When it comes to securing your Linux server or system, one of the most important tools at your disposal is a firewall. A firewall controls the incoming and outgoing network traffic based on predetermined security rules. UFW, short for Uncomplicated Firew ...
Proxmox Ubuntu VM doesn’t utilize whole disk Space
Ubuntu VM hosted on my Promox server wasn't utilizing all the allocated disk space. The following commands helped. pvresize /dev/mapper/ubuntu--vg-ubuntu--lv /dev/sda3 Purpose: This command is used to resize a Physical Volume (PV) that belongs to a ...
Linux System Administration Best Practices
As a Linux system administrator, your role involves maintaining the stability, security, and performance of the systems you manage. Whether you're working on Ubuntu, CentOS, or any other Linux distribution, following best practices is essential for ensur ...
Automation with Ansible
In today's IT landscape, where infrastructure grows complex and environments are distributed across cloud, on-premise, and hybrid setups, automation is key to ensuring consistency, scalability, and efficiency. Ansible stands out as one of the most popula ...
Simplifying Multi-Container Applications with Docker Compose
Managing multiple containers can quickly become complex, especially when dealing with modern applications that rely on various services like databases, front-end servers, and background tasks. This is where Docker Compose comes into play. It provides a s ...
Mastering Docker: A Guide to Containers and Essential Commands
In today's fast-paced development world, Docker has revolutionized the way developers build, ship, and run applications. Docker provides a lightweight, efficient, and consistent platform for developers to package software into standardized units, known a ...