Selfhosted

40394 readers

397 users here now

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.

Rules:

Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.
No spam posting.
Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.
Don't duplicate the full text of your blog or github here. Just post the link for folks to click.
Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).
No trolling.

Resources:

selfh.st Newsletter and index of selfhosted software and apps
awesome-selfhosted software
awesome-sysadmin resources
Self-Hosted Podcast from Jupiter Broadcasting

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 2 years ago

MODERATORS

HybridSarcasm@lemmy.world

HybridSarcasm@lemmy.hybridsarcasm.xyz

Noob question about PiHole (feddit.it)

submitted 10 months ago by Kir@feddit.it to c/selfhosted@lemmy.world

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.

you are viewing a single comment's thread
view the rest of the comments

[–] TCB13@lemmy.world 3 points 10 months ago* (last edited 10 months ago) (1 children)

mary DNS Server: Clients will first attempt to use the primary DNS server specified in their network settings. This ser

What's the point tho? If your PiHole fails you need to know otherwise you could be risking days / months of web surfing in the fallback DNS server without even noticing it.

As for a reply, there’s no RFC that specifies that a specific order is applied to DNS servers. So in short, you can't have a fallback that is reliable and most operating systems will just load balance or opportunistically pick between the two.

[–] Kir@feddit.it 2 points 10 months ago (2 children)

Thank you, this is what I was worrying about. As for the "why", even if my server is quite stable, a shutdown may be necessary and sometimes slowdowns with pi-hole happened. Some redundancy would have been better.

[–] TCB13@lemmy.world 1 points 10 months ago

Well, I'm not sure you read the other comments but there is confirmation that for clients there isn't an order for DNS servers from RFC2182:

The distinction between primary and secondary servers is relevant only to the servers for the zone concerned, to the rest of the DNS there are simply multiple servers.

All are treated equally at first instance, even by the parent server that delegates the zone. Resolvers often measure the performance of the various servers, choose the “best”, for some definition of best, and prefer that one for most queries.

[–] AtariDump@lemmy.world 1 points 10 months ago

Setup two PiHoles