zion/modules/networking.nix

138 lines
3.1 KiB
Nix

{ config, pkgs, lib, ... }:
let wireguard_port = 1194;
in {
# Enable systemd-networkd
networking = {
hostName = "zion";
hostId = "4e74ea68";
useDHCP = false;
useNetworkd = true;
dhcpcd.enable = false;
};
systemd.network.wait-online.enable = false;
# Assign a static IP
systemd.network.networks."24-home" = {
name = "end0";
matchConfig.Name = "end0";
address = [ "192.168.13.2/24" ];
gateway = [ "192.168.13.1" ];
dns = [ "1.1.1.1" "9.9.9.9" ];
networkConfig.DNSSEC = "no";
};
# Dynamic DNS configuration
services.ddclient = {
enable = true;
quiet = true;
use = "web, web=freedns";
interval = "30min";
protocol = "duckdns";
domains = [ "coolneng.duckdns.org" ];
passwordFile = config.age.secrets.ddclient.path;
extraConfig = "";
};
# Firewall configuration
networking.firewall = {
allowedTCPPorts = [
80 # HTTP
443 # HTTPS
53 # DNS
8448 # Matrix
1883 # MQTT
];
allowedUDPPorts = [
wireguard_port # Wireguard
53 # DNS
];
extraCommands = ''
iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o ${
config.systemd.network.networks."24-home".name
} -j MASQUERADE
'';
};
# Wireguard setup
systemd.network.netdevs."wg0" = {
netdevConfig = {
Kind = "wireguard";
Name = "wg0";
};
wireguardConfig = {
ListenPort = wireguard_port;
PrivateKeyFile = config.age.secrets.wireguard.path;
};
wireguardPeers = [
# panacea
{
wireguardPeerConfig = {
PublicKey = "XMkTztU2Y8hw6Fu/2o4Gszij+EmNacvFMXuZyHS1n38=";
AllowedIPs = [ "10.8.0.2/32" ];
};
}
# caravanserai
{
wireguardPeerConfig = {
PublicKey = "eeKfAgMisM3K4ZOErev05RJ9LS2NLqL4x9jyi4XhM1Q=";
AllowedIPs = [ "10.8.0.3/32" ];
};
}
];
};
systemd.network.networks."wg0" = {
matchConfig.Name = "wg0";
networkConfig = {
Address = "10.8.0.1/24";
IPForward = true;
IPMasquerade = "ipv4";
};
};
# DNS server with ad-block
services.dnsmasq = {
enable = true;
settings = {
domain-needed = true;
bogus-priv = true;
no-resolv = true;
listen-address = [ "127.0.0.1" "192.168.13.2" "10.8.0.1" ];
bind-interfaces = true;
server = [ "127.0.0.1#43" ];
cache-size = 10000;
local-ttl = 300;
conf-file = "${pkgs.dnsmasq}/share/dnsmasq/trust-anchors.conf";
dnssec = false;
address = "/coolneng.duckdns.org/192.168.13.2";
};
};
# Encrypted DNS
services.dnscrypt-proxy2 = {
enable = true;
settings = {
ipv6_servers = false;
require_dnssec = true;
listen_addresses = [ "127.0.0.1:43" ];
sources.public-resolvers = {
urls = [
"https://download.dnscrypt.info/resolvers-list/v3/public-resolvers.md"
];
cache_file = "/var/lib/dnscrypt-proxy2/public-resolvers.md";
minisign_key =
"RWQf6LRCGA9i53mlYecO4IzT51TGPpvWucNSCh1CBM0QTaLn73Y7GFO3";
};
blocked_names.blocked_names_file =
"/var/lib/dnscrypt-proxy/blocklist.txt";
};
};
}