Book Image

Practical Linux Security Cookbook - Second Edition

By : Tajinder Kalsi
Book Image

Practical Linux Security Cookbook - Second Edition

By: Tajinder Kalsi

Overview of this book

Over the last few years, system security has gained a lot of momentum and software professionals are focusing heavily on it. Linux is often treated as a highly secure operating system. However, the reality is that Linux has its share of security ?aws, and these security ?aws allow attackers to get into your system and modify or even destroy your important data. But there’s no need to panic, since there are various mechanisms by which these ?aws can be removed, and this book will help you learn about different types of Linux security to create a more secure Linux system. With a step-by-step recipe approach, the book starts by introducing you to various threats to Linux systems. Then, this book will walk you through customizing the Linux kernel and securing local files. Next, you will move on to managing user authentication both locally and remotely and mitigating network attacks. Later, you will learn about application security and kernel vulnerabilities. You will also learn about patching Bash vulnerability, packet filtering, handling incidents, and monitoring system logs. Finally, you will learn about auditing using system services and performing vulnerability scanning on Linux. By the end of this book, you will be able to secure your Linux systems and create a robust environment.
Table of Contents (20 chapters)
Title Page
Copyright and Credits
Contributors
Packt Upsell
Preface
Index

Installing and configuring a basic LDAP server on Ubuntu


Lightweight Directory Access Protocol (LDAP) is a protocol for managing access to a file and directory hierarchy from some centralized location. LDAP is mainly used for centralized authentication.

An LDAP server helps in controlling who has access to read and update information in the directory.

Getting ready

To install and configure LDAP, we need to first create an Ubuntu server. The current version for Ubuntu server installation media can be found here: http://www.ubuntu.com/download/server.

After downloading, follow the steps provided to install an Ubuntu server.

We need a second system with a desktop version of Ubuntu installed. This will be used to access your LDAP server through a web interface.

Once this is done, we can proceed with the installation of LDAP.

How to do it...

We shall now start to install and configure LDAP on the Ubuntu server:

  1. We will first update the package list on the server from Ubuntu's repositories to get information...