FAQ

Introduction> Introduction # DNS, or the Domain Name System, is often a very difficult part of learning how to configure websites and servers. Understanding how DNS works will help you diagnose problems with configuring access to your websites and will allow you to broaden your understanding of what’s going on behind the scenes.

Introduction> Introduction # There are many scenarios in which you might have to move your data and operating requirements from one server to another. You may need to implement your solutions in a new datacenter, upgrade to a larger machine, or transition to new hardware or a new VPS provider.

Note: This tutorial uses a deprecated version of Ubuntu. Click here to read an updated version written for Ubuntu 20.04. Sqlite is a very simple and fast open source SQL engine.

Introduction> Introduction # Linux is a family of free and open-source operating systems based on the Linux kernel. Operating systems based on Linux are known as Linux distributions or distros. Examples include Debian, Ubuntu, Fedora, CentOS, Gentoo, Arch Linux, and many others.

Introduction> Introduction # Understanding networking is a fundamental part of configuring complex environments on the internet. This has implications when trying to communicate between servers efficiently, developing secure network policies, and keeping your nodes organized.

Status: Deprecated> Status: Deprecated # This article is deprecated and no longer maintained. It may still be useful as a reference, but may not be up to date with the latest best practices.

Introduction> Introduction # OpenSSL is a versatile command line tool that can be used for a large variety of tasks related to Public Key Infrastructure (PKI) and HTTPS (HTTP over TLS).

Introduction> Introduction # When accessing a web server or application, every HTTP request that is received by a server is responded to with an HTTP status code. HTTP status codes are three-digit codes, and are grouped into five different classes.

What is FTP?> What is FTP? # FTP is a way to transfer files between hosts over the internet. It is especially helpful as a way to upload or download files to or from a site quickly.