SquidGuard + OpenVpn not filtering

New to NethServer -looks great I’ve been usig pfSense up to now.

My problem is:
Content Web Filtering (SquidGuard?) does not filter when client is connected through VPN. Using Transparent Proxy with SSL.
How do I configure that? Thanks

Welcome to NethServer Community!

By default it does not work with transparent mode but you may create a custom template: