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Networking is one of the fundamental aspects of working with containers in Docker. Using Docker Compose, you can easily connect multiple containers and manage complex applications comprised of several services. In this article, we will explore how to connect two containers using Docker Compose effectively. By the end, you will have a clear understanding of how to define networks in your configuration and enable seamless communication between your services.

Traversing a directory tree can be a daunting task, especially when dealing with extensive file systems. Fortunately, Bash scripting serves as an efficient way to automate this process. In this article, we will explore how to create a Bash script that can recursively traverse a directory tree and perform specified actions on each file or folder it encounters.

When using Docker to create portable and easy reproducible development environments, we need to found a way to make changes to our codebase, immediately effective inside containers, without the need to re-build them each time. A possible solution consists into mounting host directories directly inside containers; this, however, requires breaking containers isolation and portability, since they become dependant on the host directory structure. To solve this problem, we can use docker-compose watch.

In today’s cloud-native and microservices-oriented world, Docker has become a cornerstone for developing, shipping, and running applications anywhere. However, with great flexibility comes great responsibility, especially regarding security. This article delves into various tools for scanning Docker container vulnerabilities, ensuring that your applications remain secure and compliant.

Hashing files is a critical process in the realm of data integrity and security. In this article, we will discuss how to hash a specific file, linuxconfig.txt, using various hashing algorithms available in Linux. Additionally, we will explore how to restore the file based on its hash, ensuring you can verify its integrity over time.

ZFS (Zettabyte File System) is a robust file system designed to manage large amounts of data while ensuring integrity, scalability, and advanced features like snapshots, compression, and data deduplication. This guide will take you through the steps required to install and enable ZFS on Debian or Ubuntu.

The modern workspace often demands hours of productivity from users, but what happens when you step away from your computer? To help manage power consumption and increase security, it’s useful to create a Bash script that automatically suspends the system after a period of user inactivity. This article will guide you through the prerequisites needed, the script itself, and how to implement it effectively.

In today’s data-driven world, converting data between formats is a common task. One such conversion that many developers face is changing JSON data into the more spreadsheet-friendly CSV format. This article provides a straightforward Bash script to perform this conversion efficiently. We will also explore a sample JSON data structure for clarity.

Choosing the right web server can make or break your website’s performance. With so many options available Apache, NGINX, LiteSpeed, OpenLiteSpeed, Caddy, and Lighttpd how do you know which one is the fastest, most efficient, and best suited for your needs? To find out, we conducted a comprehensive benchmark, testing these six popular web servers under different conditions, including static file handling, high concurrency, large file downloads, and sustained traffic simulations.

In the world of programming and scripting, text manipulation is a fundamental task. A common requirement is to convert a given string or sentence to uppercase. This article will guide you through creating a simple Bash script that accepts inputs via the command line interface (CLI) and transforms them into uppercase letters.

Elasticsearch is a powerful, open-source search and analytics engine designed for handling large-scale data. It is commonly used in log analysis, full-text search, and real-time analytics. This tutorial will guide you through installing and configuring Elasticsearch on Ubuntu/Debian.

In today’s digital world, managing files efficiently is crucial. One common task is zipping files within a directory to save space or to prepare for sharing. This article will guide you through creating a Bash script that zips all files in a specified directory. The script will accept the directory as a command-line argument, extract the directory name, and generate a zip file named with both the original directory name and the current date and time. Let’s get started!

In the world of file management, maintaining organization and efficiency is crucial. Long file names can lead to confusion and clutter, especially when dealing with numerous files across multiple directories. This article will walk you through creating a Bash script that recursively shortens file names in a specified directory while preserving the original file extensions. The script will respect the length of the file names based on a character limit specified as a command-line argument.

DeepSeek is a cutting-edge AI model designed for natural language processing, offering powerful capabilities such as text generation, summarization, and reasoning. It can run locally on Linux, making it an excellent choice for users who want privacy, control, and offline access to AI.

In a previous article, we learned how to create secure and efficient backups with Restic on Linux. Restic works on multiple platforms, but comes without a GUI. In this article, we learn how to install and use Backrest, a free and open source, user-friendly web-based interface for Restic.

In this article, we’ll explore how to create a simple Bash script that uses SSH to connect to a remote host with a username and password. Though using a password in scripts is generally discouraged due to security reasons, this example aims to demonstrate the mechanics of SSH connections in Bash scripting.

Pi-hole is a powerful network-level advertisement and Internet tracker blocking application that acts as a DNS sinkhole. It is lightweight and can run on most Linux-based systems, offering an efficient way to block ads across all devices on your network. This guide walks you through the step-by-step process of installing Pi-hole on your Linux server.

In the world of digital logic, XOR gates play a crucial role in determining outputs based on binary inputs. When translated into a Bash script, implementing an XOR operation can facilitate decision-making processes and enhance various programming tasks. This article will guide you through the practical usage of XOR gates in a Bash script, helping you understand how to effectively implement logic operations in shell scripting.

In this article, we will create a Bash script that checks if a specific partition is mounted. If it is not mounted, the script will attempt to mount it and then check again. This is crucial for ensuring that our script, which stores data into the partition, does not fill the system’s disk space when the partition is unavailable. By using this script with cron, we can automate tasks while maintaining system integrity.

The package manager is an integral part of every Linux operating system. Any Linux user that wishes to install, remove, or upgrade software will inevitably interact with the package manager in some capacity. Package management systems often differ in features across various Linux distributions, and the command syntax for each one is also slightly different.