I have setup Squid proxy with Transparent HTTPS, however i am unable to get the proxy to work with user authentication. When the clients behind firewall could get access to internet without any authentication (local user) . Kindly help me to fix this.
I have validated the following.
1. Local user has been created
2. Firewall authentication has been set to Local Database .
from the source (squid) http://wiki.squid-cache.org/Features/Authentication#Authentication_in_interception_and_transparent_modes (http://wiki.squid-cache.org/Features/Authentication#Authentication_in_interception_and_transparent_modes)
Quote
Authentication in interception and transparent modes
Simply said, it's not possible to authenticate users using proxy authentication schemes when running in interception or transparent modes. See SquidFaq/InterceptionProxy for details on why.
Maybe a captive portal is more suitable for your needs.
Thanks for the info.