Tag: tech

There is a theory which states that if ever anyone discovers exactly what the Linux networking stack does and why it does it, it will instantly disappear and be replaced by something even more bizarre and inexplicable.There is...

On April 10th, 2025 12:10 UTC, a security researcher notified Cloudflare of two vulnerabilities (CVE-2025-4820 and CVE-2025-4821) related to QUIC packet acknowledgement (ACK) handling, through our Public Bug Bounty program....

Linux’s networking capabilities are a crucial part of how Cloudflare serves billions of requests in the face of DDoS attacks. The tools it provides us are invaluable and useful, and a constant stream of contributions from...

IP addresses have historically been treated as stable identifiers for non-routing purposes such as for geolocation and security operations. Many operational and security mechanisms, such as blocklists, rate-limiting, and anomaly...

Every interaction on the Internet—including loading a web page, streaming a video, or making an API call—starts with a connection. These fundamental logical connections consist of a stream of packets flowing back and forth...

Representatives of the five RIRs propose RPKI Trust Anchor constraints – a draft RPKI protocol that binds each trust anchor to its rightful resources, enabling safe inter-RIR transfers and so closing a long-standing...

NVIDIA has announced that it is working with the U.S. Department of Energy’s national labs and the nation’s companies to build America’s AI infrastructure to support scientific discovery, economic growth The post NVIDIA and...

Waveshare MK20 is a multifunctional macro keyboard with twenty mechanical keys featuring 0.85-inch LCD keycaps. As an upgrade to the earlier MK10 model, it adds a 2.8-inch secondary display along with two control knobs. The...

Aisuru, the botnet responsible for a series of record-smashing distributed denial-of-service (DDoS) attacks this year, recently was overhauled to support a more low-key, lucrative and sustainable business: Renting hundreds of...

In the third quarter, we observed Internet disruptions with a wide variety of known causes, as well as several with no definitive or published cause. Once again, we unfortunately saw a number of government-directed shutdowns,...

On July 8, 2022, a massive outage at Rogers, one of Canada’s largest telecom providers, knocked out Internet and mobile services for over 12 million users. Why did this single event have such a catastrophic impact? And...

The world is in a race to build its first quantum computer capable of solving practical problems not feasible on even the largest conventional supercomputers. While the quantum computing paradigm promises many benefits, it also...