In this guide, we're going to explore an interesting tool that aims at making updates of everything installed on your system as easy as just running one command. This software is topgrade, it detects the tools you use on your system [...]
How to Setup Django Development Environment on Ubuntu 18.04
Django is a powerful web framework that can help you get your Python application or website off the ground. Django includes a simplified development server for testing your code locally, but for anything even slightly production related, a more secure [...]
How to Use Netcat Commands with Examples
Netcat (nc) command is a powerful tool to analyze network connections, scan for open ports, transfer data etc. It is a networking utility for reading from and writing to network connections using TCP or UDP protocols. How to install netcat [...]
How to List Users using Linux Command Line
In Linux or Unix-like operating system, the '/etc/passwd' file stores all user information. This file contains the normal (regular) and system users. In this tutorial, I will show you how to list users in Linux using the command line. The [...]
How to Install and Configure DHCP on Ubuntu 18.04
A DHCP server configuration properties include Host Name, Domain Name, Time Server and Print Server. The server can allocate IP using client MAC address, using address pool and using automatic method. In this article, we are going to show how [...]
How to Check Service Running on Specific Port on Linux
Occasionally, we may need to check out the default port number of specific services/protocols or services listening on certain ports on Linux. A number of command line tools are available to help you search port names and numbers in your [...]
How to Install CHKROOTKIT on Ubuntu 18.04/Centos 7
In this tutorial, I'll explain how to install chkrootkit on our latest Ubuntu 18.04 and CentOS 7 systems. The chkrootkit is a common security scanner which helps the administrators to search the local system for signs that it is infected [...]
Termtosvg - A Tool to Record Terminal Session in Linux
During a presentation or a course/tutorial, you often need to present the results of the commands executed in your terminal. When the audience is present, it is possible to show the output immediately but for those who are not present, [...]
How to Configure Static IP Address on Ubuntu 18.04
Sometimes, you may find the need to configure a static IP address on your system. A perfect example is when you want to make it a server and host services so that it is always reached using a permanent/static IP address. In [...]
How to Remove Old kernel Versions from Boot on Ubuntu 18.04
Canonical provides regular updates for Ubuntu 18.04 system including kernel updates to manage the system’s resources as best as possible. This article will provide you some different methods to remove old kernels from the boot menu of your Ubuntu 18.04. When [...]
How to Install MySQL 8.0 on Ubuntu 18.04
In this brief tutorial, we'll look at how you can install MySQL 8.0 on Ubuntu 18.04. MySQL is a free and opensource cross platform database server that is used on many opensource projects and high availability systems such as LAMP [...]
How to Configure Postfix with Webmail on Ubuntu 18.04
We have shown in the first part of our tutorial how to install and configure Postfix on Ubuntu 18.04 with Dovecot, MySql, Nginx, Postfixadmin with which we have created the virtual domains and users. Now we are able to send [...]
QtPad - Modern Customizable Sticky Note App for Linux
In this article, we'll focus on how to install and use QtPad on Ubuntu 18.04. Qtpad is a unique and highly customizable sticky note application written in Qt5 and Python3 tailored for Unix systems. Some of its notable features include: [...]
umonitor - Update Resolutions of Monitors on Hotplugged in Linux
This guide will cover installation and basic usage of umonitor on Linux. umonitor is a dynamic monitor management written in C and distributed as a single binary package. The name dynamic monitor management means that the positions and resolutions of your screen monitors will [...]