Cloudflare’s RPKI Toolkit
February 24, 2019 5:00 PM
A few months ago, we made a first then a second announcement about Cloudflare’s involvement in Resource Public Key Infrastructure (RPKI), and our desire to make BGP Internet routing more secure....
How a Nigerian ISP Accidentally Knocked Google Offline
November 15, 2018 5:22 PM
Last Monday evening — 12 November 2018 — Google and a number of other services experienced a 74 minute outage. Incidents like this only serve to demonstrate just how much frailty is involved in how packets get from one point on the Internet to another....
RPKI and BGP: our path to securing Internet Routing
September 19, 2018 12:01 PM
This article will talk about our approach to network security using technologies like RPKI to sign Internet routes and protect our users and customers from route hijacks and misconfigurations....
RPKI - The required cryptographic upgrade to BGP routing
September 19, 2018 12:00 PM
We have talked about the BGP Internet routing protocol before. We have talked about how we build a more resilient network and how we can see outages at a country-level via BGP. We have even talked about the network community that is vital to the operation of the global Internet....
BGP leaks and cryptocurrencies
April 24, 2018 10:31 PM
Over the few last hours, a dozen news stories have broken about how an attacker attempted (and perhaps managed) to steal cryptocurrencies using a BGP leak....
MORE POSTS
February 02, 2017 12:15 PM
NANOG - the art of running a network and discussing common operational issues
The North American Network Operators Group (NANOG) is the loci of modern Internet innovation and the day-to-day cumulative network-operational knowledge of thousands and thousands of network engineers....
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June 21, 2016 6:03 AM
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....
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February 04, 2015 2:16 PM
Path MTU discovery in practice
Last week, a very small number of our users who are using IP tunnels (primarily tunneling IPv6 over IPv4) were unable to access our services because a networking change broke "path MTU discovery" on our servers. ...
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October 02, 2014 4:44 PM
Route leak incident on October 2, 2014
Today, CloudFlare suffered downtime which caused customers’ sites to be inaccessible in certain parts of the world....
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May 07, 2013 2:13 PM
How Syria Turned Off the Internet (Again)
Today at 18:48 UTC, Syria dropped off the Internet. Based on the data we collect from our network, as well as reports from other organizations monitoring network routes, it appears that someone systematically withdrew the BGP. ...
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March 03, 2013 1:47 PM
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....
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November 29, 2012 8:13 PM
How Syria Turned Off the Internet
Today, 29 November 2012, between 1026 and 1028 (UTC), all traffic from Syria to the rest of the Internet stopped. At CloudFlare, we witnessed the drop off. We've spent the morning studying the situation to understand what happened. ...
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November 06, 2012 9:09 AM
Why Google Went Offline Today and a Bit about How the Internet Works
Today, Google's services experienced a limited outage for about 27 minutes over some portions of the Internet. The reason this happened dives into the deep, dark corners of networking. ...
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May 02, 2012 8:41 PM
Today's Outage Post Mortem
CloudFlare had an outage across much of our network today. The outage began at 20:19 (GMT). It affected approximately 75% of traffic to CloudFlare's network. The length of time for the outage varied depending on region, but the maximum period of downtime was approximately 15 minu...
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