Book Image

BackTrack - Testing Wireless Network Security

By : Kevin Cardwell
Book Image

BackTrack - Testing Wireless Network Security

By: Kevin Cardwell

Overview of this book

Wireless networks are everywhere. You have probably set one up yourself, but have you ever wondered just how safe you are while browsing online? In the majority of cases, the default settings for your networks are not enough to protect you. With your data being transferred over the air, it can be easily plucked and used by anyone who knows how. Don't let it happen to you.BackTrack - Testing Wireless Network Security will help you secure your wireless networks and keep your personal data safe. With this book, you will learn how to configure your hardware for optimum security, find network security holes, and fix them.BackTrack - Testing Wireless Network Security looks at what tools hackers use and shows you how to defend yourself against them. Taking you from no prior knowledge all the way to a fully secure environment, this guide provides useful tips every step of the way. Learn how to select a wireless card to work with the Backtrack tools, run spectrum analysis scans using kismet, set up test networks, and perform attacks against wireless networks. Use the tools aircrack-ng and airodump-ng to crack the wireless encryption used on the network. You will learn everything you need to know to set up your wireless network for use within Backtrack and also how to defend yourself against the included attack tools.
Table of Contents (13 chapters)

Updating BackTrack

Now that we have set up the basics on our BackTrack machine, we want to update the tool and make sure that it is current. The developers of BackTrack have instituted an update capability using the apt-get utility. The first thing we want to do is to update the package. This requires a working Internet connection on your host; verify this by opening a web browser window and accessing a website. Once you have verified that you are connected to the Internet, go back to the BackTrack machine and enter the apt-get update command in a terminal window.

root@bt:~# apt-get update

Once you have entered the command, you should see a display similar to the one shown in the next screenshot:

Once the update has finished, there should be a message saying that the update was successful. Once the update is complete, the next thing to do is to upgrade the distribution itself; we do that also with the apt-get command. Enter apt-get dist-upgrade in the terminal window.

root@bt:~# apt-get dist-upgrade

The output of this command should be similar to the one in the following screenshot:

The output indicates the packages that are available and will be upgraded. Once you have reviewed them, you are ready to do the upgrade; enter Y to start the upgrade. Once the upgrade has finished, you are done with the main updates and upgrades for BackTrack.