[tor-relays] PSA regarding Quad9 DNS Resolver

nusenu nusenu-lists at riseup.net
Fri May 11 16:24:00 UTC 2018

Toralf Förster:
> On 05/11/2018 01:41 PM, Nathaniel Suchy (Lunorian) wrote:
>> Like OpenDNS, Quad9 is a censoring DNS resolver
> Is this true for too ?

> Is there a service that Quad9 offers that does not have the blocklist
> or other security?
> The primary IP address for Quad9 is, which includes the
> blocklist, DNSSEC validation, and other security features. However,
> there are alternate IP addresses that the service operates which do
> not have these security features. These might be useful for testing
> validation, or to determine if there are false positives in the Quad9
> system.
> Secure IP: Provides: Security blocklist, DNSSEC, No EDNS
> Client-Subnet sent. If your DNS software requires a Secondary IP
> address, please use the secure secondary address of
> Unsecured IP: Provides: No security blocklist, DNSSEC, sends
> EDNS Client-Subnet. If your DNS software requires a Secondary IP
> address, please use the unsecured secondary address of
> Note: Use only one of these sets of addresses  secure or unsecured.
> Mixing secure and unsecured IP addresses in your configuration may
> lead to your system being exposed without the security enhancements,
> or your private data may not be fully protected


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