Administration Section
In one of our previous articles, we discussed the importance of two-factor authentication on corporate company portals. Last time, we demonstrated how to set up secure authentication in the IIS web server. In the comments, we were asked to write a guide for the most common web servers on Linux — nginx and Apache. You asked — we wrote. What do you need to get started? Any modern […]
Hello, Habrozhiteli! This book is suitable for any developer who wants to understand stream processing. Understanding distributed programming will help you learn Kafka and Kafka Streams more effectively. It would be great to know the Kafka framework itself, but it's not necessary: I will tell you everything you need. Experienced Kafka developers, as well as newcomers, will master the creation of interesting applications with this book […]
Hackers gained access to the main email server of the international company Deloitte. The administrator account of this server was protected only by a password. Independent Austrian researcher David Wind received a reward of $5,000 for discovering a vulnerability on the Google intranet login page. 91% of Russian companies hide facts about data breaches. Such news can be found almost every day […]
Email has firmly established itself as the standard for business communication. Due to the high cost-effectiveness of emails, along with several features related to text quoting and attachment handling, emails are the ideal solution for document exchange and polite business interactions. These same characteristics are why emails are so widely embraced […]
We continue to analyze the tasks of the Network module of the WorldSkills championship in the specialty 'Network and System Administration'. This article will cover the following tasks: On ALL devices, create virtual interfaces, subinterfaces, and loopback interfaces. Assign IP addresses according to the topology. Enable the SLAAC mechanism for issuing IPv6 addresses in the MNG network on router RTR1's interface; On virtual interfaces in VLAN 100 […]
Hello everyone! Today I want to talk about the cloud solution for vulnerability scanning and analysis, Qualys Vulnerability Management, on which one of our services is built. Below, I will show how the scanning is organized and what information about vulnerabilities can be gleaned from it. What can be scanned: External services. To scan services accessible via the Internet, the client provides us with their IP addresses […]
Before the Web could do anything, HyperCard did everything. Somewhere around 1988, my landlady struck a deal with me. She would buy a Macintosh computer, I would buy an external hard drive, and we would leave this system in the living room to share. For the most part, she used the computer, as I was doing calculations on an IBM 286 […]
We decided to talk about projects (Kata Containers, Zuul, FATE, and CommunityBridge) that recently joined two major funds and the directions in which they are developing. Photo — Alex Holyoake — Unsplash How is the OpenStack Foundation doing? The OpenStack Foundation (OSF) was founded in 2012 to support the development of the open cloud platform OpenStack. And the organization quickly became involved […]
Last week at the Intel Data Center Tech Summit, the company officially introduced Optane memory based on 3D XPoint modules in DIMM format, which has been named Optane DC Persistent Memory (please do not confuse it with Intel Optane Memory — the consumer line of caching drives). The memory modules come in sizes of 128, 256, or 512 GB, with pinouts conforming to the DIMM standard, […]
Last summer, we announced in the Optane blog the Optane DC Persistent Memory — Optane memory based on 3D XPoint modules in DIMM format. As stated then, the delivery of Optane modules began in the second quarter of 2019, and by that time, enough information had accumulated that was missing during the announcement. So, beneath the cut […]
Hello, Habr! At Badoo, we are actively working on PHP performance, as we have a large system built on this language and performance is a matter of cost savings. Over ten years ago, we created PHP-FPM, which initially started as a set of patches for PHP but later became part of the official distribution. In recent years, PHP has significantly […]
Developing high-load projects in any language requires a special approach and the use of specific tools, but when it comes to PHP applications, the situation can escalate to the point where one has to develop, for example, a custom application server. This note will address the familiar pain of distributed session storage and data caching in memcached, and how […]