On June 21, Cloudflare automatically mitigated a highly volumetric DDoS attack that peaked at 754 million packets per second. The attack was part of an organized four day campaign starting on June 18 and ending on June 21: attack traffic was sent from over 316,000 IP addresses towards a single Cloudflare IP address that was…
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Modern Linux operating systems provide many tools to run code more securely. There are namespaces (the basic building blocks for containers), Linux Security Modules, Integrity Measurement Architecture etc. In this post we will review Linux seccomp and learn how to sandbox any (even a proprietary) application without writing a single line of code. Tux by…
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Cloudflare has deployed a new managed rule protecting customers against a remote code execution vulnerability that has been found in F5 BIG-IP’s web-based Traffic Management User Interface (TMUI). Any customer who has access to the Cloudflare Web Application Firewall (WAF) is automatically protected by the new rule (100315) that has a default action of BLOCK.Initial…
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Cloudflare TV is inspired by television shows of the 90s that shared the newest, most exciting developments in computing and music videos. We had three basic requirements for Cloudflare TV:Guest participation should be as simple as joining a video callThere should be 24×7 programming. Something interesting should be playing all the timeEverything should happen in…
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Cloudflare’s Web Application Firewall (WAF) protects against malicious attacks aiming to exploit vulnerabilities in web applications. It is continuously updated to provide comprehensive coverage against the most recent threats while ensuring a low false positive rate.As with all Cloudflare security products, the WAF is designed to not sacrifice performance for security, but there is always…
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HTTP/3 is the third major version of the Hypertext Transfer Protocol, which takes the bold step of moving away from TCP to the new transport protocol QUIC in order to provide performance and security improvements.During Cloudflare’s Birthday Week 2019, we were delighted to announce that we had enabled QUIC and HTTP/3 support on the Cloudflare…
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The Workers Distributed Data team has been hard at work since we gave you an update last November. Today, we’d like to share with you some of the stuff that has recently shipped in Workers KV: a new feature and an internal change that should significantly improve latency in some cases. Let’s dig in!KV MetadataWorkers…
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In a world where, increasingly, workloads shift to the cloud, it is often uncertain and unclear how data travels the Internet and in which countries data is processed. Today, Cloudflare is pleased to announce that we’re giving our customers control. With Regional Services, we’re providing customers full control over exactly where their traffic is handled.We…
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