Book Image

Ubuntu Server Cookbook

By : Uday Sawant
Book Image

Ubuntu Server Cookbook

By: Uday Sawant

Overview of this book

Ubuntu is one of the most secure operating systems and defines the highest level of security as compared other operating system. Ubuntu server is a popular Linux distribution and the first choice when deploying a Linux server. It can be used with a $35 Raspberry Pi to top-notch, thousand-dollar-per-month cloud hardware. Built with lists that there are 4 million + websites built using Ubuntu. With its easy-to-use package management tools and availability of well-known packages, we can quickly set up our own services such as web servers and database servers using Ubuntu. This book will help you develop the skills required to set up high performance and secure services with open source tools. Starting from user management and an in-depth look at networking, we then move on to cover the installation and management of web servers and database servers, as well as load balancing various services. You will quickly learn to set up your own cloud and minimize costs and efforts with application containers. Next, you will get to grips with setting up a secure real-time communication system. Finally, we’ll explore source code hosting and various collaboration tools. By the end of this book, you will be able to make the most of Ubuntu’s advanced functionalities.
Table of Contents (20 chapters)
Ubuntu Server Cookbook
About the Author

Creating web client with Strophe.js

In this recipe, we will learn how to use web technologies to create a web-based XMPP client. I will demonstrate the use of the popular JavaScript library StropheJS to create a basic web client and connect to the XMPP server.

Strophe is a collection of libraries that can be used to communicate with the XMPP server. It contains libstrophe, which is a C-based implementation of XMPP client functionalities, and Strophe.js, which is a JavaScript implementation. Strophe provides core XMPP client functionality and can be extended with custom modules. The community has contributed various extensions to support additional XMPP functions.

With a limit on page count, I will focus on a simple demo of Strophe.js where we download the code and modify an example to connect with our XMPP server.

Getting ready

You will need the XMPP server installed and running. You can also use public XMPP servers, but make sure that you register with them and obtain your username (JID) and...