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# Edit this configuration file to define what should be installed on
# your system. Help is available in the configuration.nix(5) man page, on
# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
{ pkgs, ... }:
let
emile_keys = [
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPZi43zHEsoWaQomLGaftPE5k0RqVrZyiTtGqZlpWsew emile@caladan"
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEzLZ56SEgwZZ0OusTdSDDhpMlxSg1zPNdRLuxKOfrR5 emile@chusuk"
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMoHWyC9r0LVk6UlkhBWAJph0F6KHYHh83EI5U9wtfq2 shortcuts@ginaz"
];
in {
imports =
[ # Include the results of the hardware scan.
./hardware-configuration.nix
];
boot = {
loader = {
systemd-boot.enable = true;
efi.canTouchEfiVariables = true;
};
kernelParams = [ "ip=dhcp" ];
initrd = {
availableKernelModules = [ "r8169" ];
systemd.users.root.shell = "/bin/cryptsetup-askpass";
network = {
enable = true;
ssh = {
enable = true;
port = 22;
hostKeys = ["/initrd_ssh_host_key_ed25519"];
authorizedKeys = emile_keys;
};
postCommands = ''
echo 'cryptsetup-askpass' > /root/.profile
'';
};
luks.devices = {
# unsure why luksdata1 is recognized and added to the
# hardware-configuration.nix automatically, but luksdata2 isn't
"luksdata2".device = "/dev/disk/by-uuid/e94d7f32-26ef-41e1-b3f3-9e63e4858001";
};
};
};
fileSystems = {
"/".options = ["compress=zstd"];
"/home".options = ["compress=zstd"];
"/nix".options = ["compress=zstd" "noatime"];
};
networking = {
hostName = "lampadas";
firewall.enable = true;
};
time.timeZone = "Europe/Berlin";
powerManagement = {
powertop.enable = true;
scsiLinkPolicy = "med_power_with_dipm";
};
users = {
mutableUsers = false;
users = {
root = {
hashedPassword = "";
openssh.authorizedKeys.keys = emile_keys;
};
emile = {
isNormalUser = true;
extraGroups = [ "wheel" "samba-guest" ];
openssh.authorizedKeys.keys = emile_keys;
};
samba-guest = {
isSystemUser = true;
description = "Samba guest user";
group = "samba-guest";
home = "/var/empty";
createHome = false;
shell = pkgs.shadow;
};
};
};
users.groups.samba-guest = {};
systemd.tmpfiles.rules = [
"d /data 0755 root root"
"d /data/private 0755 emile users"
"d /data/public 0755 samba-guest samba-guest"
"d /data/time_machine 0755 emile users"
];
environment.systemPackages = with pkgs; [ vim tailscale ];
programs.mosh.enable = true;
services = {
# traffic metrics
vnstat.enable = true;
# ssh access
openssh = {
enable = true;
settings = {
PasswordAuthentication = false;
KbdInteractiveAuthentication = false;
};
};
# VPN
tailscale.enable = true;
# filesystem stuff
btrfs = {
autoScrub.enable = true;
autoScrub.interval = "weekly";
};
# metric exporters
prometheus.exporters = {
node.enable = true;
systemd.enable = true;
smartctl.enable = true;
};
# shares
samba = {
enable = true;
openFirewall = true;
securityType = "user";
extraConfig = ''
workgroup = WORKGROUP
server string = lampadas
netbios name = lampadas
security = user
hosts allow = 100.64.0.0/255.192.0.0, 127.0.0.1/255.0.0.0, ::1, 192.168.0., 192.168.1.
hosts deny = 0.0.0.0/0
guest account = samba-guest
map to guest = bad user
load printers = no
server min protocol = SMB3
server smb encrypt = required
read raw = Yes
write raw = Yes
socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=131072 SO_SNDBUF=131072
min receivefile size = 16384
use sendfile = true
aio read size = 16384
aio write size = 16384
server multi channel support = yes
'';
shares = {
public = {
path = "/data/public";
"browseable" = "yes";
"read only" = "no";
"guest ok" = "yes";
"guest only" = "yes";
"available" = "yes";
"create mask" = "2775";
"directory mask" = "2775";
"force create mask" = "2775";
"force directory mask" = "2775";
"force user" = "samba-guest";
"comment" = "public data";
"writable" = "yes";
};
private = {
path = "/data/private";
"browseable" = "yes";
"read only" = "no";
"guest ok" = "no";
"create mask" = "0644";
"directory mask" = "0755";
"force user" = "emile";
"comment" = "private data (no flags though)";
};
time_machine = {
path = "/data/time_machine";
"public" = "no";
"writeable" = "yes";
"valid users" = "emile";
"force user" = "emile";
"fruit:aapl" = "yes";
"fruit:time machine" = "yes";
"fruit:delete_empty_adfiles" = "yes";
"fruit:veto_appledouble" = "no";
"fruit:wipe_intentionally_left_blank_rfork" = "yes";
"fruit:posix_rename" = "yes";
"fruit:metadata" = "stream";
# otherwise, copying on the server happens Server -> Client ->
# Server (but only on macos)
"fruit:copyfile" = "yes";
"vfs objects" = "catia fruit streams_xattr";
"comment" = "time machine backups";
};
};
};
};
system = {
stateVersion = "23.11";
autoUpgrade.enable = true;
};
nix = {
gc = {
automatic = true;
dates = "weekly";
options = "--delete-older-than 14d";
};
settings = {
auto-optimise-store = true;
};
};
}
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