Let’s have a look at a really simple to use firewall, the UFW firewall. As a system administrator, it is our duty to make sure that the systems we work on are secured from attackers. There are multiple methods to…
In this tutorial, we’ll learn how to set environment variables in Linux manually. When using Linux, the Kernel sets up the environment with default values for a lot of variables that we would need to use. This includes the default…
When you use the sudo command for the first time, you see the message “With great power, comes great responsibility.” And rightly so. “Sudo” is short for Superuser Do. With this command, any user who has been granted permissions has…
With windows, you have a couple of well-known GUI utilities like WinRAR, 7zip, etc. that allow you to play around with archived files. What do you do in the case of Linux? The answer is – Linux zip and unzip…
With a boom in back-end web development technologies, working with the right framework can make or break your web development efforts. Python Flask is one of the many good frameworks out there. Flask is a popular Python web framework that…
As a programmer, you’ll need to make use of the git for your code versioning needs very often. And if you’re writing code in a collaborative environment, Git will take care of a majority of the work in code collaboration.…
Installing the GCC compiler is a very easy task on Debian. The APT package manager and the APT repository has everything ready for you. Let’s look at how we can install GCC on our Debian systems in a quick and…
The df command in Linux is a powerful tool for monitoring disk usage and the available amount of space on your system. Whether you’re a Linux server administrator or a regular user, understanding how to use the df command can…
The installation for MySQL on Debian will be through the APT repository. Now there is a default MySQL server installation and one that is offered by Oracle through their software repositories. We’ll take the official route by first adding Oracle’s…
Changing the SSH port on Linux is pretty easy and straightforward. As it is with most of the packages that are available for any Linux distribution including Ubuntu, they come with a configuration file. Let’s modify that configuration file and…