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|
{ config, pkgs, ... }: {
boot = {
initrd.kernelModules = [ "zfs" ];
kernel.sysctl = {
"net.ipv4.ip_forward" = 1;
"net.ipv4.conf.all.proxy_arp" = 1;
};
kernelPackages = pkgs.linuxPackages_6_10;
loader = {
efi = {
canTouchEfiVariables = true;
efiSysMountPoint = "/efiboot/efi1";
};
systemd-boot = {
enable = true;
extraInstallCommands = ''
${pkgs.rsync}/bin/rsync -av --delete /efiboot/efi1/ /efiboot/efi2
'';
};
timeout = 3;
};
supportedFilesystems = [ "zfs" ];
};
environment.etc."nftables-vpn.conf".text = ''
# VPN firewall
flush ruleset
table inet filter {
chain input {
type filter hook input priority filter; policy drop;
# established/related connections
ct state established,related accept
# invalid connections
ct state invalid drop
# loopback interface
iif lo accept
# ICMP (routers may also want: mld-listener-query, nd-router-solicit)
#ip6 nexthdr icmpv6 icmpv6 type { destination-unreachable, echo-reply, echo-request, nd-neighbor-advert, nd-neighbor-solicit, nd-router-advert, packet-too-big, parameter-problem, time-exceeded } accept
ip protocol icmp icmp type { destination-unreachable, echo-reply, echo-request, parameter-problem, router-advertisement, source-quench, time-exceeded } accept
# services
iif veth.vpn tcp dport 8080 accept # qBittorrent
iif veth.vpn tcp dport 9696 accept # Prowlarr
iifname wg1 tcp dport { 49152-65535 } accept # Transmission
}
chain output {
type filter hook output priority filter; policy drop;
# explicitly allow my DNS traffic without VPN
skuid nipsy ip daddr 192.168.1.1 tcp dport domain accept
skuid nipsy ip daddr 192.168.1.1 udp dport domain accept
# explicitly allow my traffic without VPN
oifname veth.vpn skuid nipsy tcp sport 8080 accept # qBittorrent
oifname veth.vpn skuid nipsy tcp sport 9696 accept # Prowlarr
oifname veth.vpn skuid nipsy ip daddr 192.168.1.2 tcp dport { 7878, 8686, 8787, 8989 } accept # Prowlarr to { Radarr, Lidarr, Readarr, Sonarr }
# allow any traffic out through VPN
oifname wg1 accept
# drop everything else
counter drop
}
chain forward {
type filter hook forward priority filter; policy drop;
}
}
'';
environment.systemPackages = with pkgs; [
signal-desktop
wpa_supplicant
];
imports = [
./hardware-configuration.nix
./services.nix
../common/core
../common/optional/db.nix
../common/optional/dev.nix
../common/optional/ebooks.nix
../common/optional/games.nix
../common/optional/google-authenticator.nix
../common/optional/misc.nix
../common/optional/multimedia.nix
../common/optional/pipewire.nix
../common/optional/sdr.nix
../common/optional/services/chrony.nix
../common/optional/services/openssh.nix
../common/optional/services/xorg.nix
../common/optional/sound.nix
../common/optional/zfs.nix
../common/users/nipsy
../common/users/root
];
networking = {
defaultGateway = {
address = "192.168.1.1";
interface = "wlp5s0";
};
domain = "bitgnome.net";
hostId = "2ae4c89f";
hostName = "arrakis";
interfaces = {
wlp5s0 = {
ipv4.addresses = [
{ address = "192.168.1.2"; prefixLength = 24; }
];
};
};
nameservers = [ "192.168.1.1" ];
nftables.enable = true;
useDHCP = false;
wg-quick.interfaces = {
wg0 = {
address = [
"10.4.20.1/24"
];
listenPort = 51820;
peers = [
{ # black-sheep
allowedIPs = [ "10.4.20.2/32" ];
presharedKeyFile = "${config.sops.secrets."wireguard/black-sheep_psk".path}";
publicKey = "wQsGWsfXI2+GmKHdCH2V2xIeTyV2YlH/IFp6gerxcW8=";
}
{ # lilnasx
allowedIPs = [ "10.4.20.3/32" ];
presharedKeyFile = "${config.sops.secrets."wireguard/lilnasx_psk".path}";
publicKey = "87cANtuPf28vGrB0uL69/tXgsD/30FUYt/XevQjpz3o=";
}
{ # ramped
allowedIPs = [ "10.4.20.4/32" ];
presharedKeyFile = "${config.sops.secrets."wireguard/ramped_psk".path}";
publicKey = "TvE3f0QKJXUn8pxmKMaztFvRIdi9z9dxNDN2KNdtRXQ=";
}
{ # homer
allowedIPs = [ "10.4.20.5/32" ];
