Overview Previously we have covered a process on how to change SSH port on your remote server(POST). Next in this article, we will show you how to setup a passwordless SSH connection on Linux. To setup a passwordless SSH connection is very secure and a good practice for hardening your server. It is more secure than any other strong password, really difficult to hack and effortless to set up. ...

Overview The following article will cover the basics of cron scheduler and showcase couple of examples on how to setup a cron job in Linux. Periodically, you want to perform certain task at specific time, like sending disk space report of server or take database backup every night. It will be really wonderful if you can perform such kind of task automatically rather than repeat it and doing it manually, right? ...

Overview Hi! I hope you’re all well and prepared to learn some new stuff. This time we’ll go through the basics of how to set a static IP address in Linux. In case that this stirs a question is there another type (let’s say dynamic, perhaps?), answer is yes, there is! There is a protocol for assigning dynamic IP addresses called Dynamic Host Configuration Protocol or DHCP shortly. Most likely that you have a dynamic IP address assigned by your router in home environment! ...

Overview This post is intended to act as guide and demonstrate the steps how to install ZSH on Linux. The following guide will demonstrate how to install ZSH in Linux(aka zshell) and also showcase the steps on how to set zsh as a default shell on login. ZSH is available by default in many repositories of Linux package managers, so the install process is straightforward Install ZSH on Ubuntu/Debian/Mint/Pop OS In order to install ZSH on Ubuntu or Debian or on any Debian/Ubuntu based distro, the ZSH can be installed via the “apt” package and to install it, simply run the following command: ...

Overview Hi fellow Linux users! I hope you are you’re ready for some new lessons about Linux. This time we’ll turn to dark side right away, because this article will be devoted to destruction. We’ll learn how to destroy… I meant, how to delete files and folders in Linux. How to delete files in Linux Deleting files in Linux terminal is fairly easy. You’ve been already introduced to command in last article when we needed to delete symbolic links. It’s rm (shortly for remove, logicaly) and it command looks like this: ...

Overview We’re going to cover a process how to create a swap file in Linux, how to activate it and how to adjust it. You might have heard of linux swap term or maybe of linux swap space when you installed your Linux distro on your PC/server. If you were not sure about creating a linux swap space process and didn’t create one for some reason, you can instead create a Linux swap file instead. Also, there are some advantages to have a swap file instead of swap partition. Swap file is much easier to manage - meaning, you can easily change swap file size anytime, you can activate it and deactivate it anytime and etc. ...

Overview In this article we will be looking at various methods on how to create a file in Linux using terminal. We’ll be demonstrating file creation using text editors and also with some in-built commands and tools. f you’re new to the world of Linux, you probably heard (or even witnessed with your own eyes) that experienced and seasoned users use command line interface (CLI) rather than graphic user interface (GUI), harnessing the power of Linux. They use it on a daily basis, even for the simplest of tasks such as creating a new file. ...

Overview In the following article we’ll be going through the steps on how to change SSH port on Linux and establish the connection from the Linux SSH client(openssh) by using the port number we changed. In another words we want to change the default SSH port on Linux(port number 22) and using an uncommon port number for the SSH connection in order to tighten the security access on our Linux server. ...

Overview This article will be about the first line of defense against unauthorized access to your computer and personal information – passwords, meaning that we’ll explaining the process on how to change password in Linux for an existing user and for other users too. Main point about the passwords - The stronger your password is the more protected your computer will be. So be sure NOT to use your first or last name, date or place of birth, names of your children, pets or spouses, your home address, words from dictionary etc. The more characters it has, the harder is to break it. ...

Overview In this post we will cover the steps on how to change hostname on Linux. We’ll go through the basics on how to change a hostname on a Linux machine and why we do it and all the steps will be demonstrated using the terminal. Additionally, we’ll showcase a couple of different methods on how to do it. The options we’ll demonstrate can be applied on almost any Linux distro, for an example we can change the hostname on Ubuntu/Debian and even change the hostname on Fedora/RedHat. ...

Overview This article will demonstrate how we to set a hostname on a Linux server using Ansible playbook. The end goal of this procedure is to automate the process changing the hostname on our remote Linux server. Overall this process is simple when executed manually but this playbook can have it’s uses too. One example - use it as a template for new server deployment Requirements in order to successfully change the hostname: ...

Overview This post will cover multiple procedures on how to add user to sudoers on Linux or in other words, how to give sudo privileges to a user on Linux. The steps showcased here can be applied for almost any Linux distribution. We’re also going to showcase how to add a missing sudoers file and sudoers group in Linux, which by default may occur on some minimal Linux installations(usually on the first and fresh install). ...