I have squid-deb-proxy working fine without a problem without apt proxy authentication.
However when I add a proxy file to
/etc/apt/apt.conf.d and put in my proxy authentication inside this file. Running sudo apt-get update does not work it misses the update and ignores.
However when I move out or comment the file that squid-deb-proxy-client created inside
/etc/apt/apt.conf.d which is 30autoproxy and contains 1 line pointing to
/usr/share/squid-deb-proxy-client/apt-avahi-discover the APT-GET update works without a problem.
Note that observing the logs of
/var/log/squid-deb-proxy/access.log does not log any successful entry. Going without proxy logs successful entries and apt-get update works.
So bottom line how to make squid-deb-proxy-client on the main ubuntu machine to work thru proxy that has authentication.