# add-apt-repository ppa:maxmind/ppa
Cannot add PPA: 'ppa:maxmind/ppa'.
Please check that the PPA name or format is correct.
I've exhausted the suggestions from various google searches on similar problems.
Also tried:
# add-apt-repository "deb http://ppa.launchpad.net/maxmind/ppa/ubuntu trusty main"
apt-get update
...
Reading package lists... Done
W: GPG error: http://ppa.launchpad.net trusty InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY DE1997DCDE742AFA
Ubuntu 14.04 system clean build Behind proxy, with http_proxy and https_proxy variables set and tested.
Refreshed CA's
Time to add PPA
I've exhausted the suggestions from various google searches on similar problems.
Also tried: