zion/modules/networking.nix

123 lines
2.5 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.services."systemd-networkd-wait-online".enable = false;
# Assign a static IP
systemd.network.networks."24-home" = {
name = "eth0";
matchConfig.Name = "eth0";
address = [ "192.168.13.2/24" ];
gateway = [ "192.168.13.1" ];
dns = [ "192.168.13.2" ];
networkConfig.DNSSEC = "no";
};
# Enable zeroconf
services.avahi = {
enable = true;
nssmdns = true;
openFirewall = true;
publish = {
enable = true;
userServices = true;
};
};
# Dynamic DNS configuration
services.ddclient = {
enable = true;
quiet = true;
protocol = "duckdns";
domains = [ "coolneng.duckdns.org" ];
passwordFile = config.age.secrets.ddclient.path;
};
# Firewall configuration
networking.firewall = {
allowedTCPPorts = [
80 # HTTP
443 # HTTPS
53 # DNS
8448 # Matrix
];
allowedUDPPorts = [
wireguard_port # Wireguard
53 # DNS
];
extraCommands = ''
iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o eth0 -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;
servers = [ "51.158.108.203" "137.220.55.93" ];
extraConfig = ''
domain-needed
bogus-priv
no-resolv
listen-address=127.0.0.1,192.168.13.2,10.8.0.1
bind-interfaces
cache-size=10000
local-ttl=300
conf-file=/var/lib/dnsmasq/dnsmasq.blacklist.txt
address=/coolneng.duckdns.org/192.168.13.2
'';
};
}