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!

  • 大きいBOY@lemmy.blahaj.zone
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    6 hours ago

    How do you host your DNS sinkhole/resolver?

    Like this, baby:

    services.adguardhome = {
          enable = true;
          mutableSettings = false;
          openFirewall = true;
          settings = {
            dns = {
              # Web Interface
              bootstrap_dns = ["9.9.9.9" "149.112.112.112"];
              upstream_dns = ["https://dns.quad9.net/dns-query"];
              fallback_dns = ["tls://dns.quad9.net"];
            };
            filters = [
              {
                name = "AdGuard DNS filter";
                url = "https://adguardteam.github.io/HostlistsRegistry/assets/filter_1.txt";
                enabled = true;
              }
            ];
            filtering = {
              blocked_services = {
                ids = [
                ];
              };
              protection_enabled = true;
              filtering_enabled = true;
              rewrites = [
              ];
            };
    

    Deploy to the main home server, and the backup instance. NixOS is fucking awesome. No sync tool needed.

    • Lem453@lemmy.ca
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      2 hours ago

      How do I use nixos for docker? I’ve tried before but what I want is to be able to pull docker compose from a git and deploy it. I haven’t been able to find an easy way to do that on docker