How can I install Skype in Knoppix?

[pastabake]

I finaly had success with this yesterday. Knoppix 7 seems far far slicker and any deb package seems to install. I don't understand how to use the dpkg command properly, I just added the following for Spotify and Skype respectively to my sources.list:

deb http://repository.spotify.com stable non-free
deb http://download.skype.com/linux/repos/debian/ stable non-free

then simply: sudo apt-get update

then: sudo apt-get install skype

it just worked!

[mikeymike]

I finaly had success with this yesterday. Knoppix 7 seems far far slicker and any deb package seems to install. I don't understand how to use the dpkg command properly, I just added the following for Spotify and Skype respectively to my sources.list:

deb http://repository.spotify.com stable non-free
deb http://download.skype.com/linux/repos/debian/ stable non-free

then simply: sudo apt-get update

then: sudo apt-get install skype

it just worked!

The code-free solution is to go into synaptic program manager and choose settings->repositories->new and add the information shown in the bottom of the list in the following window

then you go back to synaptic program manager and RELOAD.
then you search for skype and it should be there:


However, when you right-click it and "mark for installation", you are told it is NOT AUTHENTICATED:

What to do?