Tutorials

Introduction> Introduction # Nginx is one of the most popular web servers in the world and is responsible for hosting some of the largest and highest-traffic sites on the internet. It is more resource-friendly than Apache in most cases and can be used as a web server or a reverse proxy.

Introduction> Introduction # The Secure Shell Protocol (or SSH) is a cryptographic network protocol that allows users to securely access a remote computer over an unsecured network. Though SSH supports password-based authentication, it is generally recommended that you use SSH keys instead.

Introduction> Introduction # The Docker platform allows developers to package and run applications as containers. A container is an isolated process that runs on a shared operating system, offering a lighter weight alternative to virtual machines.

Introduction> Introduction # In this article, you will learn about dynamic style and class bindings in Vue.js. With the v-bind:style directive, you will visualize your font size on a click event.

Introduction> Introduction # The sed command, short for stream editor, performs editing operations on text coming from standard input or a file. sed edits line-by-line and in a non-interactive way.

Introduction> Introduction # SSH, or secure shell, is an encrypted protocol used to administer and communicate with servers. When working with a CentOS server, chances are, you will spend most of your time in a terminal session connected to your server through SSH.

Introduction> Introduction # Let’s Encrypt is a Certificate Authority (CA) that provides an easy way to obtain and install free TLS/SSL certificates, thereby enabling encrypted HTTPS on web servers. It simplifies the process by providing a software client, Certbot, that attempts to automate most (if not all) of the required steps.

Introduction> Introduction # In programming, there will be many occasions in which you will want different blocks of code to run depending on user input or other factors. As an example, you might want a form to submit if each field is filled out properly, but you might want to prevent that form from submitting if some required fields are missing.

Introduction> Introduction # An array is a data structure that represents a list of values, called elements. Arrays let you store multiple values in a single variable. In Ruby, arrays can contain any data type, including numbers, strings, and other Ruby objects.

Introduction> Introduction # The Apache web server is the most popular way of serving web content on the internet. It accounts for more than half of all active websites on the internet and is extremely powerful and flexible.

Introduction> Introduction # cron provides a way to repeat a task at a specific time interval. There may be repetitive tasks such as logging and performing backups that need to occur on a daily or weekly or monthly basis.

Status: Deprecated> Status: Deprecated # This article is deprecated and no longer maintained. Reason> Reason # The techniques in this article are outdated and may no longer reflect Docker best-practices.

Getting Started> Getting Started # You will need to open an SSH connection on your cloud server as the root user or an SSH connection to a user with sudo access.

Introduction> Introduction # Django is a powerful web framework that can help you get your Python application or website off the ground. Django includes a simplified development server for testing your code locally, but for anything even slightly production related, a more secure and powerful web server is required.

Introduction> Introduction # List comprehensions offer a succinct way to create lists based on existing lists. When using list comprehensions, lists can be built by leveraging any iterable, including strings and tuples.

Introduction> Introduction # Style guides allow us to write consistent, reusable, and clean code. These rules can be automated and enforced with linters. This will spare you from manually checking for indentation or using single quotes or double-quotes.

Introduction> Introduction # You will likely encounter a scenario where you will want to preserve the original aspect ratio when working with images. Preserving the aspect ratio will prevent images from appearing distorted by either being stretched or squished.

Introduction> Introduction # A reverse proxy is a type of proxy server that takes HTTP(S) requests and transparently distributes them to one or more backend servers. Reverse proxies are useful because many modern web applications process incoming HTTP requests using backend application servers.

Introduction> Introduction # WebSocket is the internet protocol that allows for full-duplex communication between a server and clients. This protocol goes beyond the typical HTTP request and response paradigm. With WebSockets, the server may send data to a client without the client initiating a request, thus allowing for some very interesting applications.