To get the most out of this book

To get the most out of this book, readers should have a basic understanding of the Linux filesystem and administration. They should be aware of the basic commands of Linux, and knowledge about information security would be an added advantage.

This book will include practical examples on Linux security using inbuilt Linux tools as well as other available open source tools. As per the recipe, readers will have to install these tools if they are not already installed in Linux.

Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "Mount the downloaded WebStorm-10*.dmg disk image file as another disk in your system."

Any command-line input or output is written as follows:

$ mkdir css
$ cd css

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Select System info from the Administration panel."

Warnings or important notes appear like this.

Tips and tricks appear like this.