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Open Source Articles
Page 85 of 123
How to Increase Disk Inode Number in Linux
In Linux, an inode is a data structure that stores metadata about files and directories, including ownership, permissions, size, and disk location. Each file system has a fixed number of inodes created at format time. When inodes are exhausted, no new files can be created even if disk space remains available. This article explains how to increase the inode count in Linux. Understanding Inodes Inodes are allocated when the file system is created, not when files are created. Each inode contains a unique number that the file system uses to track files. The total inode count is determined ...
Read MoreHow to Increase SSH Connection Timeout in Linux
Secure Shell (SSH) is a widely used protocol for accessing remote systems securely over an insecure network. When establishing an SSH connection, there is a timeout value that determines how long the connection can remain idle before being closed. This mechanism prevents unauthorized access but can be inconvenient during extended work sessions. The SSH connection timeout is essential for security, but it can be a hassle when working on remote systems for extended periods. This article discusses how to increase the SSH connection timeout in Linux through various configuration methods. Understanding SSH Connection Timeout The SSH connection ...
Read MoreHow to Install and Configure Memcached on CentOS 8
Memcached is a distributed memory object caching system that can significantly improve the performance of your website or application by storing frequently accessed data in memory, reducing the number of database queries required. In this article, we will guide you through the process of installing and configuring Memcached on CentOS 8. Step 1: Install Memcached on CentOS 8 The first step is to install Memcached on your CentOS 8 system. You can do this by running the following command − sudo dnf install memcached This command will download and install Memcached on your system. ...
Read MoreHow to Install “atop” to Monitor Logging Activity of Linux System Processes
As a Linux user, monitoring your system's performance and process activity is crucial for maintaining optimal system health. With numerous processes running simultaneously on your Linux system, tracking resource usage and identifying performance bottlenecks can be challenging. Fortunately, there's a powerful tool called atop that provides comprehensive system and process monitoring capabilities. In this article, we'll guide you through installing and using atop to monitor your Linux system effectively. What is Atop? Atop is a Linux performance monitoring tool that displays real-time system and process-level performance statistics. It provides a comprehensive overview of system performance, including CPU usage, ...
Read MoreHow to Install “IPFire” Free Firewall Linux Distribution
If you're looking for a reliable and robust firewall solution for your network, IPFire might be the answer. IPFire is a free and open-source Linux distribution that provides enterprise-level security features, including a stateful inspection firewall, intrusion detection and prevention, virtual private networking (VPN), and more. In this article, we will guide you through the steps to install IPFire on your network. System Requirements Before we get started, let's make sure that your system meets the minimum requirements for IPFire − A 64-bit processor At least 512 MB of RAM (1 GB recommended) At least 4 ...
Read MoreHow to Install a DHCP Server in CentOS, RHEL and Fedora
DHCP (Dynamic Host Configuration Protocol) is a network protocol that automatically assigns IP addresses and network configuration parameters to devices on a network. It eliminates manual IP configuration, reducing administrative overhead and preventing address conflicts. This article guides you through installing and configuring a DHCP server on CentOS, RHEL, and Fedora systems. Install DHCP Server Package First, install the DHCP server package using the package manager. For newer versions, use dnf, while older versions use yum − # For CentOS 8+/RHEL 8+/Fedora sudo dnf install dhcp-server # For CentOS 7/RHEL 7 sudo yum install dhcp ...
Read MoreHow to Install a Lightweight Bodhi Linux Distro
Bodhi Linux is a lightweight, Ubuntu-based Linux distribution that uses the Enlightenment desktop environment, providing a sleek and minimalistic interface. This guide walks through the complete installation process, from system requirements to post-installation setup. System Requirements Before installing Bodhi Linux, ensure your computer meets these minimum requirements − A 64-bit processor At least 512 MB of RAM (1 GB recommended) At least 5 GB of free hard drive space A DVD drive or USB flash drive with at least 2 GB capacity A stable internet connection Downloading Bodhi Linux Download the ISO file ...
Read MoreAnsible Playbook Dry Run Run Playbook in Check Mode
Ansible is an open-source IT automation tool used for configuration management, application deployment, and task automation. It allows system administrators to manage a large number of servers with ease. Ansible Playbook is a powerful feature that allows users to automate tasks and manage configurations through YAML files. When creating a playbook, it's important to test and validate it before executing it on production systems. Ansible offers a Dry Run feature to run a playbook in check mode, which enables users to simulate execution without making any actual changes. This validation step is crucial for maintaining system stability and avoiding ...
Read MoreAnsible Check if a File Exists
Ansible is an automation tool that helps in configuring and managing servers, networking devices, and other infrastructure. It simplifies the process of automation by providing a high-level language to describe infrastructure as code. In this article, we will discuss how to check if a file exists using Ansible. Why Check if a File Exists in Ansible? Checking if a file exists is an important task when automating infrastructure. It allows you to determine whether or not a file is present on a system, which can be useful when creating idempotent tasks. Idempotence means that a task can be ...
Read MoreApropos Linux Command Explained {With Examples}
If you're someone who frequently uses Linux, you may have come across the term apropos while using the terminal. Apropos is a very useful Linux command that helps users find commands related to a specific topic or keyword. In this article, we will take a closer look at the apropos command and explain its usage with several examples. What is Apropos? Apropos is a command-line utility in Linux that searches manual pages for a keyword or topic and returns a list of relevant commands. It is a great tool for quickly finding commands you need, especially if you ...
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