{ flake, pkgs, ... }: { imports = with flake.nixosModules.systemProfiles; [ qemu-guest openssh ]; config = { nixpkgs = { system = "x86_64-linux"; }; networking.hostId = "a64cf4d7"; environment.etc."machine-id".text = "a64cf4d793ab0a0ed3892ead609fc0bc"; boot = { loader = { systemd-boot.enable = true; efi.canTouchEfiVariables = true; timeout = null; }; kernelPackages = pkgs.linuxPackages_latest; tmpOnTmpfs = true; supportedFilesystems = [ "zfs" ]; }; fileSystems = { "/" = { fsType = "tmpfs"; options = [ "mode=0755" ]; }; "/boot" = { device = "/dev/disk/by-label/boot"; fsType = "vfat"; }; "/nix" = { device = "surtr/local/nix"; fsType = "zfs"; }; "/root" = { device = "surtr/safe/home-root"; fsType = "zfs"; neededForBoot = true; }; "/var/log" = { device = "surtr/local/var-log"; fsType = "zfs"; }; "/home" = { device = "surtr/safe/home"; fsType = "zfs"; }; }; 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 ]; }; }; services.openssh = { passwordAuthentication = false; challengeResponseAuthentication = false; extraConfig = '' AllowGroups ssh ''; }; users.groups."ssh" = { members = ["root"]; }; }; }