Blocking icloud private relay "nicely"
I would like to block "icloud private relay" in such a way that the user would be notified and able to continue without icloud private relay. Apple's recommended way to do this is to block DNS requ...
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I'd think if you block QUIC, that would take care of it. I think Cato recommends you do this anyway.
If for some reason you can't block QUIC completley via the internet firewall, I suppose you could make a custom app for UDP/443 to the relevant domains and block that.
iCloud Private Relay uses QUIC, a new standard transport protocol based on UDP. QUIC connections in Private Relay are set up using port 443
