Tag

ubuntu

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Raymond Ops
Raymond Ops
Jun 13, 2025 · Information Security

Master Ubuntu’s UFW: Simple Commands to Enable, Configure, and Manage Firewall Rules

This article introduces Ubuntu’s Uncomplicated Firewall (UFW), explaining how to enable, disable, reset, set default policies, and create, modify, or delete specific IP, port, and protocol rules using concise command-line examples, helping users quickly secure client machines with practical firewall configurations.

LinuxUFWcommand line
0 likes · 7 min read
Master Ubuntu’s UFW: Simple Commands to Enable, Configure, and Manage Firewall Rules
Java Captain
Java Captain
Jun 9, 2025 · Operations

How to Quickly Spin Up Ubuntu VMs with Multipass: A Step‑by‑Step Guide

This guide introduces Multipass, a lightweight cross‑platform VM manager, and walks through installing it, launching Ubuntu instances, checking status, accessing shells, and automating setup with cloud‑init, while also covering pause, restart, and deletion commands.

Cloud‑InitMultipassVM
0 likes · 6 min read
How to Quickly Spin Up Ubuntu VMs with Multipass: A Step‑by‑Step Guide
Architecture Digest
Architecture Digest
May 27, 2025 · Operations

Using Multipass to Create and Manage Ubuntu Virtual Machines

This article introduces Multipass, a lightweight cross‑platform virtual machine manager, and provides step‑by‑step instructions for installing it, launching Ubuntu instances, checking status, executing commands, and automating setup with cloud‑init, highlighting its usefulness for rapid development and testing environments.

Cloud‑InitDevOpsMultipass
0 likes · 6 min read
Using Multipass to Create and Manage Ubuntu Virtual Machines
Raymond Ops
Raymond Ops
May 17, 2025 · Operations

How to Install Rancher 2.6.9 and Deploy a Kubernetes Cluster on Ubuntu

This step‑by‑step guide shows how to prepare two Ubuntu 22.04 servers, configure Docker and system settings, install Rancher 2.6.9 via Docker, and use Rancher’s UI to create and launch a functional Kubernetes master‑node and worker‑node cluster.

Cluster DeploymentDockerKubernetes
0 likes · 7 min read
How to Install Rancher 2.6.9 and Deploy a Kubernetes Cluster on Ubuntu
Raymond Ops
Raymond Ops
May 4, 2025 · Operations

How to Safely Clone an Ubuntu System Disk with dd: Step‑by‑Step Guide

This article provides a comprehensive, step‑by‑step guide on using the low‑level dd tool to back up and restore an Ubuntu system disk, covering prerequisites, preparation, command examples, optional compression, feasibility analysis, precautions, and a concise conclusion.

Linux operationsLiveUSBdd
0 likes · 7 min read
How to Safely Clone an Ubuntu System Disk with dd: Step‑by‑Step Guide
Raymond Ops
Raymond Ops
Mar 30, 2025 · Operations

How to Permanently Disable Swap on Modern Linux Systems

This guide explains why the traditional /etc/fstab comment method fails on newer Linux distributions and provides two reliable techniques—masking the swap.target unit with systemd and adding the noauto option to the fstab swap entry—to permanently disable swap across Ubuntu, CentOS, openEuler, and other major systems.

CentOSLinuxfstab
0 likes · 7 min read
How to Permanently Disable Swap on Modern Linux Systems
Java Architect Essentials
Java Architect Essentials
Mar 17, 2025 · Backend Development

One‑Click Deployment of a SpringBoot Application Using IDEA and Docker

This tutorial demonstrates how to replace the traditional jar‑upload workflow with an IDEA‑integrated Docker solution, covering environment setup, SSH configuration, Docker daemon connection, SpringBoot code, Dockerfile creation, remote deployment settings, firewall opening, and common troubleshooting steps.

DockerIDEAMaven
0 likes · 8 min read
One‑Click Deployment of a SpringBoot Application Using IDEA and Docker
IT Services Circle
IT Services Circle
Mar 5, 2025 · Frontend Development

How to Install and Use the "Burn My Windows" GNOME Extension on Ubuntu

This guide explains how to find, install, and use the "Burn My Windows" GNOME extension on Ubuntu, demonstrating the fiery window-closing effect and providing step‑by‑step instructions with screenshots for Linux enthusiasts seeking fun desktop customization.

GNOMELinuxOpen-source
0 likes · 3 min read
How to Install and Use the "Burn My Windows" GNOME Extension on Ubuntu
Practical DevOps Architecture
Practical DevOps Architecture
Jan 8, 2025 · Operations

How to Add a Startup Script on Ubuntu Using the rc‑local Service

This guide explains how to create and enable an rc‑local startup script on Ubuntu by inspecting the rc‑local.service unit, creating /etc/rc.local, setting execution permissions, and enabling the service with systemctl so custom commands run automatically at boot.

Linuxoperationsrc-local
0 likes · 3 min read
How to Add a Startup Script on Ubuntu Using the rc‑local Service
Architecture Digest
Architecture Digest
Dec 20, 2024 · Fundamentals

Introducing Wubuntu: A Windows‑Styled Ubuntu Distribution

The article announces a free programmer book giveaway via a backend command and then introduces Wubuntu, a Windows‑styled Ubuntu distribution that fully replicates Windows UI, runs without TPM or Secure Boot, supports Windows .exe/.msi and Android apps, and provides download links for its free and professional editions.

