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Bank outsorced their projects many contractors. "Vmesniki" write code, then transmit the results in a not very comfortable way. Specifically, the process was as follows: they passed on the project, which has been functional tests them, and then tested already inside Bank perimeter to the integration, load and so on. Often discovered that the tests feil. Then everything went back to the external developer. As you can guess, this meant a big time bug fixes. the Bank has decided that you can and should drag the entire pipeline to his "under the wing" of commits before release. Everything to be uniform and under the control of the teams responsible for the product in the Bank. That is, as if the outside contractor just worked in a nearby office room. On the...

Emergency mode (also referred to as KVM) that allows you to connect without RDP to the VPS directly from the hypervisor level, saves 15-20 minutes a week. the First and the main thing — not to piss people off. Worldwide support is divided into line and staff first must try the typical solutions. If the task stands out beyond them — to convey the second line. So, among the administrators VDS quite often come across people who know how to think. Unlike many other supports. Well, at least much more often. And they are well structured a support ticket immediately describing all that is needed. If the first line of "eye zamylivaetsya" and they happen in response to this ask on and off — it was a fiasco. the Task is very simple: to support our VPN hosting is...

Advanced Gun System (left) is designed as a replacement for the 16-inch guns of the battleships (on the right). If you don't count managed by GPS shells, the digital technology of fire control system AGS perform the same task that the Rangekeeper Mark 8 battleship "Iowa", only have less weight and work with them less people. the Newest destroyer "type of Zumwalt" (Zumwalt), currently undergoing acceptance tests on Board the new type of naval artillery: the Advanced Gun System (AGS). The automated AGS can fire up to 10 rounds of high accuracy with a rocket acceleration in a minute at targets at ranges of 100 miles. These projectiles use GPS and inertial guidance system to improve accuracy of the gun to the circumference margin of error of 50 meters (164...

Go on a RAID? No, we do not mistake. Clans around frameworks, battles for complex technical issues, gank on the opponent's territory, the RAID in the comments — what is not typical atmosphere of RPG? Well and classics of the genre — the hero's journey. In the first phase, you choose a class (e.g., the developer) and the initial abilities (e.g., Python or C++). Then pumped by developing the basic skills (June-middle), adding to the initial set of new skills, changing the talent trees (DevOps, product). The higher the level, the more directions and more possibilities to customize the build. Open quests (courses, projects, hackathons), other locations (new technologies), there are wipes (and who had no failures). Well, all sorts of pots, a flask and elixirs...

Family history my husband and I have been doing for ten years. Accumulated a large base of black and white photographs on each of the hundreds of ancestors and their relatives. The most important thing on these photos is, of course, the faces of the people. To share with family and publish to the Internet, I want to have these pictures in good quality, find new, interesting details. a Revolution in this area for us in recent months has been the emergence of a number of programs and services in the aggregate and when used correctly, allow anyone to easily retouch and color, old family photos. The result is realistic, clear, beautiful shots of the old, grainy, often blurred and damaged photos. In most cases, does not require the use of photoshop. I Want to...

The people responsible for the missile launch, there's an old joke: if the rocket is ready to launch, the weather will force you to wait a day. But why is NASA, the 45th space wing and Space forces of the United States, their Director of security and all associated with running the service so much care about the weather? What's the difference if it's raining 18 km from the launch pad, even in the rules says that it should not be more than 18.5 km away from her? Isn't this far enough? the Answers to these questions are in the history of the missile launch, and sometimes we have internalized these lessons in the result of painful and even fatal accidents. It was then that we learned what happens when responsible for the launch of don't listen to the weather...

Approx. transl.: Jaana Dogan — experienced engineer from Google, which currently deals with issues of observability of production services of the company, written in Go. In this article, gained a lot of popularity among English-speaking audiences, she is 17 points gathered important technical details for the DBMS (and sometimes distributed systems in General) that it is useful to consider developers of large/demanding applications. the Vast majority of computer systems to track their condition and therefore need some storage. I accumulate knowledge about databases for a long time, along the way making mistakes in the design that led to data loss and outages. In systems that process large amounts of information, databases lie at the heart of the system...

