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@quietsy
quietsy committed May 4, 2024
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Expand Up @@ -7,8 +7,8 @@ Detailed in the paper [Characterizing Smart Home IoT Traffic in the Wild](https:
Hardcoded DNS can be prevented with the following actions:

- Catch all network traffic on ports 53, 853 and NAT it back to the local DNS.
- Block all traffic to public DNS IPs that wasn't made by the local DNS.
- Block all public DNS domains used by DoH using [DoH-IP-blocklists](https://github.com/dibdot/DoH-IP-blocklists).
- Block all traffic to public DoH IPs using [DoH-IP-blocklists](https://github.com/dibdot/DoH-IP-blocklists).
- Block all public DoH domains using [DoH-IP-blocklists](https://github.com/dibdot/DoH-IP-blocklists).

The following rules were made using OPNSense and AdGuardHome to achieve it.

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