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Docker Compose: From Development to Production

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The translation of the podcast transcription has been prepared in anticipation of the launch of the "Linux Administrator" course. Docker Compose is an amazing tool for creating a working environment for the stack used in your application. It allows you to define each component of your application using a clear and simple syntax in YAML files. With the advent of Docker Compose v3, these YAML files can be directly used in the production environment, […]

Pi-KVM — an open IP-KVM project on Raspberry Pi

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Despite the abundance of data almost everywhere, analytical databases are still quite exotic. They are poorly understood and even worse utilized effectively. Many continue to 'bite the bullet' with MySQL or PostgreSQL, which are designed for different scenarios, struggle with NoSQL, or overpay for commercial solutions. ClickHouse changes the game and significantly lowers the entry barrier to […]

Distributed Databases for the Enterprise

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The CAP theorem is a cornerstone of distributed systems theory. Naturally, debates surrounding it persist: its definitions are not canonical, and there is no strict proof... Nevertheless, firmly grounded in common sense™, we intuitively understand that the theorem is valid. The only unclear part is the meaning of the letter 'P'. When a cluster splits, it decides—this […]

Analysis of merge requests in GitLab using PVS-Studio for C#

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Do you love GitLab and hate errors? Want to improve the quality of your source code? Then you've come to the right place. Today we will explain how to set up the C# PVS-Studio analyzer for checking merge requests. Wishing everyone a unicorn mood and enjoyable reading. PVS-Studio is a tool for detecting bugs and potential vulnerabilities in source code written in C, C++, C#, and […]

Behind the Scenes: How Are Courses Created?

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A participant arrives at a course or intensive. They see neatly arranged tech support, carefully laid power cables, a chessboard order in the lecture hall, and bright images and diagrams on slides. The speakers present information with jokes and smiles, making it easy to follow along. The stands are set up, practical tasks fly off the fingers, though at times assistance from tech support may be needed. And there are also coffee breaks with […]

3. NGFW for small businesses. Wireless data transmission: WiFi and LTE

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Hello, esteemed readers of the TS Solution blog, we continue our series of articles for NGFW CheckPoint solutions in the SMB segment. For your convenience, you can familiarize yourself with the model range, study the specifications and capabilities in the first part, and then we suggest looking at unpacking and initial setup using the real equipment of Check Point 1590 in the second part. For those who are just getting acquainted with […]

1. NGFW for Small Businesses. New CheckPoint 1500 Security Gateway Line

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More than two years have passed since the publication of the article, and the 1400 series models have now been discontinued. It's time for changes and innovations, a task that CheckPoint aims to implement in the 1500 series. In this article, we will examine models designed to protect small offices or company branches, presenting technical specifications, delivery features (licensing, management schemes, and administration), and touching on […]

2. NGFW for small business. Unboxing and setup

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We continue our series of articles on working with the new SMB CheckPoint product line. In the first part, we described the features and capabilities of the new models, as well as management and administration methods. Today, we will examine the deployment scenario of the higher model in the series: CheckPoint 1590 NGFW. Here’s a brief summary of this part: Unpacking the hardware (description of components, physical and network connection). Initial device initialization. Initial configuration. […]

Manage network connections in Linux using the console utility nmcli

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Utilize all the capabilities of the NetworkManager network connection management tool in the Linux command line using the nmcli utility. The nmcli utility interacts directly with the API to access NetworkManager's functions. It was introduced in 2010 and has become an alternative way to configure network interfaces and connections for many users, although some still use ifconfig. Since nmcli is […]

What are the dangers of the MongoDB SSPL license for you?

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Reading the FAQ on the SSPL MongoDB license, it seems that there is nothing alarming in its change, unless you are a "big and cool cloud solutions provider." However, I have to disappoint you: the consequences for you will be much more serious and worse than you might think. Translating the image: What is the impact of the new license on applications built using MongoDB and […]

Installing the HAProxy load balancer on CentOS

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The translation of the article has been prepared ahead of the launch of the course "Linux Administrator. Virtualization and Clustering". Load balancing is a common solution for horizontally scaling web applications across multiple hosts while providing users with a single point of access to the service. HAProxy is one of the most popular open-source load balancing software that also ensures high availability and proxying functionality. […

There's a controller – no problem: how to easily maintain wireless network operation

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In 2019, the consulting firm Miercom conducted an independent technology assessment of Cisco Catalyst 9800 Series Wi-Fi 6 controllers. For this study, a testbed was assembled featuring controllers and Wi-Fi 6 access points from Cisco, and an evaluation of the technical solution was conducted in the following categories: Availability; Security; Automation. The results of the study are presented below. Since 2019, the functionality of Cisco controllers […]

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