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Practical Linux Security Cookbook

You're reading from   Practical Linux Security Cookbook Secure your Linux machines and keep them secured with the help of exciting recipes

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Product type Paperback
Published in Apr 2016
Publisher Packt
ISBN-13 9781785286421
Length 276 pages
Edition 1st Edition
Tools
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Authors (2):
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Michael A Lindner Michael A Lindner
Author Profile Icon Michael A Lindner
Michael A Lindner
Tajinder Kalsi Tajinder Kalsi
Author Profile Icon Tajinder Kalsi
Tajinder Kalsi
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Toc

Table of Contents (12) Chapters Close

Preface 1. Linux Security Problems 2. Configuring a Secure and Optimized Kernel FREE CHAPTER 3. Local Filesystem Security 4. Local Authentication in Linux 5. Remote Authentication 6. Network Security 7. Security Tools 8. Linux Security Distros 9. Patching a Bash Vulnerability 10. Security Monitoring and Logging Index

Using Squid proxy


Squid is a web proxy application with a variety of configurations and uses. Squid has a large number of access controls, and supports different protocols, such as HTTP, HTTPS, FTP, SSL, and so on.

In this section we will see how to use Squid as an HTTP proxy.

Getting Ready

To install and use Squid on a particular system on a network, ensure that the particular system has enough physical memory, because Squid also works as a cache proxy server and thus needs space to maintain the cache.

We are using a Ubuntu system for our example and Squid is available in Ubuntu repositories, so we need to ensure that our system is up to date. For doing this we run the following command:

apt-get update

After that, run the following command:

apt-get upgrade

How to do it...

To install and configure Squid on our system, we have to take the following steps:

  1. The first step is to install the squid package, and to do so, we run the command as follows:

  2. As soon as the installation of Squid completes, it...

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