Set and List Environment Variables in Linux

In Linux based systems you can set dynamic named values as environment variables. Those values are stored within the system and are used by command line applications. To put it simply, an environment variable is a variable with a name [...]

Slavisa Milojkovic 2:20 am

How to Install Docker on CentOS 8

CentOS 8 comes with its own tools, buildah and podman, which are compatible with existing docker images and work without relying on a daemon, allowing the creation of containers as normal users, without the need of special permissions. These tools [...]

Slavisa Milojkovic 4:29 am

How to Install Pip on CentOS 8

In this tutorial, we will install Python pip on CentOS 8 using the yum package manager and cover the basics of how to install and manage Python packages with pip. In the CentOS 8 repository AppStream, there are both pip [...]

Slavisa Milojkovic 2:17 am

How to Install Cockpit on CentOS 8

install cockpit on centos

Cockpit is a free and open-source web based server management software. It has a pretty web console which allows system administrators to easily perform tasks such as storage administration, network configuration, starting Docker containers, check out the server performance, start [...]

Slavisa Milojkovic 10:08 am

How to Append to End of a File in Linux

In this tutorial, we learn different ways to append text to the end of a file in Linux. You can achieve this using several methods in Linux, but the simplest one is to redirect the command output to the desired [...]

Slavisa Milojkovic 8:50 am

How to Configure sources.list on Debian 10

Debian is one of the most popular Linux distributions of all time, and now it got a new version release Debian 10 Buster. There is a lot of derivatives that came out of Debian, of which the most popular is [...]

Slavisa Milojkovic 4:00 am

Horde vs Roundcube vs Squirrelmail - Which Works Best

Webmail is a great way to access your emails from different devices and when you are away from your home.  Now, most web hosting companies include email with their server plans. And all of them offer the same three, webmail [...]

Slavisa Milojkovic 3:00 am

How to Fix 'add-apt-repository command not found' on Ubuntu & Debian

In some cases on Linux Mint, Linux Lite, Zorin OS, elementary OS and other Ubuntu based distros, as well as Ubuntu and Debian, you’ll see the error that add-apt-repository command is missing. $ sudo: add-apt-repository: command not found This tutorial [...]

Slavisa Milojkovic 3:00 am

How to List Cron Jobs in Linux

List cron jobs linux

For linux to automatically perform tasks that you would otherwise have to perform yourself, such as running scripts and executing specific commands, we use a tool called cron. On Linux systems, the cron utility is the preferred way to automate [...]

Slavisa Milojkovic 6:00 am

How to Find/Change Ubuntu Default Root Password

Change default ubuntu root password

Before I explain how to change the default password, its good to know about "Root SuperUser" and "sudo user" in Linux. In any Linux, as also in any Ubuntu version, there is a SuperUser named root, the Windows equivalent of [...]

Slavisa Milojkovic 2:30 pm

Ansible Interview Questions & Answers for Devops

check ansible interview questions

In this guide, we're going to look at Ansible Interview Questions & Answers for DevOps Engineers. This is intended to help you prepare for Ansible Devops Interview and also review your skills. Over the past one year, Ansible adoption has been massive. [...]

Slavisa Milojkovic 5:50 pm

How to Use Curl Command with Examples [Download Files]

How to use curl command

Curl is a wonderful tool available by default in UNIX based systems. It is a command line utility and a library. It is very useful while troubleshooting URL accesses and for downloading files. Curl supports a wide variety of protocols [...]

Slavisa Milojkovic 6:49 pm

How to Install Terraform on CentOS 7/Ubuntu 18.04

How to install terraform on centos and ubuntu

Terraform is a software which allows you to manage cloud infrastructure resources from code efficiently. You can use Terraform to build, change, and version infrastructure deployed on proprietary cloud providers or your own infrastructure on premises. It supports cloud service [...]

Slavisa Milojkovic 12:05 am