Directory of RSS feeds
Statistics

RSS feeds in the directory: 2799

Added today: 0

Added yesterday: 0

Hi-Tech / Other

Habrahabr / Interesting / topical publications

Interesting publishing of thematic hubs on habrahabr

Other RSS feeds of this site

The best publications per day

Found 2978 items

Hello Everyone, I want to share the result of reflection on the topic — what would be a modern web app. As an example, consider designing a Bulletin Board for comics. In a sense the product in question is designed for an audience of geeks and their sympathizers that allows you to show the flexibility in the interface. In the technical component, on the contrary, need attention to detail. the truth is, I don't know anything about comics, but love flea markets, especially in the forum format, which was popular in zero. Hence, the assumption (probably false), from which flows the subsequent findings, only one — the main type of interaction with the app — view, secondary — placement of announcements and discussion. Our goal is to create simple apps without...

"We had to judge candidates not by what they were, and who they might become." In 2005, I had a hand to the base of Y Combinator, the first "accelerator". Today there are hundreds of them worldwide, but in 2005, what we did was so unusual that most people in Silicon valley considered us negligible. Y Combinator began the same as most other startups: with the assumption that our product people need. In the end, it turned out that they really needed it, and we grew and grew. To date, we have financed 1867 startups totaling more than $ 100 billion. So, since I had to go through that type of a startup that many of you hope, I want to tell you my own story. If you have heard of me only through the media, you might get the impression that my contribution to Y...

OpenVPN, like many in this word. Multi-platform, customizable, free VPN server, open source, which is actually the standard "defacto" access to internal corporate networks. Most administrators use it with default settings or with standard configuration is widely described in various HOW-TO. But is OpenVPN simple as it seems at first glance? In this article we will discuss the hidden inner mechanisms of OpenVPN that radically change the idea of its possibilities. Read more →

Good day, habrovany. Received goal is to deploy fault-tolerant High Available storage on the media pacamaker + drbd (dual primary mode) + clvmd + ctdb, which will be mounted on the server. I say that with all these tools I have encountered for the first time and I will be glad to criticism and additions\corrections. Online instructions specifically on this bundle or not, or the information is outdated. This working at the moment, but there is one problem, which I hope to find soon. All actions should be done on both nodes unless otherwise specified. Read more →

TL;DR: GitHub://PastorGL/AQLSelectEx. One day, not in the cold, but winter time, specifically a couple of months ago for a project I'm working on (something based on Geospatial Big Data), required a fast NoSQL / Key-Value store. the Terabytes of source code we are quite successfully progesive with Apache Spark, but hlopoty to ridiculous volume (only millions of records) the end result of the calculations need to be stored somewhere. And very preferably stored so that it could be associated with each result row (this single digit) metadata (but quite a lot of them) just to find and give out. And that's what happened....

If in most cases, when you get a new task, you think more about the possibilities to do it at any cost, instead of looking for obstacles and reasons why it can't be done, then you, in my understanding, active person. While others think that this is impossible, are you still looking for opportunities and find them. But towards finding and implementing decisions in life you can create tension between people. And keep this in mind in pursuit of goals. And it's not about overcoming walls, and finding compromises that work solutions and sync with other people. There is a range of features, which can create tensions and this is under the cut. Read more →

Referring to the need to conserve, January 11 company SpaceX announced the staff reduction of approximately 10% from the current 6,000 employees. On the reduction announced in the email to employees from the President Gwynn Shotwell, which was made available to the LA Times. "This is a very difficult but necessary decision," she said. "to continue to service customers and succeed in the development of interplanetary spacecraft, and the global space of the Internet, SpaceX should be more compact the company, the statement reads. — Any of these events, even when they were conducted separately, bankrupted others. This means that we have to part with some talented and hard-working members of our team." the illustration: January 11, Elon Musk has published the...

Third part DJI Phantom Drone Dozens of companies competed, creating the first commercially successful drone designed for relaxation and entertainment. The race was won by a Chinese engineer, more recently, the former teen Flying machine: the Phantom from DJI was equipped with a suspension specifically designed for mounting action Cam GoPro the Phantom from DJI could boast of remarkable engineering solutions, but if engineering and marketing of this little flyer did not support each other, DJI would never have soared to the top of the market of commercial drones. In 2005 or so, there were hundreds of companies able to participate in the race for the commercialization of drones; the race involved a couple of dozen. And yet somehow one guy from China, barely...

