Did anybody try the goal described below. We are going to do so and want probe here how the chances for success are.
The goal is to have apt-cacher in following environment.
-) Ubuntu 14.04 LTS Desktop or later Ubuntu LTS Desktop
..means Apache Web-Server needs to be installed and configured too
-) mentioned Ubuntu is a virtual machine powered by VirtualBox
.. it uses NAT Network Adapter towards physical host.
-) apt-cacher clients are also virtual machines on the same physical host (VirtualBox and other sw virtualization solutions).
..One apt-cacher client runs on the same virtual machine as the cacher
-) later, some clients on other physical hosts but the same local network