60 lines
1.6 KiB
Nix
60 lines
1.6 KiB
Nix
{ lib, pkgs, config, ... }:
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let wg_port = 51820;
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in {
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boot.kernel.sysctl = {
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"net.ipv4.ip_forward" = lib.mkDefault true;
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"net.ipv6.conf.all.forwarding" = lib.mkDefault true;
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};
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# set up secret key
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sops = {
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age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
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secrets.wg_private_key = {
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sopsFile = ../../secrets/wireguard/secrets.yaml;
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};
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};
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networking = {
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firewall.allowedUDPPorts = [ wg_port ];
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firewall.rejectPackets = true;
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firewall.trustedInterfaces = [ "wgbr" "wg0" ];
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interfaces.wgbr.ipv4 = {
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routes = [ ];
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addresses = [
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{
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address = "10.8.1.1";
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prefixLength = 24;
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}
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];
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};
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wg-quick.interfaces = {
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wg0 = {
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# Determines the IP address and subnet of the client's end of the tunnel interface.
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address = [ "10.8.1.1/16" ];
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listenPort = wg_port; # to match firewall allowedUDPPorts (without this wg uses random port numbers)
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# Path to the private key file (see sops).
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privateKeyFile = "/run/secrets/wg_private_key";
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peers = [
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# For a client configuration, one peer entry for the server will suffice.
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{
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# Public key of the server (not a file path).
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publicKey = "AJ1nr0/w8OvsNq5Ju//m4856u7yY0hlPGMEGeZtlhlY=";
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# Forward all the traffic via VPN.
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allowedIPs = [ "10.8.0.0/16" ];
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# Set this to the server IP and port.
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endpoint = "202.61.230.52:51820";
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# Send keepalives every 25 seconds. Important to keep NAT tables alive.
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persistentKeepalive = 25;
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}
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];
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};
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};
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};
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}
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