nix-deploy/config/hosts/wind/services/wireguard.nix

49 lines
1.7 KiB
Nix

{ pkgs, config, ... }:
{
networking.nat.enable = true;
networking.nat.externalInterface = "ens3";
networking.nat.internalInterfaces = [ "wg0" ];
networking.firewall = {
allowedUDPPorts = [ 51820 ];
};
networking.wireguard.interfaces = {
# "wg0" is the network interface name. You can name the interface arbitrarily.
wg0 = {
# Determines the IP address and subnet of the server's end of the tunnel interface.
ips = [ "10.100.0.1/24" ];
# The port that WireGuard listens to. Must be accessible by the client.
listenPort = 51820;
# This allows the wireguard server to route your traffic to the internet and hence be like a VPN
# For this to work you have to set the dnsserver IP of your router (or dnsserver of choice) in your clients
postSetup = ''
${pkgs.iptables}/bin/iptables -t nat -A POSTROUTING -s 10.100.0.0/24 -o ens3 -j MASQUERADE
'';
# This undoes the above command
postShutdown = ''
${pkgs.iptables}/bin/iptables -t nat -D POSTROUTING -s 10.100.0.0/24 -o ens3 -j MASQUERADE
'';
# Path to the private key file.
#
# Note: The private key can also be included inline via the privateKey option,
# but this makes the private key world-readable; thus, using privateKeyFile is
# recommended.
privateKeyFile = builtins.toString config.secrets.files.wg_key.file;
peers = [
# List of allowed peers.
{ # Feel free to give a meaning full name
# Public key of the peer (not a file path).
publicKey = "5u3lMMKcFWohjs0jomG/86MffY8l4E6jbqjJzdyy6ik=";
# List of IPs assigned to this peer within the tunnel subnet. Used to configure routing.
allowedIPs = [ "10.100.0.2/32" ];
}
];
};
};
}