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From time to Time readers of our articles on the inspection of open-source projects notice that the static code analyzer PVS-Studio identifies a large percentage of the errors that are minor or do not affect the operation of the application. It is really so. Most of the important bugs have been fixed thanks to the manual testing, user feedback and other expensive methods. At the same time, many of these errors could be found at the stage of writing the code and fix with minimal loss of time, reputation and money. In this article will provide a few examples of real issues that would be immediately fixed if the authors of the projects to use static code analysis. Read more →

I joined the Erlang community about 10 years ago, in the middle of the first phase of hype. We were told that Erlang is the future of competition and overlap. Implement them in that language easier and faster way, and you get free distribution. At that time the future seemed unthinkable. Virtual machine recently got SMP support, but to really use all the CPUs that had to run on a single computer multiple virtual machines. I want to reflect on the past decade. In this article I will talk about the phases of the hype in relation to Erlang, on the stairs ideas in language and about its possible influence on the spread of language, about what changes I've been through these 10 years. And in conclusion, will share his thoughts about what Erlang has yet to bring...

Hi! We are "Hosting technology" and 5 years ago started VDSina first vds hosting created specifically for developers. We strive to make it easy as DigitalOcean, but with Russian support, payment methods and servers in Russia. But DigitalOcean is not only a reliable price and service. Soft ISPsystem was the rope that bound our arms on the way to a cool service. Three years ago, we used billing system is the billing system and server control panel VMmanager and quickly realized that to provide good service without my panel is almost impossible. And here's why

There is an interesting problem to help solve that only you can. In short: in August in St. Petersburg for TechTrain comes Richard Stallman, and he doesn't like to live in hotels. You have the unique opportunity to shelter at home for a couple of days the father of all Free Software, and under the cut we will tell you how. a Little historical background. Dr. Richard Matthew Stallman created the free software movement in 1983 and started developing the GNU operating system in 1984. GNU really free: anyone has the right to copy and redistribute it, making changes if you wish. The GNU/Linux system — basically, the operating system GNU with the Linux kernel Linus Torvalds — is now used on tens of millions of computers, their number is difficult to calculate...

Game console of the past do not lose their popularity — they are still widely used by gamers. If not the original device, the emulators. One would assume that there are no secrets in relation to classic consoles left. But no, sometimes there are unexpected discoveries. Recently on eBay there was a game in 1984 for the Atari 2600 called Extra Terrestrials. It was released at the end of the commercial popularity of the game console. The vast majority of players so far nothing about it never heard and never seen. Read more →

At a certain stage of maturity of information security, many companies are starting to think about how to obtain and use information about actual cyber threats. Depending on the specific industry of the organization, interest can cause different types of threats. Approach to the use of such information was formed by Lockheed Martin in the material Intelligence Driven Defence. the Benefit now of IB services there are lots of sources to obtain them and even separate class of solutions – Threat Intelligence Platform (TIP), which allows you to manage the processes of their production, generation, and integration in the remedies. For us as a center for monitoring and responding to incidents it is essential that data on cyber threats that we receive and which...

A Few days ago there was a conference in Hydra. The guys from JUG.ru Group invited speakers dreams (Leslie Lemport! Cliff Click! Martin Kleppmann!) and devoted two days to the distributed systems and computing. The contour was one of the three partners of the conference. We communicated on the stand and talked about our distributed hranilki, played bingo, solved puzzles. This is a post with a tutorial on the stand of the Contour from the author of the text. Who was Hydra — this is your opportunity to remember a good impression, who was not — a chance to stretch their brains big O-notation. there were even members who reviewed the flip charts on the slides to record the decision. I'm not kidding — they passed the test here's a ream of paper is: there were...

There is large variation in the skill levels of the developers. And what is called "seniornet" often says nothing about the actual capabilities of the programmer. What makes some developers are objectively better than others? What makes them stand out from the gray crowd? If the programmer has five, ten or even fifteen years "practical experience" is not necessarily guarantee that it is efficient and productive seniors. Actually — that doesn't even mean that it might be called so. of Course, there are accidents, which make for the successful seniors, who are usually middle-aged, fixed a bad reputation. But also for young seniors, too, not easier. However, there are certain traits and knowledge that are common to programmers, seniors. Not to say that real...

