96 lines
2.7 KiB
Nix
96 lines
2.7 KiB
Nix
{ config, ... }: {
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systemd.network = {
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# Main interface
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networks."10-lan" = {
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name = "enp1s0";
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networkConfig.DHCP = "ipv4";
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address = [
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"2a01:4f8:c2c:71c0::/64"
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];
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routes = [
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{ routeConfig = { Gateway = "fe80::1"; }; }
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];
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};
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# The following routes traffic destined for 49.13.33.75 (floating IP) to
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# sigma through wireguard. This allows the server to have a public address
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# even though it is behind NAT.
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netdevs."50-wg-sigma-public" = {
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netdevConfig = {
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Name = "wg-sigma-public";
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Kind = "wireguard";
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};
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wireguardConfig = {
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ListenPort = 51820;
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PrivateKeyFile = config.age.secrets.wireguard-private-key-file-alpha.path;
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};
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wireguardPeers = [
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{
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wireguardPeerConfig = {
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PublicKey = "sigmaH/DKSU8KWyrPtucYmS2ewUvDvCNLxd/qYEo0n0=";
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PresharedKeyFile = config.age.secrets.wireguard-preshared-key-file.path;
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# Add to the main routing table that traffic for the address should
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# be sent to sigma.
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AllowedIPs = [ "49.13.33.75/32" ];
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RouteTable = "main";
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};
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}
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];
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};
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networks."wg-sigma-public" = {
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name = "wg-sigma-public";
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};
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# The following routes traffic destined for 116.203.6.156 (floating IP) to
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# sigma through wireguard. This allows the server to have a public address
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# and help others sail the high seas even though it is behind NAT.
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netdevs."51-wg-sigma-p2p" = {
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netdevConfig = {
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Name = "wg-sigma-p2p";
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Kind = "wireguard";
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};
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wireguardConfig = {
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ListenPort = 51821;
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PrivateKeyFile = config.age.secrets.wireguard-private-key-file-alpha.path;
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};
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wireguardPeers = [
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{
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wireguardPeerConfig = {
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PublicKey = "sigmaH/DKSU8KWyrPtucYmS2ewUvDvCNLxd/qYEo0n0=";
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PresharedKeyFile = config.age.secrets.wireguard-preshared-key-file.path;
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AllowedIPs = [ "116.203.6.156/32" ];
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RouteTable = "main";
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};
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}
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];
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};
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networks."wg-sigma-p2p" = {
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name = "wg-sigma-p2p";
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};
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};
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# Enable forwarding of packets
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boot.kernel.sysctl = {
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"net.ipv4.ip_forward" = true;
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"net.ipv4.conf.all.forwarding" = true;
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};
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networking = {
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firewall.allowedUDPPorts = [ 51820 51821 ];
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};
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age.secrets.wireguard-preshared-key-file = {
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file = ../../secrets/wireguard-preshared-key-file.age;
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mode = "640";
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owner = "root";
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group = "systemd-network";
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};
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age.secrets.wireguard-private-key-file-alpha = {
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file = ../../secrets/wireguard-private-key-file-alpha.age;
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mode = "640";
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owner = "root";
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group = "systemd-network";
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};
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}
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