73 lines
2.2 KiB
Nix
73 lines
2.2 KiB
Nix
{
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inputs = {
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};
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outputs =
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{
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...
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}:
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{
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nixosModules = {
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default =
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{
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config,
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pkgs,
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lib,
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...
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}:
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with lib;
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{
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config = {
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environment.systemPackages = with pkgs; [
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nebula
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traceroute # for debugging
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];
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networking.firewall.allowedUDPPorts = [ 4242 ];
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systemd.services."nebula" = {
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description = "Nebula VPN service";
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wants = [ "basic.target" ];
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after = [
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"basic.target"
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"network.target"
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];
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before = [ "sshd.service" ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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Type = "notify";
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Restart = "always";
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RestartSec = 1;
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ExecStart = "${pkgs.nebula}/bin/nebula -config /etc/nebula/config.yml";
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UMask = "0027";
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CapabilityBoundingSet = "CAP_NET_ADMIN";
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AmbientCapabilities = "CAP_NET_ADMIN";
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LockPersonality = true;
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NoNewPrivileges = true;
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PrivateDevices = false; # needs access to /dev/net/tun (below)
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DeviceAllow = "/dev/net/tun rw";
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DevicePolicy = "closed";
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PrivateTmp = true;
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PrivateUsers = false; # CapabilityBoundingSet needs to apply to the host namespace
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ProtectClock = true;
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ProtectControlGroups = true;
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ProtectHome = true;
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ProtectHostname = true;
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ProtectKernelLogs = true;
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ProtectKernelModules = true;
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ProtectKernelTunables = true;
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ProtectProc = "invisible";
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ProtectSystem = "strict";
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RestrictNamespaces = true;
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RestrictSUIDSGID = true;
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};
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unitConfig = {
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StartLimitIntervalSec = 5;
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StartLimitBurst = 3;
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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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}
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