Glossary

What Is a Superuser? — step-by-step DevOps tutorial on Progressive Robot

What Is a Superuser?

A superuser is an account with broad privileges, making it useful for system administration. This account is known by other names as well, such as “root”, “administrator”, and “supervisor”. The superuser’s privileges are unrestricted and it can perform any available action on a system, including potentially dangerous ones like adding or deleting users or installing and removing software.

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What is MariaDB? — step-by-step Databases tutorial on Progressive Robot

What is MariaDB?

MariaDB is an open-source relational database management system. As with other relational databases, MariaDB stores data in tables made up of rows and columns. Users can define, manipulate, control, and query data using Structured Query Language, more commonly known as…

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What Is a Server? — step-by-step DevOps tutorial on Progressive Robot

What Is a Server?

A server is a computer program or device that provides services or resources requested by other programs or devices, known as clients. A server may have many clients at once, or a single client can use multiple servers. Servers also offer a variety of functions, ranging from website and web application hosting, to providing shared disk access, printer connections, and database services.

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

What is Big Data?

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 types of workloads, and using it to supplement their existing analysis and business tools. Tools that exist in this space offer different options for interpolating data into a system, storing it, analyzing it, and working with it through visualizations.

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

What is a Backup?

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 hosting services, or backup programs.

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

What is LEMP?

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

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

What is SQL?

Structured Query Language — commonly known as SQL — is a language used to define, control, manipulate, and query data held in a relational database.

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

What is a CPU?

The central processing unit, or CPU, is a vital component of a computer system. Often referred to as the “brain” of a computer, the CPU receives instructions from software programs or connected hardware, and performs the mathematical and logical operations required to produce the desired…

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What is Platform as a Service (PaaS)? — step-by-step DevOps tutorial on Progressive Robot

What is Platform as a Service (PaaS)?

Platform as a Service (PaaS) is a category of cloud computing in which the underlying infrastructure (such as the operating system and other software) is installed, configured, and maintained by the provider, allowing users to focus their efforts on developing and deploying apps in a tested and standardized environment.

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

What is CSS?

CSS (Cascading Style Sheets) is a stylesheet language used to control the presentation of websites. Alongside HTML and JavaScript, CSS is one of the core technologies of the World Wide Web.

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