LinuxOpen-sourceOperating System
0 likes · 3 min read
Introducing Wubuntu: A Windows‑Styled Ubuntu Distribution
IT Services Circle
IT Services Circle
Oct 2, 2024 · Fundamentals

Rhino Linux: Ubuntu‑Based Rolling Release with Pacstall Package Manager and Customized Xfce Desktop

Rhino Linux is an Ubuntu‑based rolling‑release distribution that combines the Pacstall package manager for unified handling of Deb, Pacstall and Flatpak packages with a heavily customized Xfce desktop, offering a polished desktop experience, built‑in utilities, and support for various hardware platforms.

LinuxPacstallRhino Linux
0 likes · 4 min read
Rhino Linux: Ubuntu‑Based Rolling Release with Pacstall Package Manager and Customized Xfce Desktop
DevOps Operations Practice
DevOps Operations Practice
Sep 26, 2024 · Operations

How to Install Docker on Ubuntu 24.04

This guide walks you through updating Ubuntu 24.04, adding Docker's repository, installing the Docker engine, starting and enabling the service, verifying the installation, adding your user to the Docker group, and running basic Docker commands, all with exact terminal commands.

DockerInstallationLinux
0 likes · 5 min read
How to Install Docker on Ubuntu 24.04
Wukong Talks Architecture
Wukong Talks Architecture
Jun 7, 2024 · Operations

Troubleshooting Node Installation Failure on Ubuntu Due to Missing GLIBC 2.28 and Recovery Steps

This article recounts a failed Node.js installation on an older Ubuntu server caused by a missing GLIBC 2.28 library, details the attempted GLIBC upgrade script that led to system-wide segmentation faults, and explains how reinstalling a newer Ubuntu version resolved the issue while emphasizing careful backup practices.

LinuxNode.jsSystem Upgrade
0 likes · 4 min read
Troubleshooting Node Installation Failure on Ubuntu Due to Missing GLIBC 2.28 and Recovery Steps
DevOps Operations Practice
DevOps Operations Practice
May 5, 2024 · Operations

Top 4 CentOS Alternatives: AlmaLinux, Rocky Linux, Ubuntu, and Debian

With the discontinuation of CentOS Linux, this article evaluates four leading replacement operating systems—AlmaLinux, Rocky Linux, Ubuntu, and Debian—based on stability, long‑term support, and compatibility for enterprise environments.

AlmaLinuxCentOSDebian
0 likes · 5 min read
Top 4 CentOS Alternatives: AlmaLinux, Rocky Linux, Ubuntu, and Debian
Python Programming Learning Circle
Python Programming Learning Circle
Apr 30, 2024 · Cloud Native

Choosing the Right Docker Base Image for Python Applications: Requirements, Size, and Build‑Time Comparison

This article evaluates several Linux‑based Docker base images for Python applications, outlining stability, security, library availability, and size requirements, then compares Ubuntu, CentOS, Debian, Amazon Linux 2, official Python images and Alpine in terms of image size and build time, concluding with practical recommendations.

AlpineAmazon LinuxBase Image
0 likes · 17 min read
Choosing the Right Docker Base Image for Python Applications: Requirements, Size, and Build‑Time Comparison
DevOps Operations Practice
DevOps Operations Practice
Apr 10, 2024 · Operations

Common apt Commands for Managing Packages on Ubuntu

This article provides a concise guide to using the apt package manager on Ubuntu, covering installation, updating package lists, upgrading, searching, displaying information, removing packages, and cleaning up unused files with clear command examples.

APTLinuxPackage Management
0 likes · 4 min read
Common apt Commands for Managing Packages on Ubuntu
DevOps Operations Practice
DevOps Operations Practice
Mar 12, 2024 · Operations

Top Linux Distributions to Replace CentOS: Ubuntu, AlmaLinux, Rocky Linux, and Debian

With the end of CentOS Linux, this article reviews four widely‑used, enterprise‑grade Linux distributions—Ubuntu, AlmaLinux, Rocky Linux, and Debian—detailing their origins, features, compatibility with CentOS, and suitability for production environments.

AlmaLinuxCentOSDebian
0 likes · 4 min read
Top Linux Distributions to Replace CentOS: Ubuntu, AlmaLinux, Rocky Linux, and Debian
Efficient Ops
Efficient Ops
Feb 4, 2024 · Operations

15 Fun Linux Commands to Play and Learn in Your Terminal

Explore a collection of entertaining Linux terminal commands—from reversing strings with rev to playing classic games like Pacman—complete with installation steps, usage examples, and visual demonstrations to enrich your command-line skills and boost.

LinuxTutorialcommand line
0 likes · 7 min read
15 Fun Linux Commands to Play and Learn in Your Terminal
macrozheng
macrozheng
Feb 2, 2024 · Cloud Computing

Quickly Spin Up Ubuntu VMs on macOS with Multipass: A Step‑by‑Step Guide

This guide shows how to install Multipass on macOS, create and manage lightweight Ubuntu virtual machines using simple CLI commands, configure resources, mount volumes, transfer files, and automate setup with cloud‑init, providing a fast alternative to heavyweight virtualization tools for local development.

Cloud‑InitDevOpsMultipass
0 likes · 11 min read
Quickly Spin Up Ubuntu VMs on macOS with Multipass: A Step‑by‑Step Guide
DevOps Operations Practice
DevOps Operations Practice
Oct 31, 2023 · Operations

CentOS vs Ubuntu: Detailed Comparison of Features, Pros, Cons, and Use Cases

This article provides a comprehensive comparison between CentOS and Ubuntu, covering their histories, advantages, disadvantages, package management systems, software repositories, community support, and typical use cases, to help readers choose the most suitable Linux distribution for server or desktop environments.

CentOSComparisonDesktop
0 likes · 8 min read
CentOS vs Ubuntu: Detailed Comparison of Features, Pros, Cons, and Use Cases