SysAdmin

How to Install VirtualBox on Ubuntu

March 13, 2024

VirtualBox is a powerful tool for running a virtual operating system on your computer. In this tutorial learn how to install VirtualBox on Ubuntu 18.04.

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How to Get the Current Date and Time in Python

March 12, 2024

The article shows you how to create a basic Python script that displays the current date and time. Find out how to use the datetime and time modules to format the information you need.

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How to Generate SSH Keys on Ubuntu

March 7, 2024

This article is meant to help system administrators configure SSH Keys on Ubuntu. The instructions allow you to set up encrypted credentials quickly.

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How to Set up and Enable Automatic Updates on Ubuntu


If you do not keep your Ubuntu operating system up-to-date, you run the risk of compromising overall system security. Managing the process manually, wastes valuable resources and can even lead to overlooking essential security updates. In this tutorial, we explain how to Enable automatic security updates in Ubuntu 18.04. Doing so ensures your system stays protected with the latest security packages at all times.

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How to Check CPU Utilization in Linux with Command Line

March 6, 2024

You have probably noticed your Linux OS slowing down, especially when working harder. Understanding CPU processor usage is critical for overall performance measurement.

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Fix "sub-process /usr/bin/dpkg returned an error code (1)"

March 5, 2024

Ddpkg is a tool used to install packages in Debian-based distributions. The error message “Sub-process /usr/bin/dpkg returned an error code (1)” indicates a problem with the package installer. This guide shows different methods for resolving the issue.

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How to Migrate CentOS to Ubuntu


This guide provides practical reasons and steps to perform a migration from CentOS to Ubuntu. Learn why Ubuntu is a good choice in this guide!

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How to Install Vault on Ubuntu

March 4, 2024

Store, control, and protect the data you use for authentication or authorization by installing Vault in your Ubuntu 18.04 system. In this tutorial you will learn step by step how to install and configure Vault, as well as how to set up Consul.

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grep Command in Linux With Examples

February 29, 2024

This article lists the most useful grep commands in Linux. It provides clear-cut examples and explains how to use grep options.

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How to Start, Stop, or Restart Apache Server on Ubuntu


Apache is part of the popular LAMP stack of software. This article shows how to start, stop, and restart the Apache service on Ubuntu using the CLI.

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