Long ago, in 2014, I made a small utility to overtake C#-ViewModel in the TypeScript code. It saved me a lot of time and nerves. And now, in September 2015 I decided to draw up its "experiments on the knee" in some kind of digestible form and pour them on GitHub. Thus began my amateurish participation in the development of open-source. As time went on. And so, yesterday in the repository with this project, finally, there was the jubilee, the big commit. In connection with this momentous occasion, I would like to share my amateurish experience about what will encounter, if you decide to develop something "for the good of the industry". I will present some numbers, I will tell some cool stories, and share experiences how it feels to write and maintain open...

If you are also running a lot of operations to change the DB schema, the service may not work correctly on the record. Developed by Vladimir Kolasinski explained what operations in PostgreSQL require long locks and how the team Yandex.Connect provides almost one hundred percent availability of the service to record during the execution of such operations. In addition, you will learn about the library for Django that aims to automate part of these processes. we Have a large load, thousands of RPS, and easy to a few minutes, not to mention more time is unacceptable. Need migration occurs transparently to the user. But such pressure has not come up at four in the morning, something to roll when there is no load, and again go to bed because the load goes on...

Another day began, as befits a winter day on a short week. In task Manager poured the classical problem — "yesterday I sent a letter to Vasily Ivanovich in sports lottery, instead of Ivan the Lotto-million, where he wrote anything obscene about Vasily Ivanovich, do so to the letter read" or "we're in the branch in the past year, optimized the system, is the administrator hired the son of the best friend of the Director, for which we each Director got the contract, only his son has lost our database, along with a new SSD drive, bought cheaply, do us good as it was." I have one ear listening to video about career growth, while others — coming through the thin plasterboard walls the noise from effective management of type owl like all of a sudden I %messenger%...

Every miracle has to find his explanation, otherwise it is just unbearable... K. Capek I almost never touch in their articles of things that are commonly described and easily accessible, for example macro - and microelement composition of fruits/vegetables. But banana decided to make an exception. Banana is high in potassium! Pick up any middle of the night and ask, what good is there in a banana — get the answer "potassium for the heart" (I exaggerate, but not far from the truth). And potassium, it element is not easy, "with a hint of radioactive...". In General, to know so great the radioactivity of bananas and so if it is terrible — go under the cat. p.s. the note "by request..." Read more →

This news is published on The Next Web, marked: "due to errors in planning, we published the news a day earlier of the embargo on disclosure. The feature still is not running, it will tell you officially tomorrow. When this happens, we will update the post with the new official announcement". And even there's a great thread in Twitter: it is Clear that the person wrote it with a trembling hand — just as I'm writing this with trembling hands translation. Fake it? No. Have official confirmation via Twitter GitHub, so there's no turning back. Feature is explicitly rolled out in a hurry, still on the website is not fixed some texts relating to tariffs, and attempt to downgradet plan meets such dangerous-looking message: In General, stocking up on popcorn...

Hello! My name is Gregory and I am the founder CGDevs. Mathematics – a very cool tool for developing games. But if we say, without an understanding of vectors and matrices to do in principle difficult, the algorithms of triangulations not as a mandatory thing, but they solved a sufficiently large number of interesting problems. Today I would like to talk about quite an important tool in computational geometry such as triangulation and their application in the gaming industry. In addition, I wrote a port and some great wrapper libraries Triangle.Net for Unity. If you're interested – welcome under kat. Link to github is attached. Read more →

When Philips closed the project of the digital compact cassette in 1996, she did the right thing. It is not that digital tape is lost to digital MiniDisc. Rather, both formats were not popular: on the one hand, they interfered with cheap and familiar audio cassette, Internet and music, devoid of media. Last week I spoke about the minidisk in their natural habitat — when the Internet and MP3 was not serious competition format. MiniDisc was too expensive to become mainstream, but gained recognition among professionals, enthusiasts and just poor people. Today I will talk about the MiniDisc in the era of MP3 players. Physical media with all its limitations, by definition, was not able to compete with portable devices based on hard disk or flash memory...