nixos-config/machines/shinobu/services/router/dnsmasq.nix

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2023-09-24 14:41:22 +02:00
{ config, ... }:
let
cfg = import ./common.nix;
in
{
services.dnsmasq = {
enable = true;
settings = {
bogus-priv = true; # do not forward revese lookups of internal addresses
domain-needed = true; # do not forward names without domain
interface = "br-lan"; # only respond to queries from lan
no-hosts = true; # do not resolve hosts from /etc/hosts
no-resolv = true; # only use explicitly configured resolvers
cache-size = 10000;
inherit (cfg) domain;
# Allow resolving the router
interface-name = [
"${config.networking.hostName}.${cfg.domain},br-lan"
"${config.networking.hostName},br-lan"
];
# DHCPv4
dhcp-range = [
"10.80.1.20,10.80.1.150,12h" # DHCPv4
"fd00:80:1::,ra-stateless,ra-names" # SLAAC (for addresses) / DHCPv6 (for DNS)
];
dhcp-option = [
"option:router,10.80.1.1"
"option6:dns-server,fd00:80:1::1"
];
# Despite its name, the switch does not have a “smart” configuration,
# that would allow me to tell it not to get DHCP from wan,
# but from lan instead.
# So it has to use static configuration.
host-record = "switchviech,switchviech.${cfg.domain},10.80.1.19";
server = [
"127.0.0.1#5053"
];
};
};
systemd.services.dnsmasq.after = [ "systemd-networkd.service" ];
networking.firewall.allowedUDPPorts = [ 53 67 ];
networking.firewall.allowedTCPPorts = [ 53 ];
services.prometheus.exporters.dnsmasq = {
enable = true;
listenAddress = config.sbruder.wireguard.home.address;
leasesPath = "/var/lib/dnsmasq/dnsmasq.leases";
};
services.https-dns-proxy = {
enable = true;
provider = {
kind = "custom";
ips = [ "9.9.9.9" "149.112.112.112" ];
url = "https://dns.quad9.net/dns-query";
};
};
}