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Automating Cloudflare Tunnel with Terraform

Cloudflare Tunnel allows you to connect applications securely and quickly to Cloudflare’s edge. With Cloudflare Tunnel, teams can expose anything to the world, from internal subnets to containers, in a secure and fast way. Thanks to recent developments with our Terraform provider and the advent of Named Tunnels it’s never been easier to spin up.Classic…

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Humanity wastes about 500 years per day on CAPTCHAs. It’s time to end this madness

Select all the buses. Click on bikes. Does this photo have traffic lights? As ridiculous as these questions are, you’re almost guaranteed to have seen one recently. They are a way for online services to separate humans from bots, and they’re called CAPTCHAs. CAPTCHAs strengthen the security of online services. But while they do that,…

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Highly available and highly scalable Cloudflare tunnels

Starting today, we’re thrilled to announce you can run the same tunnel from multiple instances of cloudflared simultaneously. This enables graceful restarts, elastic auto-scaling, easier Kubernetes integration, and more reliable tunnels.What is Cloudflare Tunnel?I work on Cloudflare Tunnel, a product our customers use to connect their services and private networks to Cloudflare without poking holes…

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Designing the new Cloudflare Web Application Firewall

The Cloudflare Web Application Firewall (WAF) protects websites and applications from malicious traffic attempting to exploit vulnerabilities in server software. It’s a critical piece of the broader security posture of your application. With that in mind, we made sure improvements to the Web Application Firewall dashboard experience made it easier to enable the WAF and…

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Branch predictor: How many “if”s are too many? Including x86 and M1 benchmarks!

Some time ago I was looking at a hot section in our code and I saw this: if (debug) { log(“…”); } This got me thinking. This code is in a performance critical loop and it looks like a waste – we never run with the “debug” flag enabled[1]. Is it ok to have if…

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Entwicklung der DDoS-Bedrohungslandschaft im ersten Quartal 2021

Letzte Woche fand die Cloudflare Developer Week statt – ein willkommener Anlass für unsere Teams, eine Reihe von spannenden neuen Produkten und nicht zuletzt auch einige Verbesserungen für Workers vorzustellen. Die Qualitäten dieser Lösung für den Einsatz von Applikationen wissen übrigens nicht nur unsere Kunden zu schätzen: Das Tool erfreut sich auch bei unseren eigenen…

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SSHing to my Raspberry Pi 400 from a browser, with Cloudflare Tunnel and Auditable Terminal

A few weeks ago I received a Raspberry Pi 400 as a gift. I didn’t have time to do anything beyond plug it in and verify that it works. It’s great that the Pi 400 comes with everything you need except for a screen: there’s the computer itself, mouse, HDMI cable and power adapter.The Pi…

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Project Jengo Redux: Cloudflare’s Prior Art Search Bounty Returns

Here we go again.On March 15, Cloudflare was sued by a patent troll called Sable Networks — a company that doesn’t appear to have operated a real business in nearly ten years — relying on patents that don’t come close to the nature of our business or the services we provide. This is the second…

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