What To Do When keyserver.ubuntu.com Is Down?: "You probably know that to use a Launchpad PPA repository, you must also import the GPG key. This is how it worked until Ubuntu Karmic Koala:
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 247510BE
And starting with Ubuntu Karmic Koala, you can add both the GPG key and the PPA repository, with a single command:
sudo add-apt-repository ppa:PPA_NAME
If you're curious as to how the rest of the tutorial works out on this ad infested site, go to WebUpd8.org."
