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A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

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Noob question about PiHole (feddit.it)

submitted 9 months ago by [email protected] to c/[email protected]

44 comments fedilink hide all child comments

Hy everyone, I have a PiHole instance running on my home server, and I changed my router (Fritz box) DNS in order to use my PiHole. Everything runs great.

I was wondering if I can put another DNS provider on my "alternative DNS server" in my router, in order to have a fallback alternative in case my server is down, or if I should avoid it.

I'm asking this because I don't know if the request will be handled in parallel between the two DNS provider (that would make my PiHole useless) or not. Thank you.

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[–] [email protected] 2 points 9 months ago (1 children)

uh! this is interesting! I'm gonna look into this. Thanks!

[–] [email protected] 2 points 9 months ago (1 children)

When it comes to a “secondary”DNS... there is nothing like a primary and secondary DNS server. These indications are quite misleading but many systems adopted it this way. Pihole only list the DNS servers as primary and secondary, because this is what the providers write on their pages. The bad phrasing is supported especially by how Windows handles it.

Most operating systems implement DNS servers as alternatives, not as fallbacks, i.e. they will query any of both servers from time to time, so it is quite likely that you will loose your Pi-hole filtering capabilities (at least partially) [if you specify a secondary DNS server on your network].

The ONLY DNS server you should have set on your network is a/the PiHole(s).

[–] [email protected] 1 points 9 months ago (1 children)

I'm not sure if this is a response to my comment but the article I linked isn't about setting a secondary dns, the fritz!box has a function that allows it to temporarily change the dns (usually to 8.8.8.8) if the specified dns isn't working. It is separate from the "normal" dns settings.

[–] [email protected] 1 points 9 months ago* (last edited 9 months ago)

Not sure about that as I never used/seen a Fritzbox, but I stand by “ The ONLY DNS server you should have set on your network is a/the PiHole(s).”