In this guide we are going to install and configure Postgresql 14 in Rocky Linux Using Ansible. This guide works for other RHEL 8 based derivatives like Alma Linux and Oracle Linux.

Postgresql is an open source object-relational database system with over 30 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance. Postgres, is a free and open-source relational database management system emphasizing extensibility and SQL compliance.

Ansible is an open-source software provisioning, configuration management, and application-deployment tool enabling infrastructure as code. It runs on many Unix-like systems, and can configure both Unix-like systems as well as Microsoft Windows.

In this video, we are looking at how to install LibreOffice on Elementary OS 6.0.

Chances are, if you are looking at this tutorial, you do not need an introduction to Ansible. However, it does not hurt to make a quick recap.

Ansible is the most popular and probably powerful configuration management tool. It is built to facilitate the management and configuration of remote hosts using a set of commands defined as tasks.

It works by using modules developed for specific tasks such as managing users, managing files, installing and removing software packages, and many more.

This guide will use the Ansible AWS module to provision and manage an EC2 instance. We will start with the basics of setting up an AWS account, installing Ansible, and finally cover how to work with the Ansible AWS module.

Time is the essential parameter to evaluate the efficiency or performance of any task. Such a good processor is judged by good processing speed which is evaluated on the basis of time. Similarly, in Linux, the “time” command is used to evaluate the processing time taken by different commands in their execution. There are different ways to do the same task, for example, we can edit the text files using the vim editor as well as the nano editor, with the help of the time command we can evaluate which editor takes less execution time, then we can use that editor for text editing purposes for better performance.

Bitwarden is one of my favorite password managers. But if you're seriously concerned about security and would rather not save your password database on a third-party server, you might want to consider deploying your own Bitwarden server.

That might sound like a serious challenge but, thanks to Docker, it's actually quite simple. I'm going to show you how to do just that.

Centreon is an open-source monitoring system for monitoring IT infrastructures. Due to its modular structure and good scalability suitable for monitoring small to big networks through to complex IT environments with hundreds of hosts. Here in this tutorial, we will learn the commands to install the Open Source Centreon monitoring tool on AlmaLinux 8 or Rocky Linux 8 RPM Linux.

The project Centreon started in 2005 and was distributed among developers under GPLv2 and Apache Open Source licenses. It comes in four editions- Open Source; IT Edition; Business Edition and MSP Edition. Of course, editions other than open-source are subscription-based and with extra features as compared to community (open source) ones.

Just like Nagios or Icinga, Centreon also offers a web interface to view and manage multiple systems, furthermore, configuration through the Centreon web interface makes the effort considerably easier, especially when monitoring complex IT environments with hundreds of hosts and services.

Mail is the quickest way of communicating messages to your loved ones, there are different email client servers that allow users to send emails, besides this, Linux by default provides the feature of sending an email using the “mail” command through its terminal. We can write the subject, message along with the email address of the recipient and send it by just executing a single command.

There are different packages through which we can install the mail command, these packages are discussed in this write-up as well as the use of the mail command is also explained in detail.

Photo editing software and vector graphics editors such as Inkscape utilize the background removal feature to remove unwanted and unnecessary items from images, ultimately making their look more outstanding and attractive. It also assists in directing the audience’s attention to the main subject of the image. After removing the background from an image, various creative things can make the image more charming. Photographers use the background removing services to eliminate the error and the imperfections for the shot images.

In Inkscape software, you can use the image tracing and the outlining method for removing the background of an image. The “Trace Bitmap” feature helps trace the selected image in image tracing. Whereas a “Bezier” tool is used to outline the image’s main subject in the outlining method. This write-up will teach you both methods for removing the white background and colored background in Inkscape. So, let’s start!

Files are created and saved in the directories of Linux, they can be text files, image files, music files, or any other format. These files occupy some space and many files present in our system are purposeless, they should be deleted in order to make space for new files.

In Linux, we can either delete/remove a single file or delete all the files from a directory using a single command in a terminal. In this write-up, we will discuss the ways to remove all the files in a directory of Linux.

A computer system in an organization can be operated by a number of users, if someone leaves the organization his/her account becomes useless, it should be removed or deleted from the system to save storage space. If the operating system is Linux-based, the users can be managed using the terminal conveniently. In this follow-up, we are going to explain some simple queries through which we can remove the users from Linux.

In Linux we can move the directories to a specific folder and protect them by changing their access permission in order to secure the files and data present in those directories. To move the directory from one path to another is much simpler and can be done easily.

The one thing most people are confused about is the difference between move and copy command; copy command is used to make the clone of files/directories to some other paths while keeping the original file/directory at its original path, while the move command is used to move the file/directory from its original path and place it to some other path.

In this write-up, we have explained the methods in detail through which we can move the directories from one path to another in Linux.

The practice of counting lines in the file is usually adopted by the developers to determine the length of their code or the program. They do so to find out the efficiency of the program, the program having fewer lines performing the same task compared to the program of greater lines is assumed to be more efficient.

In Linux, there are different methods to count the number of lines in the files, all of these methods are discussed in this article in detail.

Here, we will learn how to install Zimbra mail with Ubuntu 18.04. Zimbra is an open-source email server utility. Zimbra collaborations suite is a good but cost-effective alternative for MS O365, G Suite, or other email services. Day-to-day user management, calendar management can be managed with Zimbra. Even ven file sharing and chatting can be managed easily with the collaboration suite. Zimbra does not support Ubuntu 20.04 or 21 as of now. To learn Zimbra installation with CentOS, you can refer to our article.

Sometimes you just need to deploy a quick Git repository so you can collaborate on a project, back up your code or house your files on a remote machine. When you feel like doing that, you don't want to have to spend an hour or so deploying a server and setting it up … especially when you already have everything you need at your fingertips.

I'm going to show you how you can quickly deploy a Git repository using just git and ssh. You should be able to spin this up in less than five minutes (two, if you type fast).

Today we are looking at how to install Mozilla Thunderbird, a mail client, on a Chromebook. Please follow the video/audio guide as a tutorial where we explain the process step by step and use the commands below.

This tutorial will only work on Chromebooks with an Intel or AMD CPU (with Linux Apps Support) and not those with an ARM64 architecture CPU.

If you have any questions, please contact us via a YouTube comment and we would be happy to assist you!

Vtiger is an open source CRM which includes inventory, email, project management, and other tools that provides a complete business management suite. Using vTiger CRM you can ensure premium support, sales management and for marketing teams to work smoothly to boost business growth and improve customer experience.

If you are really conscious about security and don’t want to spend your money on expensive software, then Qubes OS is the answer to all your security woes.

Qubes, as an operating system, works in isolation. It creates isolated compartments, all of them based on Xen-based virtualization technology.

This helps in the creation and management of "qubes" (isolated compartments). Each individual qube limits the interactions between software and hardware, to enhance the concept of security delivery.

In this guide, the intent is to help you install the latest version of Qubes OS on Oracle VirtualBox.