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Instructions, guides, tech guides, tips, how-to articles, and tutorials with explanations on a wide range of topics in IT, technology, and communication

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Certbot installation and setup for automated Let's Encrypt SSL Certificate Management

Certbot installation and setup for automated Let's Encrypt SSL Certificate Management

News-Redaktion | 08.10.2026, 12:00

The transition to encrypted web traffic has become a standard requirement in modern server administration. Let’s Encrypt offers a free, automated, and open certificate authority (CA) that allows administrators to secure their domains at no cost. The most important tool for connecting to this CA is Certbot. This software agent automatically handles the issuance, installation, and renewal of SSL/TLS certificates.
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Guide Ubuntu Desktop Upgrade from 22.04 to 24.04 or Later (Guide)
07.10.2026, 09:05 • News-Redaktion

Ubuntu Desktop Upgrade from 22.04 to 24.04 or Later (Guide)

Among other things, Ubuntu offers an interactive upgrade process that allows users to upgrade to newer versions without having to perform a complete reinstallation of the system or manually reconfigure it. The p...

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Guide Symbolic Links and Hard Links in Linux and Ubuntu: A Guide to Symlinks
25.09.2026, 10:37 • News-Redaktion

Symbolic Links and Hard Links in Linux and Ubuntu: A Guide to Symlinks

In Linux, file linking is a fundamental mechanism that allows administrators and users to access a single file or directory from multiple locations within the file system. Although it may seem like a simple link...

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Guide GRUB bootloader configuration: A detailed guide to configuring the GRUB bootloader
23.09.2026, 10:44 • News-Redaktion

GRUB bootloader configuration: A detailed guide to configuring the GRUB bootloader

The Grand Unified Bootloader, commonly known as GRUB, serves as the primary bootloader for most Linux distributions. It is responsible for loading the kernel into memory and managing the transition from the syst...

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Guide Renaming files in Linux using the terminal is this quick
21.09.2026, 15:46 • News-Redaktion

Renaming files in Linux using the terminal is this quick

Linux distributions offer various methods for renaming files, designed for both users who prefer graphical interfaces and those who prefer to use the console. Renaming files in Linux is that simple....

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Guide Qwen3.8-Flash-Next 125B-MoE Model: Local Operation with Configuration Options
21.09.2026, 10:56 • Andreas Bunen

Qwen3.8-Flash-Next 125B-MoE Model: Local Operation with Configuration Options

The release of Qwen3.8-Flash-Next introduces a multimodal “Mixture-of-Experts” (MoE) model with 125 billion parameters, based on the Qwen4 architecture. This model is designed for reasoning and supports a contex...

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Guide Root password reset in Ubuntu Linux: Changing forgotten root password
17.09.2026, 10:51 • News-Redaktion

Root password reset in Ubuntu Linux: Changing forgotten root password

Root privileges are extremely important for performing critical system-level tasks in Ubuntu and, more generally, within the Linux ecosystem. If root access has been lost or the root password has been forgotten,...

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Guide dpkg-reconfigure on Debian and Ubuntu: Reconfiguring dpkg to solve problems
17.09.2026, 10:29 • News-Redaktion

dpkg-reconfigure on Debian and Ubuntu: Reconfiguring dpkg to solve problems

Managing installed software in Debian-based distributions, including Ubuntu, requires a method for modifying package settings without having to completely uninstall and reinstall the software. This is achieved b...

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