deb [arch=amd64] https://repo.skype.com/deb unstable main
apt update && apt install skypeforlinux
deb http://www.vollstreckernet.de/debian/ (http://www.vollstreckernet.de/debian/) testing amule
but adding this key:
apt-key adv --recv-keys --keyserver wwwkeys.eu.pgp.net D63913EF50D0AE60
or this:
# gpg --keyserver pgp.mit.edu --recv-keys D63913EF50D0AE60 # gpg --armor --export D63913EF50D0AE60 | apt-key add -
i have always errorCan you help me?
Thanks