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Category: Telecommunications Engineering

The TCP Tortoise: Optimizations for Emerging Markets

Serving fast pages is a core aspiration at LinkedIn. As part of this initiative, we continuously experiment and study the various layers of our stack and identify optimizations to ensure that we use the most optimal protocols and configurations at every layer. As LinkedIn migrated to serving its pages on HTTP/2 earlier this year, it became imperative that we identify and use the most optimal transport layer strategy for our users’ network. Being a Transmission Control Protocol-centric (TCP) infrastructure, we…

Hey do you have the time? – Wealthfront Engineering Blog

What it means to set your clock over cross-country latencies Have you ever wondered what process allows your phone to get the time after it has been dead for hours, or keeps all your devices reporting consistent times across versions and operating systems? The answer is a commonly used but often ignored protocol called Network Time Protocol (NTP), which was developed to allow consistent timekeeping between network-connected computers. This protocol has grown up with the internet: the first Request for…

How to Remain Secure While Using Public Wi-Fi

We are stuck to our smartphones the whole day, and businesses are taking advantage of this addiction by offering free public Wi-Fi. It is now being offered almost everywhere and has become a way to attract more people to your business. It has worked wonders for owners all around the globe as they have started to get more and more customers, which comes as no surprise. People are addicted to their smartphones and internet, and when they are getting it…

The Languages Which Almost Became CSS

The history of all the languages which almost became CSS and the development of the styled web. When Tim Berners-Lee announced HTML in 1991 there was no method of styling pages. How a given HTML tag was rendered was determined by the browser, often with significant input from the user’s preferences. To many, it seemed like a good idea to create a standard way for pages to ‘suggest’ how they might prefer to be rendered stylistically. This was adapted from…

What’s in your rum? Flavor scientists create a lexicon of terms to describe nuances of popular beverage — ScienceDaily

Aficionados use words like “oaky” to describe some wines, or “hoppy” when talking about certain beers. But for rum — a product with over 1,000 different varieties — putting the words together to describe what imbibers are smelling and tasting is a bit more difficult. Consequently, researchers at the University of Illinois were interested in creating a rum flavor lexicon, but needed to find a way around the biggest problem with tasting rum — sensory fatigue. Having a set of…

Starting the Avalanche – Netflix TechBlog – Medium

Application DDoS In Microservice Architectures By Scott Behrens and Bryan Payne Introduction We’d like to introduce you to one of the most devastating ways to cause service instability in modern micro-service architectures: application DDoS. A specially crafted application DDoS attack can cause cascading system failures often for a fraction of the resources needed to conduct a more traditional DDoS attack. This is due to the complex, interconnected relationships between applications. Traditional DDoS attacks focus on exhausting system resources at the…

Improve Your Communication using WiFi Calling

With so many features on our smartphones, we often forget what these devices were originally intended to do — make calls. Of course, as much time as we spend taking photos, browsing social media, shopping, and playing games on our phones, we still expect to be able to make calls without any problems. Although rare, many items can interfere with the features on any phone, no matter what network you are using. Find out how Wi-Fi calling can help improve…

Using AI for new visual storytelling techniques in VR | Engineering Blog | Facebook Code

Artificial intelligence is becoming an increasingly important tool within the artistic community to foster visual creativity. Two frequently used techniques are generative adversarial networks (GANs), which can generate visually realistic images, and style transfer, which can turn photos or videos into works of art by applying the artistic qualities of one image style — such as a painting — to other images and videos. At Facebook AI Research (FAIR), we wanted to investigate further how artists and professionals typically trained…

Toward additive manufacturing

A scientist using a 3D printer at the ARTC. Credit: A*STAR Advanced Remanufacturing and Technology Centre Automation, robotics, advanced computer-aided design, sensing and diagnostic technologies have revolutionized the modern factory, allowing the building of complex products, from microchips to cars and even airplanes, with unprecedented cost-efficiency, scale and reliability. The modern factory represents the pinnacle of mass production technology, refined over a hundred years or more, to produce identical items for mass consumption at the lowest cost. Every manufacturing line…

LinkedIn Passes IPv6 Milestone | LinkedIn Engineering

Earlier this month, and for the first time in our company’s history, more than 50% of pages on LinkedIn were accessed over IPv6 from mobile devices in the U.S. This is another step in the internet community’s long migration to IPv6 from IPv4, which we have written about previously. Since we enabled IPv6 on our mail servers in 2013 and then on our web site in 2014, we have seen increased growth of our external IPv6 traffic. We are currently…