presharedKeyFile = "${config.sops.secrets."wireguard/homer_psk".path}";
publicKey = "FBc2ZnypwHgjLQcZrwzPR35gax8JsXLa1ZcZy6iAc3Q=";
}
{ # treebeard
allowedIPs = [ "10.4.20.6/32" ];
presharedKeyFile = "${config.sops.secrets."wireguard/treebeard_psk".path}";
publicKey = "aYh7q1QNmz6TLYx5OsZcyHQe45Dv0SyIOCtRp1NHDU8=";
}
{ # lolli
allowedIPs = [ "10.4.20.7/32" ];
presharedKeyFile = "${config.sops.secrets."wireguard/lolli_psk".path}";
publicKey = "npt86Lt/f/9J3qS6u6C0X1MFHIONaA5PKE6lzwwUxTc=";
}
{ # timetrad
allowedIPs = [ "10.4.20.8/32" ];
presharedKeyFile = "${config.sops.secrets."wireguard/timetrad_psk".path}";
publicKey = "/lWCEMGRIr3Gl/3GQYuweAKylhH5H2KqamiXeocYFVM=";
}
{ # ginaz
allowedIPs = [ "10.4.20.254/32" ];
presharedKeyFile = "${config.sops.secrets."wireguard/ginaz_psk".path}";
publicKey = "GuE9PVeS0IDTcaBxOSJmKlvEx2xflxwVGOU+uM0HhBk=";
}
];
privateKeyFile = "${config.sops.secrets."wireguard/arrakis_key".path}";
};
};
wireless = {
enable = true;
networks = {
"Crystal Palace" = {
pskRaw = "ext:psk_crystal_palace";
};
};
secretsFile = "${config.sops.secrets."wpa_supplicant".path}";
};
};
services.openssh.settings.X11Forwarding = true;
services.xserver.videoDrivers = [ "nvidia" ];
sops = {
age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
defaultSopsFile = ../secrets/arrakis.yaml;
secrets = {
"nftables/ssh" = {};
"wireguard/arrakis_key" = {};
"wireguard/black-sheep_psk" = {};
"wireguard/ginaz_psk" = {};
"wireguard/homer_psk" = {};
"wireguard/lilnasx_psk" = {};
"wireguard/lolli_psk" = {};
"wireguard/ramped_psk" = {};
"wireguard/timetrad_psk" = {};
"wireguard/treebeard_psk" = {};
"wireguard/wg1_conf" = {};
"wpa_supplicant" = {};
};
};
system.stateVersion = "23.11";
systemd.services."nftables-extra" = {
description = "nftables extra firewall rules";
script = ''
${pkgs.nftables}/bin/nft insert rule inet nixos-fw input 'iifname "wlp5s0" tcp dport { http, https } counter accept # 80, 443'
${pkgs.nftables}/bin/nft insert rule inet nixos-fw input 'iifname "wlp5s0" udp dport { netbios-ns, netbios-dgm } counter accept # 137, 138'
${pkgs.nftables}/bin/nft insert rule inet nixos-fw input 'iifname "wlp5s0" tcp dport { netbios-ssn, microsoft-ds } counter accept # 139, 445'
${pkgs.nftables}/bin/nft insert rule inet nixos-fw input 'iifname "wlp5s0" tcp dport 2049 counter accept'
${pkgs.nftables}/bin/nft insert rule inet nixos-fw input 'iifname "wlp5s0" udp dport { 2456, 2457 } counter accept # Valheim dedicated server'
${pkgs.nftables}/bin/nft insert rule inet nixos-fw input 'iifname "wlp5s0" udp dport 5121 counter accept # Neverwinter Nights Server'
${pkgs.nftables}/bin/nft insert rule inet nixos-fw input 'iifname "wlp5s0" tcp dport { 7878, 8080, 8686, 8787, 8989 } counter accept # Radarr, Sabnzb, Lidarr, Sonarr, Readarr'
${pkgs.nftables}/bin/nft insert rule inet nixos-fw input 'iifname "wlp5s0" udp dport 15637 counter accept # Enshrouded'
${pkgs.nftables}/bin/nft insert rule inet nixos-fw input 'iifname "wlp5s0" ip saddr 192.168.1.0/24 udp dport { 27031, 27036 } counter accept # Steam Remote Play'
${pkgs.nftables}/bin/nft insert rule inet nixos-fw input 'iifname "wlp5s0" ip saddr 192.168.1.0/24 tcp dport { 27036, 27037 } counter accept # Steam Remote Play'
${pkgs.nftables}/bin/nft insert rule inet nixos-fw input 'iifname "wlp5s0" udp dport 51820 counter accept # WireGuard'
${pkgs.nftables}/bin/nft -f ${config.sops.secrets."nftables/ssh".path}
'';
serviceConfig = {
RemainAfterExit = true;
Type = "oneshot";
};
unitConfig = {
ConditionPathExists = [
config.sops.secrets."nftables/ssh".path
];
};
wantedBy = [ "multi-user.target" ];
after = [ "nftables.service" ];
partOf = [ "nftables.service" ];
};
systemd.paths."nftables-extra" = {
pathConfig = {
PathExists = [
config.sops.secrets."nftables/ssh".path
];
};
wantedBy = [ "multi-user.target" ];
};
}
|
