configure wg
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@ -102,6 +102,59 @@
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# Or disable the firewall altogether.
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# Or disable the firewall altogether.
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networking.firewall.enable = false;
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networking.firewall.enable = false;
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# enable NAT
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networking.nat.enable = true;
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networking.nat.externalInterface = "enp42s0";
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networking.nat.internalInterfaces = [ "wg0" ];
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networking.firewall = {
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allowedUDPPorts = [ 51820 ];
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};
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networking.wireguard.interfaces = {
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# "wg0" is the network interface name. You can name the interface arbitrarily.
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wg0 = {
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# Determines the IP address and subnet of the server's end of the tunnel interface.
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ips = [ "10.100.0.1/24" ];
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# The port that WireGuard listens to. Must be accessible by the client.
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listenPort = 51820;
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# This allows the wireguard server to route your traffic to the internet and hence be like a VPN
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# For this to work you have to set the dnsserver IP of your router (or dnsserver of choice) in your clients
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postSetup = ''
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${pkgs.iptables}/bin/iptables -t nat -A POSTROUTING -s 10.100.0.0/24 -o eth0 -j MASQUERADE
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'';
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# This undoes the above command
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postShutdown = ''
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${pkgs.iptables}/bin/iptables -t nat -D POSTROUTING -s 10.100.0.0/24 -o eth0 -j MASQUERADE
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'';
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# Path to the private key file.
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#
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# Note: The private key can also be included inline via the privateKey option,
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# but this makes the private key world-readable; thus, using privateKeyFile is
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# recommended.
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privateKeyFile = "/home/alex/wireguard-keys/private";
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peers = [
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# List of allowed peers.
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{
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# Feel free to give a meaning full name
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# Public key of the peer (not a file path).
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publicKey = "KVViY+Bgu7PoBeS+rthcyQVQB03IdolxDzc5ZwsdNnM=";
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# List of IPs assigned to this peer within the tunnel subnet. Used to configure routing.
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allowedIPs = [ "10.100.0.2/32" ];
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}
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{
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# John Doe
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publicKey = "{john doe's public key}";
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allowedIPs = [ "10.100.0.3/32" ];
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}
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];
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};
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};
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# Copy the NixOS configuration file and link it from the resulting system
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# Copy the NixOS configuration file and link it from the resulting system
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# (/run/current-system/configuration.nix). This is useful in case you
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# (/run/current-system/configuration.nix). This is useful in case you
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# accidentally delete configuration.nix.
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# accidentally delete configuration.nix.
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@ -26,6 +26,46 @@
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# networking.wireless.enable = true; # Enables wireless support via wpa_supplicant.
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# networking.wireless.enable = true; # Enables wireless support via wpa_supplicant.
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networking.networkmanager.enable = true; # Easiest to use and most distros use this by default.
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networking.networkmanager.enable = true; # Easiest to use and most distros use this by default.
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networking.firewall = {
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allowedUDPPorts = [ 51820 ]; # Clients and peers can use the same port, see listenport
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};
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# Enable WireGuard
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networking.wireguard.interfaces = {
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# "wg0" is the network interface name. You can name the interface arbitrarily.
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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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ips = [ "10.100.0.2/24" ];
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listenPort = 51820; # to match firewall allowedUDPPorts (without this wg uses random port numbers)
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# Path to the private key file.
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#
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# Note: The private key can also be included inline via the privateKey option,
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# but this makes the private key world-readable; thus, using privateKeyFile is
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# recommended.
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privateKeyFile = "/home/alex/wireguard-keys/private";
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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 = "aD40D1jcgLbIZGkA1AoXkwpmP6hSWcttf3ptq4GRjC0=";
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# Forward all the traffic via VPN.
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allowedIPs = [ "0.0.0.0/0" ];
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# Or forward only particular subnets
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#allowedIPs = [ "10.100.0.1" "91.108.12.0/22" ];
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# Set this to the server IP and port.
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endpoint = "192.168.1.226:51820"; # ToDo: route to endpoint not automatically configured https://wiki.archlinux.org/index.php/WireGuard#Loop_routing https://discourse.nixos.org/t/solved-minimal-firewall-setup-for-wireguard-client/7577
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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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# Set your time zone.
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# Set your time zone.
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time.timeZone = "America/New_York";
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time.timeZone = "America/New_York";
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