's Hack
A core value CloudFlare is that security information should be shared between organizations to make the entire Internet safer. That is how CloudFlare's systems work: if one site is attacked, data about that attack is immediately shared with the rest of the network so other sites can be
Post Mortem: Today's Attack; Apparent Google Apps/Gmail Vulnerability; and How to Protect Yourself
This morning a hacker was able to access a customer's account on CloudFlare and change that customer's DNS records. The attack was the result a compromise of Google's account security procedures that allowed the hacker to eventually access to my CloudFlare.com email addresses,