Cloudflare Dashboard and API Outage on April 15, 2020

Cloudflare Dashboard and API Outage on April 15, 2020

Starting at 1531 UTC and lasting until 1952 UTC, the Cloudflare Dashboard and API were unavailable because of the disconnection of multiple, redundant fibre connections from one of our two core data centers.

This outage was not caused by a DDoS attack, or related to traffic increases caused by the COVID-19 crisis. Nor was it caused by any malfunction of software or hardware, or any misconfiguration.

What happened

As part of planned maintenance at one of our core data centers, we instructed technicians to remove all the equipment in one of our cabinets. That cabinet contained old inactive equipment we were going to retire and had no active traffic or data on any of the servers in the cabinet. The cabinet also contained a patch panel (switchboard of cables) providing all external connectivity to other Cloudflare data centers. Over the space of three minutes, the technician decommissioning our unused hardware also disconnected the cables in this patch panel.

This data center houses Cloudflare’s main control plane and database and as such, when we lost connectivity, the Dashboard and API became unavailable immediately. The Cloudflare network itself continued to operate normally and proxied customer websites and applications continued to operate. As Continue reading

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Kernel of Truth season 3 episode 4: Production Ready Automation

Subscribe to Kernel of Truth on iTunes, Google Play, Spotify, Cast Box and Sticher!

Click here for our previous episode.

In this episode hosts Roopa Prabhu and Brian O’Sullivan chat with Justin Betz about production grade automation and CI/CD workflows for continuous maintenance and deployment of your “infrastructure as code.” They also discuss how like any other software code, code to manage and automate your infrastructure (IAC) has to be maintained, fixed, withstand hardware and software upgrades — so how do you do that? Finally, the group talks about Open Source production quality automation code. Enjoy!

Guest Bios

Roopa Prabhu: Roopa Prabhu is Chief Linux Architect at Cumulus Networks. At Cumulus she and her team work on all things kernel networking and Linux system infrastructure areas. Her primary focus areas in the Linux kernel are Linux bridge, Netlink, VxLAN, Lightweight tunnels. She is currently focused on building Linux kernel dataplane for E-VPN. She loves working at Cumulus and with the Linux kernel networking and debian communities. Her past experience includes Linux clusters, ethernet drivers and Linux KVM virtualization platforms. She has a BS and MS in Computer Science. You can find her on Twitter at @__roopa.

Continue reading

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Cisco says to patch critical UCS security holes now

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Harvesting ambient energy will power IoT, scientists say

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Pushing BGP Flowspec rules to multiple routers

Real-time DDoS mitigation using BGP RTBH and Flowspec describes the open source DDoS Protect application. The software runs on the sFlow-RT real-time analytics engine, which receives industry standard sFlow telemetry from routers and pushes controls using BGP. A recent enhancement to the application pushes controls to multiple routers in order to protect networks with redundant edge routers.
ddos_protect.router=10.0.0.96,10.0.0.97
Configuring multiple BGP connections is simple, the ddos_protect.router configuration option has been extended to accept a comma separated list of IP addresses for the routers that will be connecting to the controller.
Alternatively, a BGP Flowspec/RTBH reflector can be used to propagate the controls. Flowspec is a recent addition to open source BGP software, FRR and Bird, and it should be possible to use this software to reflect Flowspec controls. A reflector can be a useful place to implement policies that direct controls to specific enforcement devices.

Support for multiple BGP connections in the DDoS Protect application reduces the complexity of simple deployments by removing the requirement for a reflector. Controls are pushed to all devices, but differentiated policies can still be implemented by configuring each device's response to controls.

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Offer of Assistance to Governments During COVID-19

Offer of Assistance to Governments During COVID-19
Offer of Assistance to Governments During COVID-19

As the COVID-19 emergency continues to affect countries and territories around the world, the Internet has been a key factor in providing information to the public. As businesses, organizations and government agencies adjust to this new normal, we recognize the strain that this pandemic has put on the groups working to assist in virus mitigation and provide accurate information to the general public on the state of the pandemic.

At Cloudflare, this means ensuring that these entities have the necessary tools and resources available to them in these extenuating circumstances. On March 13, we announced our Cloudflare for Teams products will be free until September 1, 2020, to ensure Cloudflare users and prospective users have the tools they need to support secure and efficient remote work. Additionally, we have removed usage caps for existing Cloudflare for Teams users and are also providing onboarding sessions so these groups can continue business in this new normal.

As a company, we believe we can do more and have been thinking about ways we can support organizations and businesses that are at the forefront of the pandemic such as health officials and those providing relief to the public. Many organizations have reached out to Continue reading

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When All You Have Are Stretched VLANs…

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There are two ways of solving today’s challenge:

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