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2,099 articles from Cloudflare.

SRE & Ops — How Cloudflare runs Prometheus at scale

How Cloudflare runs Prometheus at scale

Here at Cloudflare we run over 900 instances of Prometheus with a total of around 4.9 billion time series. Operating such a large Prometheus deployment doesn’t come without challenges . In this blog post we’ll cover some of the issues we hit and how we solved them

LLukaszLukasz·March 3, 2023SRE & Ops
Engineering — A look at Internet traffic trends during Super Bowl LVII

A look at Internet traffic trends during Super Bowl LVII

We look at who the biggest winners were among Super Bowl advertisers, and examine traffic trends for food delivery services, social media, and sports and betting sites. We also review city and state-level traffic trends, as well as related email threat volume in the weeks ahead of the game

DBDavid Belson, Joao TomeDavid Belson, Joao Tome·February 13, 2023Engineering
Security — CVE-2022-47929: traffic control noqueue no problem?

CVE-2022-47929: traffic control noqueue no problem?

In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control configuration that is set up with "tc qdisc" and "tc class" commands.

FFrederickFrederick·January 31, 2023Security
Engineering — Cyberattacks on Holocaust educational websites increased in 2022

Cyberattacks on Holocaust educational websites increased in 2022

Today, 78 years after the liberation of the Auschwitz death camp, we mark the International Holocaust Remembrance Day. With Cloudflare’s Project Galileo, we protect Holocaust educational websites and at risk public interest groups. Read more to see how attacks on these groups increased in 2022.

OOmerOmer·January 27, 2023Engineering
SRE & Ops — Cloudflare incident on January 24, 2023

Cloudflare incident on January 24, 2023

Several Cloudflare services became unavailable for 121 minutes on January 24th, 2023 due to an error releasing code that manages service tokens. The incident degraded a wide range of Cloudflare products

KSKenny, SamKenny, Sam·January 25, 2023SRE & Ops
Engineering — Internet disruptions overview for Q4 2022

Internet disruptions overview for Q4 2022

In this post, we review selected Internet disruptions observed by Cloudflare during the fourth quarter of 2022, supported by traffic graphs from Cloudflare Radar and other internal Cloudflare tools, and grouped by associated cause or common geography.

DBDavid BelsonDavid Belson·January 20, 2023Engineering
Distributed — Introducing Waiting Room Bypass Rules

Introducing Waiting Room Bypass Rules

Waiting Room now offers customers more fine-tuned control over what traffic a waiting room covers. Queue only the traffic you want to with Bypass Waiting Room Rules, now available to all Enterprise customers with an Advanced Purchase of Waiting Room.

APArielle, PiperArielle, Piper·January 19, 2023Distributed
Security — CIO Week 2023 recap

CIO Week 2023 recap

Learn about all the new products, partnerships, and innovations Cloudflare announced during CIO Week to help organizations modernize their IT and security.

JCJames Chang, Corey MahanJames Chang, Corey Mahan·January 13, 2023Security
Networking — Give us a ping. (Cloudflare) One ping only.

Give us a ping. (Cloudflare) One ping only.

Now Zero Trust administrators can use the familiar debugging tools that we all know and love like ping, traceroute, and MTR to test connectivity to private network destinations running behind their Tunnels

ACAbe, Chung TingAbe, Chung Ting·January 13, 2023Networking
Engineering — Why do CIOs choose Cloudflare One?

Why do CIOs choose Cloudflare One?

Over 10,000 organizations trust Cloudflare One to connect and secure users, devices, applications, and data. Hear from the leaders of our customers to better understand why they selected Cloudflare.

SSamSam·January 10, 2023Engineering
Security — Cloudflare DDoS threat report for 2022 Q4

Cloudflare DDoS threat report for 2022 Q4

In Q4, Cloudflare mitigated millions of DDoS attacks. Attack durations increase, volumetric attacks surged, and ransom DDoS attacks persist. Travel & events industries were hit hardest and over 90% of traffic to Chinese Internet properties were L3/4 DDoS attacks. Read more on our recent report.

OOmerOmer·January 10, 2023Security
Security — Welcome to CIO Week 2023

Welcome to CIO Week 2023

This CIO Week we’ll demonstrate how Cloudflare is helping CIOs keep data, devices and employees both safe and fast across hybrid and remote environments. We’ll show how Cloudflare accelerates digital transformation and modernizes networking and security towards a Zero Trust model

CMCorey Mahan, JuanCorey Mahan, Juan·January 8, 2023Security
Security — How Cloudflare can help stop malware before it reaches your app

How Cloudflare can help stop malware before it reaches your app

Today, we’re making the job of application security teams easier, by providing a content scanning engine integrated with our Web Application Firewall (WAF), so that malicious files being uploaded by end users, never reach origin servers in the first place

MTMichael TremanteMichael Tremante·January 4, 2023Security
Networking — The state of HTTP in 2022

The state of HTTP in 2022

So what happened at all of those working group meetings, specification documents, and side events in 2022? What are implementers and deployers of the web’s protocol doing? And what’s coming next?

MNMark NottinghamMark Nottingham·December 30, 2022Networking
Engineering — Cloudflare Radar 2022 Year in Review

Cloudflare Radar 2022 Year in Review

We’re excited to present the Cloudflare Radar 2022 Year In Review, featuring interactive charts, graphs, and maps you can use to explore what changed on the Internet throughout this past year

DBDavid Belson, StanleyDavid Belson, Stanley·December 22, 2022Engineering