Found the culprit: apt-cacher-ng which I use as a local cache >From the log: Sun Mar 2 09:39:23 2014|Returning to last state, 1 Sun Mar 2 09:40:26 2014|Detected incoming connection from the TCP socket Sun Mar 2 09:40:26 2014|Client name: ::1 Sun Mar 2 09:40:26 2014|Raw request URI: http://keyserver.ubuntu.com:11371/pks/lookup?op=get&options=mr&search=0x15331454B72FD7EC Sun Mar 2 09:40:26 2014|Prepared response header for user: HTTP/1.1 403 Prohibited port or config error (double proxy) Content-Length: 216 Content-Type: text/html Date: Sun Mar 2 01:40:26 2014 Server: Debian Apt-Cacher NG/0.7.2 Connection: close
apt-cacher-ng is version 0.7.2-1ubuntu2.1 from precise-updates ** Package changed: gnupg (Ubuntu) => apt-cacher-ng (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/993426 Title: adding a PPA key in pbuilder fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt-cacher-ng/+bug/993426/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs