Install RFC6761 config file

[DL6ER]

By submitting this pull request, I confirm the following:

• I have read and understood the contributors guide, as well as this entire template.
• I have made only one major change in my proposed changes.
• I have commented my proposed changes within the code.
• I have tested my proposed changes, and have included unit tests where possible.
• I am willing to help maintain this change if there are issues with it later.
• I give this submission freely and claim no ownership.
• It is compatible with the EUPL 1.2 license
• I have squashed any insignificant commits. (git rebase)

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What does this PR aim to accomplish?:

Implement what a caching DNS server should do following RFC 6761

How does this PR accomplish the above?:

Add additional config similar to what OpenWRT does as well

What documentation changes (if any) are needed to support this PR?:

None

[pralor-bot]

This pull request has been mentioned on Pi-hole Userspace. There might be relevant details there:

https://discourse.pi-hole.net/t/please-advise-additional-dnsmasq-entries/48897/7

[PromoFaux]

I think only on the slowest of all the slowest machines in the world will one ever see the word Copying in this case. But sure makes more sense grammatically.

[pralor-bot]

This pull request has been mentioned on Pi-hole Userspace. There might be relevant details there:

https://discourse.pi-hole.net/t/pi-hole-ftl-v5-9-web-v5-6-and-core-v5-4-released/49544/1

[pralor-bot]

This pull request has been mentioned on Pi-hole Userspace. There might be relevant details there:

https://discourse.pi-hole.net/t/pi-hole-ftl-v5-10-1-web-v5-7-and-core-v5-5-released/50009/4

[pralor-bot]

This pull request has been mentioned on Pi-hole Userspace. There might be relevant details there:

https://discourse.pi-hole.net/t/ftl-v5-12-1-not-honoring-interface-and-bind-interfaces/52058/15

[pralor-bot]

This pull request has been mentioned on Pi-hole Userspace. There might be relevant details there:

https://discourse.pi-hole.net/t/test-tld-not-resolving/59573/4

[HVR88]

Great idea, now look at the 100's of opening posts and 1000's of replies trying to figure out why .local addresses don't work with PiHole.

[yubiuser]

Did you look at the actual PR at all? It states clear with the new conf file

We do not include the ".local" rule ourselves, see #4282 (comment)

[HVR88]

Yes. Have you read any of the threads? Have you tried these TLDs in the local DNS records in pihole?

[yubiuser]

.local is forwarded upstreams.

May 16 20:22:40 dnsmasq[283]: forwarded test1.local to 172.19.0.2
May 16 20:22:40 dnsmasq[283]: reply test1.local is NXDOMAIN

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these TLDs in the local DNS records in pihole?

I don't know what local DNS records have to do with this PR about not forwarding certain domains, but they're answered as they should be by Pi-hole itself.

May 16 20:28:22 dnsmasq[264280]: query[A] test2.local from 10.0.1.202
May 16 20:28:22 dnsmasq[264280]: /etc/pihole/custom.list test2.local is 123.123.123.123

May 16 20:30:47 dnsmasq[264396]: query[A] test.test from 10.0.1.202
May 16 20:30:47 dnsmasq[264396]: /etc/pihole/custom.list test.test is 7.7.7.7