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
Credits
About the Author
www.PacktPub.com
Preface
Index

Introduction


When you have a large user base using multiple services across the organization, a centralized authentication service becomes a need rather than a luxury. It becomes necessary to quickly add new user accounts across multiple services when a new user comes in, and deactivate the respective access tokens when a user leaves the organization. A centralized authentication service enables you to quickly respond by updating the user database on a single central server.

Various different services are available to set up centralized authentication. In this chapter, we will learn how to set up a centralized authentication service using a Lightweight Directory access Protocol (LDAP). A directory is a special database designed specifically for high volume lookups. LDAP directories are tree-based data structures, also known as Directory Information Trees (DIT). Each node in a tree contains a unique entry with its own set of attributes.

LDAP is specifically designed for high volume read systems...