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

Conducting integrity checks of the installation medium using checksum

Whenever we download an image file of any Linux distribution, it should always be checked for correctness and safety. This can be achieved by doing an MD5 checksum of the downloaded image with the MD5 value of the correct image.

This helps in checking the integrity of the downloaded file. Any changes to the files can be detected by the MD5 hash comparison.

Whenever any changes take place in the downloaded files, the MD5 hash comparison can detect it. The larger the file size, the higher the possibility of changes in the file. It is always recommended to do the MD5 hash comparison for files such as operating system installation files on a CD.