[SOLVED] : You will have to enable the component called 'universe' backtrack

1.  In my attempts to try few tools like dnswalk and fierce...I used to see these messages that read like :

you will have to enable the component called 'universe'

Click on the image to Enlarge

So after many attempted failures that I am not going to share here...I am bringing out steps on how to resolve and start using the tools....

Click on the image to Enlarge

So the first command is to install synaptic that you can simply do by typing the following command as shown in the screen shot above :

apt-get install synaptic

Click on the image to Enlarge

After synaptic is installed you need to install gdebi by typing in the following command as shown in the screen shot above :

apt-get install gdebi

Click on the image to Enlarge

Click on the image to Enlarge

 Now after installing these two tools synaptic and gdebi,you have to follow the screen shots..Go to Systems > Administration > Synaptic Package Manager

Click on the image to Enlarge

 As the Synaptic Package Manager window opens up...go to Settings > Repositories

Click on the image to Enlarge

Then you see this...all the check boxes will be disabled as default as seen in the screen shots below :

Click on the image to Enlarge

 Just check all of them and click close

Click on the image to Enlarge

 Then click on Reload and you will see the downloading Package Information window as seen below :

Click on the image to Enlarge

 Then you simply reboot and try installing dnswalk...no issues...and you see going ahead with success...

Click on the image to Enlarge