Can I have advice or suggestion to block adult sites on my LAN Opnsense?
Use the 'family protection' DNS servers of AdGuard:
https://adguard.com/en/adguard-dns/overview.html
You can use the proxy - docs are here: https://docs.opnsense.org/manual/proxy.html
Sir fabian. I followed the webproxyfilter. Nothing changes. I can still open adult sites
Problem solved with Family Protection ADGuard! Thank you.
You're welcome :)