In this recipe, we will cover the process of updating Kali and configuring some extra tools which will be useful in later chapters and recipes. As Kali packages are constantly updated between releases, you will soon find that a newer set of tools are available than what were originally downloaded on your DVD ROM. We will start by updating our installation, obtaining an activation code for Nessus, and conclude by installing Squid.
Let's begin the process of applying updates and configuring extra security tools:
Update the local package index with the latest changes made in the repositories:
apt-get update
Upgrade the existing packages:
apt-get upgrade
Upgrade to the latest version (if available):
apt-get dist-upgrade
Obtain an activation code for Nessus by registering at http://www.nessus.org/products/nessus/nessus-plugins/obtain-an-activation-code.
Activate Nessus by executing the following command:
/opt/nessus/bin/nessus...