nixos-servers/nixos/modules/dns/default.nix

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2024-01-07 19:24:12 +00:00
{ pkgs, lib, config, dns, ... }:
let
cfg = config.lab.dns;
publicIpv4 = "192.145.57.90";
kunisZoneFile = pkgs.writeTextFile {
name = "kunis-zone-file";
text = (dns.lib.toString "kun.is" (import ./zones/kun.is.nix { inherit dns publicIpv4; }));
};
geokunis2nlZoneFile = pkgs.writeTextFile {
name = "geokunis2nl-zone-file";
text = (dns.lib.toString "geokunis2.nl" (import ./zones/geokunis2.nl.nix { inherit dns publicIpv4; }));
};
in
{
options.lab.dns.enable = lib.mkOption {
default = false;
type = lib.types.bool;
description = ''
Whether to enable an authoritative DNS server and DNSmasq for DMZ network.
'';
};
config = lib.mkIf cfg.enable {
networking.firewall = {
allowedTCPPorts = [ 53 ];
allowedUDPPorts = [ 53 ];
};
services.bind = {
enable = true;
forwarders = [ ];
# TODO: disable ipv6 for now, as the hosts themselves lack routes it seems.
ipv4Only = true;
extraOptions = ''
allow-transfer { none; };
allow-recursion { none; };
version "No dice.";
'';
zones = {
"kun.is" = {
master = true;
file = kunisZoneFile;
allowQuery = [ "any" ];
extraConfig = ''
notify yes;
allow-update { none; };
'';
};
"geokunis2.nl" = {
master = true;
file = geokunis2nlZoneFile;
allowQuery = [ "any" ];
extraConfig = ''
notify yes;
allow-update { none; };
'';
};
};
};
};
}