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Configuration on a systemd-resolved system with other DNS servers

Hi there.

NextDNS recommends to configure its DNS-servers inside etc/systemd/resolved.conf. But when I do so, no other DNS-resolution is possible (for instance for my internal hostnames or for my companies DNS servers).

How can this be configured so DNS-routings from the active interfaces are used? Basically this logic right here:

Per default, all DNS queries are served by NextDNS, only if an interface has DNS-routing and / or search domains configured. Then these are used instead.

I wish to have the benefits of NextDNS available while still being able to properly resolve internal hostnames when I'm working in the office or whan I have VPN activated.

Any help is highly appreciated.

1 reply

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    • Thomas_Gfeller
    • 1 yr ago
    • Reported - view

    I solved it. The issue was that the suggested NextDNS systemd-resolved config included DNSOverTLS=yes which was a global setting. Resulting in my custom DNS servers failing to resolve internal hostnames (because they were not able to answer to DNSOverTLS requests).

    I solved it by creating a specific file to disable DNSOverTLS for said office-network (inside /etc/systemd/network/).

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