book

Practical Linux Security Cookbook

by Tajinder Kalsi

April 2016

Beginner to intermediate

276 pages

5h 32m

English

Packt Publishing

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What this book covers

Getting readyHow to do it…How it works…There's more…See also
Downloading the example codeDownloading the color images of this bookErrataPiracyQuestions
Introduction
Developing a security policy
How to do it…How it works…
How to do it…How it works…There's more…
Getting readyHow to do it…How it works…See also
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…There's more…Vulnerability assessment
Getting readyHow to do it…How it works…See also
Getting readyHow to do it…How it worksThere's more…Null or default passwordsIP spoofingEavesdroppingService vulnerabilitiesDenial of Service (DoS) attack
Introduction
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it worksThere's more…
How to do it…
Viewing file and directory details using the ls commandGetting readyHow to do it…How it works…
Getting readyHow to do it…How it works…There's more...
Getting readyHow to do it…There's more…
Getting ready…How it works…There's more…
Getting readyHow to do it…How it works…
User authentication and loggingGetting StartedHow to do it...How it works...
Getting readyHow to do it...How it works...
Getting startedHow to do it?How it works...
Getting readyHow to do it…How it works...There's more...
Getting started...How to do it...How it works...
Remote server/host access using SSHGetting readyHow to do it…How it works…
Getting readyHow to do it…How it works…There's more…
Getting readyHow to do it...How it works...
Getting readyHow to do it...How it works...
Getting readyHow to do it...How it works...
Managing the TCP/IP networkGetting readyHow to do it...How it works...
Getting ReadyHow to do it...How it works...
Getting ReadyHow to do it...How it works...
Getting ReadyHow to do it...How it works...
Getting ReadyHow to do it?How it works...
Linux sXIDGetting ReadyHow to do it...How it works...
Getting ReadyHow to do it?How it works...
Getting ReadyHow to do it...How it works...
Getting ReadyHow to do it...How it works...
Getting ReadyHow to do it...How it works...
Getting readyHow to do it...How it works...
Kali LinuxGetting readyHow to do it...How it works...
Getting readyHow to do it...How it works...
Getting readyHow to do it...How it works...
Getting readyHow to do it...How it works...
Getting readyHow to do it?How it works...
Understanding the bash vulnerability through ShellshockGetting ReadyHow to do it…How it works…
Getting ReadyHow to do it…How it works…
Getting readyHow to do it…How it works…
Getting readyHow to do it...How it works...
Viewing and managing log files using LogcheckGetting readyHow to do it…How it works…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works
Getting readyHow to do it…How it works
Getting readyHow to do it…How it works
Getting readyHow to do it…How it works
Getting readyHow to do it…How it works

Content preview from Practical Linux Security Cookbook

Chapter 2. Configuring a Secure and Optimized Kernel

In this chapter, we will discuss the following:

Requirements for building and using a kernel
Creating a USB boot media
Retrieving a kernel source
Configuring and building a kernel
Installing and booting from a kernel
Testing and debugging a kernel
Configuring a console for debugging using Netconsole
Debugging a kernel on boot

Introduction

For all Linux distributions, including Ubuntu, CentOS, and Fedora, a kernel is vital. It is by default installed for most Linux versions when the OS is installed, hence we generally don't have to compile the kernel. Even when there is a critical update to be installed in the kernel, it can be done using apt-get or yum on the Linux system.

However, there might be few situations ...