Data analysis refers to the practice of investigating the structure of data and using it to identify patterns and possible solutions to problems. Within this domain, data science draws on methodologies from statistics, mathematics, and computer science to analyze data from past events, and to…
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.
A Read-Eval-Print Loop, or REPL, is a computer environment where user inputs are read and evaluated, and then the results are returned to the user. REPLs provide an interactive environment to explore tools available in specific environments or programming languages. Some examples include the Node.js console, IPython, the Bash shell, and the developer console found in most web browsers.
A Content Security Policy (CSP) is a mechanism for web developers to increase the security of their websites. By setting a Content Security Policy, web developers can instruct web browsers to only load resources from certain trusted domains, enforce secure HTTPS connections, and even report policy violations as they occur. This can prevent many content injection and cross-site scripting (XSS) vulnerabilities, which often lead to data leaks, website vandalism, and malware distribution.
An HTML element is a component of an HTML document that tells a web browser how to structure and interpret a part of the HTML document. HTML elements can contain formatting instructions, semantic meaning, and content.
In computing, debugging is the process of looking for and then resolving issues that prevent software from running correctly. Software bugs refer to an error or fault in the codebase that leads to an unexpected result, or unintended outcomes. Because of this naming convention, the process…
Generally, Linux refers to a group of open-source operating system distributions built around the Linux kernel. In the strictest sense, Linux refers only to the presence of the kernel itself. Linus Torvalds first released the Linux operating system kernel in 1991, as an alternative to Unix, a…
Security Enhanced Linux (SELinux) is an access control system that is built into the Linux kernel. It is used to enforce policies that define which resources users, programs and services can use on a system. In its default enforcing mode, SELinux will deny and log any unauthorized attempts to…
A control panel is a graphical interface that allows users to manage settings and features. They are often found in the context of native apps on desktop or mobile operating systems, where they can be used to configure applications and the operating system itself, or on the web, where they most…
An HTML tag is a piece of markup language used to indicate the beginning and end of an HTML element.
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