Glossary

What is Apache? — step-by-step Web Servers tutorial on Progressive Robot

What is Apache?

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 interpreted languages without connecting out to separate software.

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What is Configuration Management? — step-by-step DevOps tutorial on Progressive Robot

What is Configuration Management?

Configuration management is the process of handling changes to a system in a way that assures integrity over time, typically involving tools and processes that facilitate automation and observability. Even though this concept didn’t originate in the IT industry, the term is broadly used to refer to server configuration management. In the context of servers, configuration management is also commonly referred to as *IT Automation* or *Server Orchestration*.

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What is Snap? — step-by-step DevOps tutorial on Progressive Robot

What is Snap?

Snap is an application packaging format for Linux-based operating systems. Snap includes powerful sandboxing and security features, such as file system isolation, automatic updates, and integrated dependency management. Snap applications, known as snaps, can be downloaded and installed using a…

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What is a Boolean? — step-by-step DevOps tutorial on Progressive Robot

What is a Boolean?

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 science. In programming, Booleans are used to make comparisons and to control the flow of a program.

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What is a VPN? — step-by-step Security tutorial on Progressive Robot

What is a VPN?

A VPN, short for virtual private network, is a means of establishing secure connections between remote computers. A VPN presents its connection as if it were a local private network, allowing for secure communications between servers.

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What is LAMP? — step-by-step Web Servers tutorial on Progressive Robot

What is LAMP?

LAMP refers to a collection of open-source software that is commonly used together to serve web applications. The term LAMP is an acronym that represents the configuration of a Linux operating system with an Apache web server, with site data stored in a MySQL database and dynamic content processed by PHP.

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What is APT? — step-by-step Linux tutorial on Progressive Robot

What is APT?

Advanced Package Tool, more commonly known as “APT”, is a collection of tools used to install, update, remove, and otherwise manage software packages on Debian and its derivative operating systems, including Ubuntu and Linux Mint.

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What is Joomla? — step-by-step CMS tutorial on Progressive Robot

What is Joomla?

Joomla is a highly customizable, free and open source web content management system (CMS) used to publish web content.

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What is DRY Development? — step-by-step DevOps tutorial on Progressive Robot

What is DRY Development?

DRY, which stands for ‘**d**on’t **r**epeat **y**ourself,’ is a principle of software development that aims at reducing the repetition of patterns and code duplication in favor of abstractions and avoiding redundancy.

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What is an Operating System? — step-by-step DevOps tutorial on Progressive Robot

What is an Operating System?

An operating system is system software that handles computer memory, software and hardware resources, and processes, while providing common services and programming interfaces for computer programs. Examples of popular operating systems include WindowsOS, MacOS, and Linux.

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