Tutorials

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.

Introduction> Introduction # After creating a new Ubuntu 18.04 server, you should take some configuration steps as part of an initial server setup in order to increase security and facilitate management later.

Introduction> Introduction # OAuth 2 is an authorization framework that enables applications — such as Facebook, GitHub, and DigitalOcean — to obtain limited access to user accounts on an HTTP service.

Status: Deprecated> Status: Deprecated # This article covers a version of Ubuntu that is no longer supported. If you are currently operate a server running Ubuntu 12.04, we highly recommend upgrading or migrating to a supported version of Ubuntu:

Introduction> Introduction # When running a website, there are often parts of the site that you’ll want to restrict from visitors. Web applications may provide their own authentication and authorization methods, but the web server itself can also be used to restrict access if these are inadequate or unavailable.

A previous version of this tutorial was written by Sergey Zhukaev. Introduction> Introduction # Nginx is a fast and reliable open-source web server. It gained its popularity due to its low memory footprint, high scalability, ease of configuration, and support for a wide variety of protocols.

Status: Deprecated> Status: Deprecated # This article covers a version of Ubuntu that is no longer supported. If you are currently operate a server running Ubuntu 12.04, we highly recommend upgrading or migrating to a supported version of Ubuntu:

When I first dived into JavaScript and programming; I never really thought about immutable data. I would say animal is panda, then animal is lion. var animal = 'panda'; animal = 'lion'; I was free to do whatever I wanted with my data!

Introduction> Introduction # The LEMP software stack is a group of software that can be used to serve dynamic web pages and web applications. This is an acronym that describes a Linux operating system, with an Nginx web server.

Introduction> Introduction # Formatting code consistently is a challenge, but modern developer tools make it possible to automatically maintain consistency across your team’s codebase. In this article, you’ll set up Prettier to automatically format your code in Visual Studio Code, also known as VS Code.

Introduction> Introduction # When setting up a web server, there are often sections of the site that you wish to restrict access to. Web applications often provide their own authentication and authorization methods, but the web server itself can be used to restrict access if these are inadequate or unavailable.

Introduction> Introduction # In this tutorial, we will activate and learn how to manage URL rewrites using Apache2’s mod_rewrite module. This tool allows us to rewrite URLs in a cleaner fashion, translating human-readable paths into code-friendly query strings.

The author selected the Free and Open Source Fund to receive a donation as part of the Write for DOnations program. Introduction> Introduction # Apache Kafka is a popular distributed message broker designed to efficiently handle large volumes of real-time data.

Status: Deprecated> Status: Deprecated # This article covers a version of Ubuntu that is no longer supported. If you are currently operate a server running Ubuntu 12.04, we highly recommend upgrading or migrating to a supported version of Ubuntu:

Introduction> Introduction # Apache and Nginx are two popular open source web servers often used with PHP. It can be useful to run both of them on the same virtual machine when hosting multiple websites which have varied requirements.

Introduction> Introduction # A large part of being a system administrator is collecting accurate information about your servers and infrastructure. There are a number of tools and options for gathering and processing this type of information.

Introduction> Introduction # Time series provide the opportunity to forecast future values. Based on previous values, time series can be used to forecast trends in economics, weather, and capacity planning, to name a few.

Many websites and applications start off with their web server and database backend hosted on the same machine. With time, though, a setup like this can become cumbersome and difficult to scale.

Introduction> Introduction # MySQL is an open-source database management system, commonly installed as part of the popular LAMP (Linux, Apache, MySQL, PHP/Python/Perl) stack. It implements the relational model and uses Structured Query Language (better known as SQL) to manage its data.

Introduction> Introduction # This article will introduce you to Angular’s ViewChild decorator. There may be situations where you want to access a directive, child component, or a DOM element from a parent component class.