apt-get update && apt-get install deb-multimedia-keyring && apt-get update
 gpg --keyserver hkp://pgp.mit.edu:11371 --recv-keys 6A11800F  && gpg --export --armor 0F7992B0  | apt-key add -

apt-key adv --keyserver keyserver.ubuntu.com --recv-keys F24AEA9FB05498B7
wget -q -O - http://unofficial.debian-maintainers.org/project/openpgp/archive-key.asc | apt-key add -
wget -q http://www.webmin.com/jcameron-key.asc -O- | apt-key add -

