Thanks for your reply, even though you no longer use Ubuntu! Good pointer on apt-key, I will investigate further.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/277493 Title: /etc/cron.daily/apt incorrectly overrides apt.conf proxy settings with GNOME proxy settings, losing proxy exclusion list, and causes updates to fail -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs