Openwrt 23.05 / block by domain / Blocking roblox

I'm looking for a solution to block roblox on my daughter's laptop potentially M-F if possible. I have openwrt dns forwarding using two pihole servers on my network. I don't want to outright block internet access to her laptop, because she still needs to access her school portal for homework and such. Is there a somewhat straightfoward way to approach this?

I've googled around, and there doesn't seem to be a foolproof way to achieve to blocking domains by mac/IP. If there is a solution to block domains on a network level, I can workaround that as well.

Kids google too, VPN is one click away.
It is well documented that roblox entrance is *.roblox.com

Have you considered endpoint security and/or don't give her admin, then configure (windows/OS) policies?

As mentioned above there will always be a workaround.
Plus depending on how draconian the measures get you will end up with user dissatisfaction and increased workload.
It also depends on how motivated and technically adept the user is, plus whether they can pay for something online.
The users could even just resort to playing other games =P.

My solution was assign a chromebook(separate computer) for schoolwork hahaha. That doesn't stop other games though. i.e. separate the work and play computer.

If it has to be the same computer regardless I'd have a look at screen time limits or windows logon options for gpedit.msc and then create two users.

She is asking me to block it. What method are you referring to then?

Add forwarder dns /roblox.com/

Generically I guess this would be called "dns filtering"? Block/give bogus domain lookups so the application can't get to the resulting servers.

You could then extend this to doing DNS hijacking, blocking dns over https to stop the laptop attempting to use different domain name servers.

An alternative approach would be to have the firewall do the dns lookups for more specific endpoints then block those IP's.

Anyway after a quick google, as I have no experience with roblox....

rbx.com

also

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