I am a representative of a micro business, which makes software for the commercial customers from the scientific sphere. Quarantine and forced isolation 2020 made me look for customers in the public sector, and for that you have to get into the national Registry. To do this, you need to apply according to the rules of Government Resolution No. 1236. The decision on inclusion takes the Ministry of communications. As it turned out, in practice, the experts of the Ministry are guided by a completely different document — methodical recommendations from CCIT, the existence of which as a developer, I do not even know. This document expressly forbids the use of components of software with the GPL - and MPL-license. The paradox is that under the GPL and published...

Dear readers, my name is Felix Harutyunyan. I am a student, a professional violinist. In this article I want to share with You an excerpt from my presentation that I presented at the University of music and theatre of Graz on the subject of applied acoustics. let us Consider the theoretical aspects of the conversion of the analog (audio) signal to digital. the Article will not be comprehensive, but the text will be a hyperlink for further studying the topic. What is the difference between digital audio and analog? Analog (or continuous) signal is described by a continuous function of time, i.e. Read more →

I Represent to your attention — one of the possible embodiments of a pretty fun reception, to create a realistic effect of turning pages. Demo & documentation Github a Similar effect I implemented according to a long time, even at the University and in Delphi. It turned out quite well, though the time I spent then very much. Now — during the isolation, it was interesting to implement something like that in JS, for PC and mobile devices. to be honest, I'm not sure about the practicality of this effect, and I think that in most cases there is nothing better than a simple change of images without any animation. But it is quite possible to use, for example on sites restaurants to publish menus (but the main thing — that would be next duplicated the link!). all...

In search of modern methods and tools that enable us with any degree of certainty that the web site is protected from future hacker attacks (that we all, no one there is no doubt? And if they did not exist, it is only a matter of time), was found recommendations in this article. This small but important list of concrete actions that should be performed each with its own web resource, if the company's reputation, security, web resources and customer data – these are not empty words for you. Read more →

Hi, Habr! I represent to your attention the analysis of the article "EfficientDet: Scalable and Efficient Object Detection" author Mingxing Tan, Ruoming Pang, Quoc V. Le. In recent years there has been enormous progress towards a more accurate detection of objects at the same time modern object detectors are also becoming more expensive. The cost of computing processes and expensive calculations limit their deployment in many real-world applications such as robotics and cars with the autopilot, where the size of the model and the delay is very limited. Given these limited resources of the real world, the model performance is becoming more important for object detection. Had a lot of previous work aimed at the development of more effective architectures...

Because we are not satisfied with the speed and reliability of the original implementation in Ruby, in the last few years we have been gradually taken out of the critical functionality of our Rails monolith GitHub.com and rewrote some of the code on the Go. For example, on Github Satellite in the past year, we have announced — and implemented — ability "more controlled" authorization using the service authzd. Work with authzd was very interesting and important mission for us because it was our first service to Go to work with reading data from MySQL databases for production during a web request. We have had experience of the deployment of the other running MySQL services on the Go, but they were either internal oversight services (our cluster search engine...

Today, every day running into some kind of webinar or online conference. Udalenku go to the schools and universities, big corporations are hastily rethinking their flagship events online (like the two-day Microsoft Build), the JUG EN Group online will last several weeks. The industry captured by rapid innovation. However, the level of the average of the webinar on the Internet is still extremely bad. Probably, any reasonable person for once in your life wondered what kind of Orgy? Why am I part of this? But if that's where the money is paid, it is insulting to tears. I have the feeling that progress is not there and never was. It would seem, in the court 2020, at any computer store are cool Webcams and phones, filled with the wonders of computer photo. You...

Russia's 16 million schoolchildren, more than a million teachers (of which about 700 thousand as of use online tools), and 40 thousand schools. In mid-March, thousands of schools temporarily closed the doors and officially moved in distance education. After spring break, millions of people were forced to urgently adapt to the education on remote. The transition to online was painful. Economou become things like "take a picture of the homework, done in a normal notebook, and then the teacher will understand." In the end, the teachers in the evening shoveled photos often turned and adjusted the brightness of the picture to something to be seen, printed, checked, sent their photos already with the results of the test... and graded them in the e-zine. When we...