Mastering Ubuntu Server is essential for anyone looking to harness the power of one of the most widely used Linux distributions for servers. Known for its versatility, security, and open-source nature, Ubuntu Server is the ideal choice for hosting applications, managing infrastructure, and deploying cloud services. Whether you’re a beginner taking your first steps or an … Read more
Networking is a fundamental aspect of server administration, especially when working with Ubuntu Server. Whether you’re setting up a server in a cloud environment or managing an on-premises infrastructure, understanding how to configure network interfaces, assign static IP addresses, manage networking services, and troubleshoot connectivity issues is crucial. In this guide, we’ll cover the essentials … Read more
Introduction Ever wondered how to find files in a directory that haven’t been touched in ages? Whether you’re cleaning up old files, archiving data, or checking for stale files, Linux’s find command is your go-to solution. In this tip, we’ll show you how to list files by their age in Linux using a simple yet powerful command. … Read more
Navigating directories in Linux using the cd command is usually straightforward, but sometimes you might run into issues. Here’s a step-by-step guide to troubleshoot and resolve common problems when you can’t cd into a directory. 1. Check for Typos The first step is to ensure the directory name is spelled correctly. A typo can prevent you from accessing the … Read more
Introduction If you’ve worked with Linux systems, you may have noticed directories with names like /etc/logrotate.d/ or /etc/cron.d/. These .d folders follow a convention used by many services, from MariaDB to SSH, and from the kernel to PAM. Once you understand their purpose, you’ll start seeing them everywhere—such as mariadb.conf.d, sshd_config.d, modprobe.d, and pam.d. But why does a system need directories like /etc/logrotate.d/ for placing configuration files … Read more
Introduction In SUSE Linux Enterprise Server (SLES) clusters, the hb_report command is an essential tool for gathering detailed diagnostic information about a High-Availability (HA) cluster. This tool is crucial for troubleshooting cluster issues, identifying failures, and analyzing the health of the cluster environment. Whether you’re an administrator working on an HA cluster or a support engineer diagnosing issues, hb_report simplifies the process by … Read more
Linux provides various commands for text formatting and editing, and one particularly useful command is the nl command. This tool allows you to add line numbers to each line of a text file or input, making it easier to read and organize content. What Does the nl Command Do? The nl command displays the contents of a text file with line numbers added … Read more
Mastering Linux commands can significantly improve your efficiency in the terminal. Whether you’re a beginner or an experienced user, these handy tips will help you navigate, manage files, and optimize your workflow. 1. Switch Back to the Last Directory If you need to quickly return to the last directory you were in, use: This command … Read more
Avoid common pitfalls in Linux administration by following these practical tips. Learn how to handle permissions, troubleshoot errors, and secure your system effectively. 1. Avoid Running Commands That Change Multiple Properties Instead of running commands that change a large number of properties, focus on specific files or directories related to the issue you are troubleshooting. … Read more
The find command is a powerful tool for Linux system administrators and users alike. It allows you to search for files and directories within a directory hierarchy based on specific criteria. Whether you’re managing on-premises systems or cloud-based environments, mastering the find command can significantly improve your efficiency. In this article, we’ll explore the most common scenarios for using … Read more