In Linux, we can set different users to different roles and responsibilities. Also we can set restriction for specific users and groups. In this tutorial we will show you how to add a user to a group in Linux systems. We will also explain you how to remove a user from a group and how
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How to Install Sublime Text 3 on Ubuntu 20.04
Sublime Text is a popular text and source code editor for web and software development. It is very fast, and it comes with lots of powerful features out of the box. The application can be enhanced and customized by installing new plugins and creating custom settings. This article explains how to install Sublime Text 3
How to Install MongoDB on Ubuntu 20.04
MongoDB is a free and open-source document database. It belongs to a family of databases called NoSQL, which is different from the traditional table-based SQL databases like MySQL and PostgreSQL. In MongoDB, data is stored in flexible, JSON-like documents where fields can vary from document to document. It does not require a predefined schema, and
How to Install CouchDB on Ubuntu 20.04
Apache CouchDB is a free and open-source NoSQL database developed by the Apache Software Foundation. It can be used as a single-node or clustered database. CouchDB server stores its data in named databases, which contains documents with JSON structure. Each document consists of a number of fields and attachments. Fields can include text, numbers, lists,
How to Install Gitea on CentOS 8
Gitea is a self-hosted open-source git server written in Go. It comes with a repository file editor, project issue tracking, users managements, notifications, built-in wiki, and much more. Gitea is a lightweight application and can be installed on less powerful systems. If you are searching for a Gitlab alternative with a much smaller memory footprint
How to Install Nagios on Ubuntu 20.04
Nagios is a popular open-source monitoring system. Nagios keeps an inventory of your entire IT infrastructure and ensures your networks, servers, applications, services, and processes are up and running. In case of failure or suboptimal performance, Nagios will send notification alerts via various methods. This article explains how to install Nagios on Ubuntu 20.04. Installing
Bash: Append to File
This tutorial explains how to append text to a file in Bash. There are different ways to append text to a file. Prerequisite# Your user must have write permission to a file in which you want to append text. Otherwise, you will receive a permission denied error. Append Text using Redirection Operator (>>)# Using Redirection
How to Install Memcached on CentOS 8
Memcached is an open-source, free and high-performance in-memory caching system. Generally, it’s used to speed up web applications by caching large volumes of data in memory from page load requests or API calls. This article explains how to install and configure Memcached on CentOS 8. Install Memcached on CentOS# The standard CentOS 8 repositories includes
How to Install TensorFlow on Debian 10
TensorFlow is an open-source and free software library for machine learning developed by Google. It can be installed system-wide, in a Python virtual environment, as a Docker container, or with Anaconda. Also, large companies like Airbus, Intel, Twitter, PayPal, and Lenovo using TensorFlow. In this tutorial we will show you how to install TensorFlow in
How to Set Up SSH Keys on Ubuntu 20.04
Secure Shell (SSH) is a network protocol for creating a secure connection between a client and a server. With SSH, you can run commands on remote machines, create tunnels, forward ports, and more. SSH supports various authentication mechanisms. The two most common ones are password and public-key based authentication. Authentication using a public key is