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Articles on Trending Technologies
Technical articles with clear explanations and examples
Linux Package Management with Aptitude
Aptitude is a text-based front-end for APT (Advanced Package Tool) built on the Ncurses library, designed for Debian-based systems. It provides an interactive interface for package management and runs from the terminal or command line interface. This article explains Linux Package Management with Aptitude and APT commands. What is APT APT is a command-line package manager that provides commands for searching, managing, and querying information about packages. It offers the same functionality as specialized APT tools like apt-get and apt-cache, but with options more suitable for interactive use by default. To get more information about APT, use ...
Read MoreHow to setup sendmail in ubuntu?
Sendmail is a powerful and reliable mail transfer agent (MTA) that efficiently handles large volumes of email on Linux systems. It works by accepting email messages from local or remote mail clients and relaying them to destination mail servers using the Simple Mail Transfer Protocol (SMTP). This article provides a comprehensive guide on installing and configuring Sendmail on Ubuntu systems, covering everything from basic setup to advanced configuration options. Installing Sendmail on Ubuntu Begin by updating your package list and installing Sendmail using the following commands: sudo apt-get update sudo apt-get install sendmail ...
Read MoreShowing a GUI Notification From a Shell Script in Linux
GUI notifications from shell scripts in Linux allow you to display visual alerts and messages to users. Two primary tools accomplish this: notify-send for desktop notifications and zenity for interactive dialog boxes. Using the notify-send Command The notify-send command is part of the libnotify library and comes pre-installed on most Linux distributions. It displays brief desktop notifications that appear in the system notification area. Basic Syntax notify-send [options] Simple example displaying a notification − notify-send "Hello" "World" Common Options Option Description Example Values ...
Read More8 Open Source Commercial Billing Platforms for Hosting Providers
As demand for web hosting services grows, hosting providers are continually looking for ways to automate their billing processes. Commercial billing platforms offer a comprehensive solution, but not every provider has the budget for expensive proprietary software. Fortunately, open source billing platforms provide a cost-effective alternative to automate billing, client management, and payment processing. In this article, we will explore eight open source commercial billing platforms specifically designed for hosting providers. Top Open Source Billing Platforms WHMCS WHMCS is one of the most popular billing platforms for hosting providers. It offers complete client management and billing software with ...
Read MoreHow to Execute Programs From Anywhere in Linux?
Linux is a widely used open-source operating system that offers users the flexibility to execute programs from any location on the system. Unlike other operating systems, Linux does not restrict programs to fixed directories, enabling users to access executables from anywhere. This feature is particularly advantageous when you need a program to run from multiple locations or when managing custom software installations. To execute programs from anywhere in Linux, the system uses the PATH environment variable, which contains a list of directories where Linux searches for executable files. Understanding how this works and where programs are typically stored is ...
Read MoreHow to Install and Configure OpenVPN Access Server?
Virtual Private Network (VPN) technology is essential for secure remote access to networks and resources. OpenVPN Access Server is a popular VPN solution that provides a scalable and robust VPN infrastructure for enterprises and organizations of all sizes. In this tutorial, we will walk through the complete process of installing and configuring OpenVPN Access Server on Ubuntu 20.04. Prerequisites Before we start, ensure you have the following prerequisites − A VPS or dedicated server with Ubuntu 20.04 installed Root access to the server A domain name pointing to your server IP address A static IP address ...
Read MoreLayered Operating System
A Layered Operating System is an architectural approach where the operating system is divided into multiple hierarchical layers, each with specific functionalities. This design was developed as an improvement over early monolithic systems, providing better organization, maintainability, and modularity. Why Layering in Operating System? Layering provides distinct advantages in operating system design. Each layer can be defined separately and interact with adjacent layers as required. This approach makes it easier to create, maintain, and update the system since changes in one layer specification do not affect other layers. The layered structure also enhances debugging and testing capabilities, as ...
Read MoreConfigure Postfix to Use Gmail SMTP on Ubuntu
Postfix is an open-source mail transfer agent (MTA) that allows users to send and receive email on Linux systems. It is an efficient and easy-to-use solution that can be configured to work with various email providers, including Gmail. In this article, we will show you the steps to configure Postfix using Gmail SMTP on Ubuntu. This process involves setting up your Gmail account to allow apps to access it, installing and configuring Postfix, and testing the setup to ensure it works correctly. Why Use Gmail SMTP with Postfix? Using Gmail SMTP with Postfix offers several benefits: ...
Read MoreRun a Java Application as a Service on Linux
Running a Java application as a service on Linux allows your application to start automatically at boot time, run in the background, and be managed using standard system commands. This approach ensures your Java applications remain running even after terminal sessions are closed and can be controlled through the system service manager. Understanding Linux Services A service (or daemon) in Linux is a background process that performs specific functions without direct user interaction. Services can be started automatically at boot time and controlled using command-line tools or system service managers like systemd or Upstart. To create a ...
Read MoreAxel – A Command-Line File Download Accelerator for Linux
If you're a Linux user who often downloads files from the web, you might be familiar with slow download speeds that come with it. Fortunately, there's a tool called Axel that can help you accelerate your file downloads from command line. In this article, we'll discuss what Axel is, how it works, and how you can use it to speed up your downloads. What is Axel? Axel is a command-line tool that is used to accelerate file downloads in Linux. It is a lightweight and fast download accelerator that splits a single file into multiple parts and downloads ...
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