Before we start testing web applications' security, we need to be sure that we have all the necessary up-to-date tools. This recipe covers the basic task of keeping Kali Linux and its tools at their most recent versions.
We start from having Kali Linux installed as the main operating system on a computer with Internet access; the version that we will be using through this book is 2.0. You can download the live CD and installer from https://www.kali.org/downloads/.
Once you have a working instance of Kali Linux up and running, perform the following steps:
su
to switch the user or sudo
to execute single commands if using a regular user is preferred instead of root.apt-get update
command. This will download the updated list of packages (applications and tools) that are available to install.apt-get update
apt-get upgrade
apt-get dist-upgrade
In this recipe, we have covered a basic procedure for package update in Debian-based systems (such as Kali Linux). The first call to apt-get
with the update
parameter downloaded the most recent list of packages available for our specific system in the configured repositories. After it downloads and installs all the packages that have the most recent versions in the repository, the dist-upgrade
parameter downloads and installs system packages (such as kernel and kernel modules) not installed with upgrade
.
In this book, we assume that Kali Linux is installed as the main operating system on the computer; there is also the option of installing it in a virtual machine. In such a case, skip the recipe called Installing VirtualBox and configure the network options of your Kali VM as stated in Configuring virtual machines for correct communication.
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