52 lines
2.0 KiB
Nix
52 lines
2.0 KiB
Nix
{ config, pkgs, lib, ... }:
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# mercury — Raspberry Pi 3B+ (aarch64). Network DNS + DHCP (+ adblock).
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# Boots from an SD image (see flake: nixosConfigurations.mercury), so there is
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# no disko / hardware-configuration here — the sd-image module provides them.
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{
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imports = [
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../../common.nix # shared base: user / ssh / nix / firewall
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../../services/unbound.nix # local recursive resolver (127.0.0.1:5335)
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# ../../services/<dns>.nix # add once the adblock DNS engine is chosen (below)
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];
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networking.hostName = "mercury";
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# ---- Static networking ----
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# A DNS/DHCP server must have a fixed address. Fill in the Pi's real values
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# (from `ip -brief a` / `ip route` on the running Pi). eth0 = the Pi's NIC.
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networking.useDHCP = false;
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networking.usePredictableInterfaceNames = false; # keep it named eth0
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networking.interfaces.eth0.ipv4.addresses = [
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{ address = "10.0.0.10"; prefixLength = 24; } # the Pi's current IP
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];
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# VERIFY with `ip route` on the Pi — assuming the router is .1.
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networking.defaultGateway = { address = "10.0.0.1"; interface = "eth0"; };
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# Upstream resolvers for the box itself (the adblock DNS forwards to these).
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networking.nameservers = [ "1.1.1.1" "9.9.9.9" ];
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# ---- DNS + adblock + DHCP — pick ONE, then open its ports below ----
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#
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# Option A: pihole (native module)
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# services.pihole-ftl = {
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# enable = true;
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# # dhcp, lists, upstreams, local records...
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# };
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#
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# Option B: AdGuard Home (native module, fully declarative)
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# services.adguardhome = {
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# enable = true;
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# settings = {
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# dns.upstream_dns = [ "1.1.1.1" "9.9.9.9" ];
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# # filters (adlists), rewrites (local DNS), dhcp static leases...
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# };
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# };
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#
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# Then open the ports this service needs:
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# networking.firewall.allowedTCPPorts = [ 53 80 ]; # DNS + web UI
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# networking.firewall.allowedUDPPorts = [ 53 67 ]; # DNS + DHCP
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# Do not modify after first flash.
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system.stateVersion = "26.05";
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}
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