{ flake, pkgs, lib, ... }: { imports = with flake.nixosModules.systemProfiles; [ qemu-guest openssh rebuild-machines ./zfs.nix ./dns ]; config = { nixpkgs = { system = "x86_64-linux"; }; networking.hostId = "a64cf4d7"; environment.etc."machine-id".text = "a64cf4d793ab0a0ed3892ead609fc0bc"; boot = { loader.grub = { enable = true; version = 2; device = "/dev/vda"; }; kernelPackages = pkgs.linuxPackages_latest; tmpOnTmpfs = true; supportedFilesystems = [ "zfs" ]; zfs = { enableUnstable = true; devNodes = "/dev"; # /dev/vda2 does not show up in /dev/disk/by-id }; kernelModules = ["ptp_kvm"]; }; fileSystems = { "/" = { fsType = "tmpfs"; options = [ "mode=0755" ]; }; "/boot" = { device = "/dev/disk/by-label/boot"; fsType = "vfat"; }; }; networking = { hostName = "surtr"; domain = "muspelheim.yggdrasil"; search = [ "muspelheim.yggdrasil" "yggdrasil" ]; enableIPv6 = true; dhcpcd.enable = false; useDHCP = false; useNetworkd = true; defaultGateway = { address = "202.61.240.1"; }; defaultGateway6 = { address = "fe80::1"; }; interfaces."ens3" = { ipv4.addresses = [ { address = "202.61.241.61"; prefixLength = 22; } ]; ipv6.addresses = [ { address = "2a03:4000:52:ada::"; prefixLength = 64; } ]; }; firewall = { enable = true; allowPing = true; allowedTCPPorts = [ 22 # ssh ]; allowedUDPPortRanges = [ { from = 60000; to = 61000; } # mosh ]; }; }; systemd.network.networks."40-ens3".networkConfig = { Domains = lib.mkForce "~."; DNS = [ "46.38.225.230" "46.38.252.230" "2a03:4000:0:1::e1e6" "2a03:4000:8000::fce6" ]; }; services.timesyncd.enable = false; services.chrony = { enable = true; extraConfig = '' refclock PHC /dev/ptp_kvm poll 2 dpoll -2 offset 0 stratum 3 ''; }; services.openssh = { enable = true; passwordAuthentication = false; challengeResponseAuthentication = false; extraConfig = '' AllowGroups ssh ''; }; users.groups."ssh" = { members = ["root"]; }; security.sudo.extraConfig = '' Defaults lecture = never ''; nix.gc = { automatic = true; options = "--delete-older-than 30d"; }; }; }