SSH keys provide a more secure method of logging into a server than using a password. With SSH keys, users can log into a server without a password. This tutorial explains how to generate, upload, and use an SSH key p...

Helm is a package manager for Kubernetes that allows developers and operators to more easily configure and deploy applications on Kubernetes clusters. In this tutorial, you will set up Helm 3 and use it to install, re...

Let's Encrypt is a Certificate Authority (CA) that provides an easy way to obtain and install free TLS/SSL certificates, thereby enabling encrypted HTTPS on web servers. It simplifies the process by providing a softwa...

Backups are copies or archives of data used for recovery after the loss, deletion, or corruption of a database or filesystem. Developers can create backups in a number of ways, including manual implementation, cloud h...

A content delivery network (CDN) is a geographically distributed group of servers optimized to deliver static content to end users. This static content can be almost any sort of data, but CDNs are most commonly used t...

Caching refers to the process by which server responses are stored and reused to make subsequent requests faster. DNS, databases, and web servers frequently use caching to increase speed and reduce load on servers and...

A Boolean is a data type which has one of only two possible values: true or false. Booleans represent the truth values that are associated with the logic branch of mathematics, which informs algorithms in computer sci...

C is an imperative, high-level programming language known for its modularity, static typing, variety of data types and operators, recursion, and structured approach to tasks.

Big data is a blanket term for the non-traditional strategies and technologies needed to organize, process, and gather insights from large datasets. Many users and organizations are turning to big data for certain typ...

A block storage service functions as a hard drive provided over the network. Developers can use block storage services to store files, combine multiple devices into a RAID array, or configure a database to write direc...

An application programming interface (API) is a set of routines, definitions, and protocols that allow developers to build application software. APIs abstract implementation and expose only necessary objects and actio...

The Apache HTTP Server is an open-source web server popular for its flexibility, power, and widespread support. It can be extended through a dynamically loadable module system, and is able to process a large number of...

The sudo command is useful for executing commands with privileges usually outside of the scope of your user. This guide will discuss how to edit the configuration file in order to customize the way sudo functions.

In this guide, we will show you how to create and configure a self-signed TLS/SSL certificate with the Apache web server on Ubuntu 20.04.

Django is a full-featured Python web framework for developing dynamic websites and applications. Using Django, you can quickly create Python web applications and rely on the framework to do a good deal of the heavy li...

In this tutorial, you will configure Nginx as a reverse proxy to securely direct client requests to Jenkins.

In this guide, we will show you how to create and configure a self-signed TLS/SSL certificate with the Apache web server on a CentOS 8 machine.

Let’s Encrypt is a Certificate Authority (CA) that facilitates obtaining and installing free TLS/SSL certificates, thereby enabling encrypted HTTPS on web…

Nextcloud, a fork of ownCloud, is a file sharing server that permits you to store your personal content, like documents and pictures, in a centralized location, much like Dropbox. In this tutorial, we will install and...

In this guide, we'll go over how to install the software needed for NFS functionality on Ubuntu 20.04, configure two NFS mounts on a server and client, and mount and unmount the remote shares.