The Federal trade Commission (FTC) wrote a Facebook record fine ever assigned a technical company that breached a contract with FTC on privacy issues. Specifically, this penalty is 200 times more than the previous record. on Friday, the FTC voted with a score of 3-2 to approve a settlement with Facebook about $5 billion. It will put an end to the investigation into the practices of privacy, though threatened by new rules of state supervision over the company. the Settlement with the FTC will cost the Internet giant in the amount of monthly income. The market favorably reacted to the news on Friday, shares of Facebook rose 1.8%. Experts fear that Facebook will pay a fine and calm will continue in the same spirit. Read more →

What good is the muscle guy in the it field different from the usual? No, not the fact that he at any time from memory call the number of messages that the Manager Igor sent yesterday a colleague of Mary. A good security guy is trying to identify possible violations in advance and to catch them in real time, and do his utmost to avoid the continuation of the incident. Control system security events (SIEM, Security information and event management) significantly facilitates the task of rapid fixation and blocking any attempts of violations. Read more →

Amazon has not always been the king of online shopping. In the fall of 2004, the company Jeff Bezos is still mostly sold books and DVDs. It in many ways was precipitated by the more successful competitors. Large retailers like Best Buy have grown at 17% a year, eBay was the main sales on the Internet, and a large store of Toys R Us sued Amazon in court, that he did not sell other toys on your website. the holiday season, from November to January on the Amazon website there were constant failures, which climbed a pretty big noise among buyers and the press. The price of the company reached $18 billion, but if you wanted to invest in it, any competent analyst would tell you that the future is exactly for eBay – younger company, which by that time was worth...

Today, the term "Zen" is associated solely with spiritual practices, but in reality is a much broader concept. If you explain it briefly, then get something like "the practice of complete awareness of the present". most Likely, each of us felt it in one way or another. Remember how once you were so passionate about the work on the project, spent over it half a day or half the night, and did not even notice how time flew. It was a real work of Zen. As you can see a very useful process which brings a lot of advantages. But is it possible to learn how to catch Zen every time you sit at your workplace? Experienced freelancers in this respect there is some practical advice. Read more →

"national center of Informatization" (of NCI, a subsidiary of the state Corporation "rostec") has estimated the possible costs of facilities in all regions of the Russian Federation infrastructure the Internet of things. We are talking about wireless networks narrow-band Internet of things standards groups LPWAN. the Calculations are set out in the draft roadmap for the development of wireless communication technologies. The project was prepared by the NCI in the framework of the implementation of the Federal project "Digital technologies" the national program "Digital economy" activities. As it turned out, the coverage of most Russian cities IoT networks will cost 35-50 billion rubles. The study's authors believe that part of the cost will take over the...

Needed an oven for baking polymer clay. After a long search the choice fell on the electric oven for the kitchen "CEDAR". With a capacity of 600 watts, with a maximum temperature of 250 degrees, without controller. For the first time it was installed and thermo-mechanical regulator as the temperature required in the range of 100-130 degrees. But the problem lies in the fact that the furnace is very large acceleration(after disconnecting the heater temperature continued to rise another 20-50 degrees), and the regulator has a very large range of on and off. That is, setting the temperature to 130 degrees I had a range of 100 to 160 degrees, which is not valid. After several months of analysis of the principles of work with the Arduino IDE and C++ was born a...

Hello Habr! 14/01/2020 approaching and this date marks the end of extended support for Windows Server 2008 R2, and if you still use Windows Server 2008 R2, you should think about migrating to a more current platform. Under the cut is a little comparison of resources consumed old and new platforms Windows Server role RDSH. Primarily I was interested in the opportunity to continue to use an existing HP server G6/G7 running VMware Vsphere 5.5. Information about Windows Server Lifecycle is available at this link Search the Product Lifecycle. Read more →