It-Theory

All posts under category "It-Theory"

20 posts total

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System Log in Linux: Syslog and Journald

Today, a theoretical note🗒️. Let's talk about the system log in Linux, find out who syslog and journald are, and how they differ + briefly about their advantages and disadvantages. It'll be informative😉.

2025.03.07

7 minute

IT theory

#linux #systemd #journald #rsyslog #glossary

Terminal Multiplexer

Today in the Linux user's glossary🐧 terminal multiplexer - a tool that is very often used in the process of administering Linux systems 🧑‍💻.

#tmux #terminal #glossary

Configuration Management System

Today in the Linux user's glossary🐧 the term is - configuration management systems. These systems have long been an integral part of the IT infrastructure administration process🧑‍💻.

What Are Monitoring Systems in IT?

In this note we'll talk about what types of monitoring systems exist, and as usual, we'll look at their most popular implementations today.

VPN — Technology for Ensuring Secure Network Interaction

Today we'll break down the concept of a virtual private network, better known as VPN. What it is, what types exist, and we'll also talk a bit about popular implementations of this network technology.

#cybersecurity #wireguard #openconnect #openvpn #glossary

Containerization — OS-Level Virtualization Technology

Today in the Linux user's glossary, a popular term nowadays - containerization. What it is, what implementations exist, and briefly about the advantages and disadvantages.

2024.03.01

3 minute

IT theory

#docker #podman #lxc #glossary

LAMP/LEMP — Server Software Stack for Working with Web Applications

Today a new term is added to our Linux user's glossary - LAMP or LEMP server.

2023.09.14

2 minute

IT theory

#linux #server #glossary

Hypervisor — Virtualization Software

Today our Linux user's glossary grows with a fairly popular term today - hypervisor.

POSIX (Portable Operating System Interface)

We continue growing the Linux user's glossary. Today we'll talk about the term POSIX.

2023.05.24

3 minute

IT theory

#linux #unix #glossary

GTK and Qt Frameworks

Most of the applications existing today for the GNU/Linux OS are written using the GTK and Qt graphical libraries.

Init System

Do you know what happens to a computer after you press the power button? In the case of Linux, after startup, specific systems are launched in a certain order.

Unix Operating System

The Unix operating system is considered one of the most important in the history of computer OS development.

Virtual Machine

What is a "virtual machine"?

Desktop Environment

Here are a few screenshots of desktops: Archcraft, Linux Mint, MX Linux, CutefishOS, KDE Neon, Windows 10, Arch Linux.

2022.02.05

1 minute

IT theory

#linux #desktop #aesthetics #glossary

Terminal Emulator

Recently I wrote a note about such an operating system management tool as the command interpreter, access to which, in modern operating systems, can be obtained using a graphical program - a terminal emulator.

Software Repository

There are various types of repositories. For example, repositories of programs written in a single programming language, or intended for a specific platform.

Command Interpreter or Shell

I'm sure many are familiar with the command line in Windows systems - cmd.exe, as well as its more modern variation - Power shell.

Linux Distribution

Hello! There is a great multitude of Linux distributions. Such a number is primarily due to the philosophy and principles of open software, which I wrote about earlier.

Proprietary or Closed Software

Hello! A vivid example of such software is the Windows operating system. Its source code is closed, protected by copyright, and this OS is distributed under a commercial license.

Open Source Software

Open software or software with open source code, also known as Open source, is a term that has increasingly appeared on internet resource pages in recent times.