Prerequisites Download the Jitsi GPG Key First, download the Jitsi GPG key with the curl downloading utility: In this command, -o specifies the name of the file where the downloaded key data will be saved. The apt package manager will use this GPG key to validate the packages you will download from the Jitsi repository. Add the Jitsi GPG Key to Your System Keyring Next, add the GPG key to your system’s keyring with the
When a Linux system crashes, the most valuable tool for troubleshooting is a kernel crash dump. A crash dump captures the contents of the system’s memory at the moment of failure, allowing administrators and developers to analyze the root cause using tools like crash or gdb. On Debian Linux, the kdump service provides this functionality by reserving memory for a secondary kernel (called the dump-capture kernel) that boots when the primary kernel fails. In this
OpenLiteSpeed is a high-performance, open-source web server software designed to efficiently serve web content. It is the open-source version of LiteSpeed web server, which is known for its high speed and performance. Many web developers and system admins choose OpenLiteSpeed because it’s reliable, easy to use, and great for running websites or apps that need to load quickly. Setting up OpenLiteSpeed on AlmaLinux 9 ensures a secure and optimized environment for modern applications. Follow the
CodeIgniter is a lightweight, fast, flexible, and secure full-stack PHP web framework. It’s a toolkit designed to help people build websites with PHP more quickly. Instead of writing everything from scratch, CodeIgniter provides a collection of ready-to-use libraries for common tasks, along with a simple and organized way to access them, making Installing CodeIgniter on Ubuntu 24.04 a seamless process for developers. Why go with CodeIgniter? Prerequisites Step-by-Step Installation on Ubuntu 24.04 Step 1: Update
Ruby on Rails is one of the most popular frameworks for building modern web applications. When paired with Passenger and Nginx, you get a production-ready deployment stack that is simple, secure, and high-performance. In this guide, we’ll walk through the process of setting up a fresh Ruby on Rails application to deploy Ruby on Rails and running it with Passenger on Ubuntu 24. Steps to Deploy Rails with Passenger 1. Update and Install Dependencies Make
Mattermost is an open-source, self-hosted collaboration platform designed for secure team communication. If you’re looking to set it up, you can follow this guide to install Mattermost on Ubuntu 24.04 for a seamless and secure deployment. Prerequisites Step 1: Update System Packages Step 2: Install and Configure PostgreSQL Install PostgreSQL and enable it to start on boot: Create Mattermost Database and User Switch to the PostgreSQL user: Create a new PostgreSQL user and database: Step
Update the System Install Nginx Install MariaDB Then run: From here you can create a database and user for Pimcore. Install PHP and Extensions Install PHP and all necessary extensions. Ensure you’re using a supported PHP version (e.g., PHP 8.3). Install Composer Create Pimcore Project Navigate to your web root and create the Pimcore project using Composer:- Set the right permissions Install Pimcore Run the Pimcore installer: Configure Nginx Create a new config file Enable
In today’s interconnected world, network hiccups—latency, packet loss, or unreachable hosts—can wreak havoc on Linux systems’ performance. A powerful way to diagnose these problems is using MTR (My Traceroute), a dynamic tool that merges the capabilities of ping and traceroute. This guide will show you how to use mtr command effectively for troubleshooting. What Makes MTR So Effective? Unlike traceroute, which merely maps the path of packets, MTR combines path tracing with real-time latency and
If you’ve recently installed or upgraded phpMyAdmin on a Server, you may be displayed with this phpmyadmin blowfish_secret warning message. This might be alarming, but it’s actually a quick fix — and it’s essential for security. What Is blowfish_secret? phpMyAdmin uses cookie-based authentication by default. To secure this process, it encrypts credentials stored in cookies using the Blowfish cipher. For that encryption to work, a secret passphrase (called blowfish_secret) is required. If this value is
For creating a CPU usage alarm using the AWS Management Console Open the CloudWatch Console Go to CloudWatch in the AWS Console Navigate to Alarms In the navigation pane on the left, choose Alarms, then click on All Alarms. Create a New Alarm Select Create alarm, then click Select metric. Choose Your EC2 Metric Go to the All metrics tab. Choose EC2 metrics Select a metric category, such as per instance metrics. Find the row
