this post was submitted on 12 Mar 2025
44 points (97.8% liked)

Selfhosted

61103 readers
341 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:

Detailed Rules Post

  1. Be civil.

  2. No spam.

  3. Posts are to be related to self-hosting.

  4. Don't duplicate the full text of your blog or readme if you're providing a link.

  5. Submission headline should match the article title.

  6. No trolling.

  7. Promotion posts require active participation, with an account that is at least 30 days old. F/LOSS without a paywall has exceptions, with requirements. See the rules link for details. Tags [CBH] or [AIP] are required, see the links in Rule 8 for details.

  8. AI-related discussions and AI-involved promotional posts have additional requirements for tagging, as noted in Rule 7 and the AI & Promotional Post Expanded Rules post, and find example disclosures here.

Resources:

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

Questions? DM the mods!

founded 3 years ago
MODERATORS
ruud@lemmy.world
Loki@lemmy.world
CannaVet@lemmy.world
devve@lemmy.world
ayyy@sh.itjust.works
curbstickle@anarchist.nexus
curbstickle_lw@lemmy.world
44
How do you host your DNS sinkhole/resolver? (sh.itjust.works)
submitted 1 year ago* (last edited 1 year ago) by ohshit604@sh.itjust.works to c/selfhosted@lemmy.world
47 comments fedilink hide all child comments
 

Currently have nice long docker compose file that hosts my PiHole V6 container (along with a bunch of other containers) however, reason i ask this question is because whenever I go to pull an updated image and recreate the container I experience about 20 minutes of no DNS resolution which to my knowledge is due to the NTP clock being out of sync.

What’s the best way to host a DNS sinkhole/resolver that can mitigate this issue?

Was thinking of utilizing Proxmox & LXC but I suspect I’ll get the same experience.

~~Update: Turns out PiHole doesn’t support two instances, I got both of them on separate devices also set the 2nd DNS server in my routers WAN & LAN DNS settings which did in fact split DNS between both instances however, I lost access to my routers web-ui, my Traefik instance & reverse proxies died and I lost all internet access.~~

~~So, don’t do what I did.~~

Update 2: So everything I said in my first update let’s disregard that, turns out I had my router forcing all DNS to PiHole server 1 which caused my issues mentioned above.

Two servers appears to work!

you are viewing a single comment's thread
view the rest of the comments
[–] ohshit604@sh.itjust.works 2 points 1 year ago* (last edited 1 year ago)

I think something else may be wrong if it breaks for 20 minutes.

When I originally setup my PiHole many, many, many months ago when I was still learning the Docker engine I had little to no issue.

I don’t know what caused it either being a power-outage or network loss but ever since I’ve been experiencing DNS related issues (I suspect it’s NTP not syncing), some days I’ll wake up before work realizing “oh shit I have no internet access” frantically trying to fix the issue.

I think i might take the advice of other commenters here and host two PiHole servers on separate devices/stacks, just got to hope my router supports it.