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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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[help] systemd-resolved how to keep DNS server order? (lemmy.dbzer0.com)

submitted 1 month ago* (last edited 1 month ago) by [email protected] to c/[email protected]

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I have a pi hole in my network and I set it as my primary DNS server, and my router (a Mikrotik) as secondary. DHCP sets the DNS servers as pihole, mikrotik in this exact order and I want to keep it that way. I know systemd-resolved uses some algorithm to set the fastest dns as current server, but I don't want/need that. Is there some way to do configure it to just let it be?

I'm running Fedora 40.

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[–] [email protected] 2 points 1 month ago (3 children)

You can't. Well, you shouldn't rely on queries going out in any particular order. All of your DNS servers should behave the same way as clients may fail from the first one to a secondary.

Why do you care which one is being used? What are you trying to do?

[–] [email protected] 1 points 1 month ago (1 children)

I want to have ads blocked with pihole and at the same time to have local DNS served by the router. I know pihole does local DNS, but RouterOS (mikrotik) is much better suited for that.

[–] [email protected] 7 points 1 month ago (1 children)

If you set the Microtik as Pihole's upstream server, you should get both Microtik's local domains and ad blocking.

You may need to disable DNSSEC validation to get it to work if you use a real domain for local records, though.

[–] [email protected] 1 points 1 month ago

Thank you. I'll have it set like this.

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