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Engineering News

Unmetered Mitigation: DDoS Protection Without Limits

This is the week of Cloudflare’s seventh birthday. It’s become a tradition for us to announce a series of products each day of this week and bring major new benefits to our customers. We’re beginning with one I’m especially proud of: Unmetered Mitigation. CC BY-SA 2.0 image by Vassilis Cloudflare runs one of the largest networks in the world. One of our key services is DDoS mitigation and we deflect a new DDoS attack aimed at our customers every three…

The Architecture That Made Unmetered Mitigation Possible

When building a DDoS mitigation service it’s incredibly tempting to think that the solution is scrubbing centers or scrubbing servers. I, too, thought that was a good idea in the beginning, but experience has shown that there are serious pitfalls to this approach. A scrubbing server is a dedicated machine that receives all network traffic destined for an IP address and attempts to filter good traffic from bad. Ideally, the scrubbing server will only forward non-DDoS packets to the Internet…

Meet Gatebot – a bot that allows us to sleep

In the past, we’ve spoken about how Cloudflare is architected to sustain the largest DDoS attacks. During traffic surges we spread the traffic across a very large number of edge servers. This architecture allows us to avoid having a single choke point because the traffic gets distributed externally across multiple datacenters and internally across multiple servers. We do that by employing Anycast and ECMP. We don’t use separate scrubbing boxes or specialized hardware – every one of our edge servers…

Virtual Income – Scam or Legit Software?

We have to start by doing a background examination of the meaning of Virtual Income. Now, binary options trading is a business model many people like to engage in because of the profits involved. As much as it has some risks to it, it cannot be compared to the joy derived from playing slots online, win real money and having that sort of entertainment. However, before you start trading binary options, you must have an account with one of the…

Engineers explore origami to create folding spacecraft

Some examples of origami designs at JPL. Engineers are exploring this ancient art form to create folding spacecraft. Credit: NASA/JPL-Caltech An ancient art form has taken on new shape at NASA’s Jet Propulsion Laboratory in Pasadena, California. Origami, the Japanese tradition of paper-folding, has inspired a number of unique spacecraft designs here. It’s little wonder that it fascinates NASA engineers: origami can seem deceptively simple, hiding complex math within its creases. Besides aesthetic beauty, it addresses a persistent problem…

NASA tests first 3-D printed rocket engine part made with two different alloys

An image from a microscope reveals how the two metals, copper alloy and Inconel, mix and interlock to form a strong bond created by the innovative 3-D printing process during manufacturing of the igniter prototype. Credit: NASA/UAH/Judy Schneider Engineers at NASA’s Marshall Space Flight Center in Huntsville, Alabama, tested NASA’s first 3-D printed rocket engine prototype part made of two different metal alloys through an innovative advanced manufacturing process. NASA has been making and evaluating durable 3-D printed rocket parts…

The Prospect of Space Prospecting

Isaac Asimov’s sci-fi story “Catch That Rabbit,” published in 1944, is set in an asteroid mine and portrays what might happen if formerly obedient robots decided to rebel.  These days, Asimov’s dream of space mining is a lot closer to reality, with several firms making definite plans to launch exploratory vehicles around 2020 and have full-scale mining up and running later in the decade.  But as an article in October’s Scientific American points out, the legal status of space mining…

Ultrafast 5G mobile broadband thanks to millimeter-wave band technology

Measurement equipment employed by Keysight Technologies on this project. Credit: © Keysight Technologies Denmark Aps / mmMAGIC The ideal of seamless mobile communications poses fundamental challenges to legacy networks that the new 5G communication networks currently under development need to solve. One such challenge is supporting the significant growth of traffic demands. Next-generation services such as mobile cloud services, gaming, social-networking applications and 3-D immersive applications require massive capacity and higher data rates than current 4G networks can sustain. Researchers…

Blockchain for Enterprise : Developer’s Perspective and Insights

Do you know that financial services sector has majorly driven the blockchain framework? Well, this general consciousness has made blockchain a potential game changer. We have been ardently following this technology and in our last post we discussed “Building Your Own Blockchain”. Keeping the legacy forward, in this post we will discuss the technology fundamentals in blockchain for the enterprise. Let’s have a quick recap for the 4 building blocks of any blockchain solution. Shared Ledger A shared digital ledger…

It took 66 million years, but California gets state dinosaur

It took about 66 million years, but California finally has a state dinosaur. Gov. Jerry Brown announced Saturday the signing of a bill making Augustynolophus (Aw-gus-tin-o-lo-fus) morrisi the official dinosaur of the Golden State. Fossilized remains of the duckbilled creature that lived anywhere from 100 to 66 million years ago have been found only in California. Several other states and Washington, D.C., also have official dinosaurs. California has more than 30 state insignia including a state lichen—lace…