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{ lib, config, pkgs, ... }:
{
boot.kernel.sysctl = {
"net.ipv4.conf.all.forwarding" = true;
"net.ipv4.conf.default.forwarding" = true;
"net.core.default_qdisc" = "fq";
"net.ipv4.tcp_congestion_control" = "bbr";
};
services.dnsmasq = {
enable = true;
resolveLocalQueries = true;
extraConfig = ''
log-dhcp
bind-interfaces
server=8.8.8.8
server=4.4.4.4
cache-size=1000
domain-needed
domain=home
local=/home/
no-resolv
dhcp-script=${pkgs.tools.dnsmasq-to-html}/bin/dnsmasq-leases-html
script-on-renewal
dhcp-authoritative
interface=mgmt0
dhcp-range=set:mgmt0,192.168.0.100,192.168.0.199,30m
dhcp-option=tag:mgmt0,option:router,192.168.0.1
interface=iot
dhcp-range=set:iot,192.168.10.100,192.168.10.199,30m
dhcp-option=tag:iot,option:router,192.168.10.1
interface=guest
dhcp-range=set:guest,192.168.20.100,192.168.20.199,30m
dhcp-option=tag:guest,option:router,192.168.20.1
dhcp-option=option:dns-server,192.168.0.1,8.8.8.8
dhcp-host=b4:fb:e4:81:4f:0f,ap-media-room,192.168.0.30,infinite
dhcp-host=74:83:c2:12:67:2d,ap-living-room,192.168.0.31,infinite
dhcp-host=b4:fb:e4:81:52:6c,ap-office,192.168.0.32,infinite
dhcp-host=b4:fb:e4:b2:bd:b8,switch-garage,192.168.0.33,infinite
dhcp-host=fc:ec:da:78:d8:92,switch-media-room,192.168.0.34,infinite
dhcp-host=b4:fb:e4:8f:69:0e,switch-office,192.168.0.35,infinite
dhcp-host=d8:bb:c1:44:1c:d3,tahoe,192.168.0.40,infinite
# hosted names
host-record=loki,loki.${config.homelab.domain},192.168.6.40
'';
};
# dnsmasq needs the interfaces to be online
# https://serverfault.com/a/907603
systemd.services.dnsmasq = {
after = [ "network-online.target" "network.target" ];
wants = [ "network-online.target" ];
};
# DNS / DHCPv4 / DHCPv6
networking.firewall.allowedUDPPorts = [ 53 67 547 ];
services.nginx.virtualHosts."dnsmasq" = {
listen = [
{
addr = "192.168.6.1";
port = 8067;
}
];
locations."/" = {
root = "/var/lib/dnsmasq";
index = "leases.html";
};
};
services.prometheus.exporters.dnsmasq = {
enable = true;
leasesPath = "/var/lib/dnsmasq/dnsmasq.leases";
};
}
|
