How to use firewall to block specific sites and games?

[capote (Marko)]

That works fine if I can specify dedicated domains to block inside a custom category.
But is this possible to block traffic classes like according nDPI-Protocols?

I’m struggling with that…

Firewall - time based access for host groups

Finally, I would like to block internet use overnight for the children. I wanted to approach the solution step by step and in the first step I wanted to prevent a client from using the internet (in my thinking traffic to RED or from RED???). In a next step I would try to plan this time controlled. In a further step maybe more specific like “block everything but iTunes music”. So I wanted to get a solution step by step on the one hand and on the other hand I wanted to improve my understanding …