Samba Troubles: "Unit samba.service not found"

Help
1

I (=Nix newbie) am really struggling to get Samba running on NixOS. I have installed Samba before (@Debian) without any issues, so it’s probably a “Nix logic” error of mine. Any help appreciated!

1) The issue:

When trying to start smb services, I get:

$ testparm
Load smb config files from /etc/samba/smb.conf
Loaded services file OK.
Weak crypto is allowed by GnuTLS (e.g. NTLM as a compatibility fallback)

Server role: ROLE_STANDALONE

Press enter to see a dump of your service definitions

# Global parameters
[global]
        map to guest = Bad User
        netbios name = SMBNIX
        passwd program = /run/wrappers/bin/passwd %u
        security = USER
        server string = smbnix
        idmap config * : backend = tdb
        hosts allow = 192.168.0. 127.0.0.1 localhost
        hosts deny = 0.0.0.0/0
        invalid users = root

[private]
        create mask = 0644
        force group = samba_users
        force user= fulanito, menganito
        path = /xxx/xxx/xxx/
        read only = No


[public]
        create mask = 0644
        force group = samba_users
        force user= fulanito, menganito
        guest ok = Yes
        path= /xxx/xxx/xxx/
        read only = No

$ sudo systemctl restart samba
Failed to restart samba.service: Unit samba.service not found.

2) Installed package:

$ nix-env --query
samba-4.20.4

3) configuration.nix:

The samba-snippets from my config-file:

# Samba
 services.samba = {
  enable = true;
  openFirewall = true;
  settings = {
     global = {
      "workgroup" = "WORKGROUP";
      "server string" = "smbnix";
      "netbios name" = "smbnix";
      "security" = "user";
      #"use sendfile" = "yes";
      #"max protocol" = "smb2";
      # note: localhost is the ipv6 localhost ::1
      "hosts allow" = "1xx.1xx.0. 127.0.0.1 localhostt";
      "hosts deny" = "0.0.0.0/0";
      "guest account" = "nobody";
      "map to guest" = "bad user";
    };
   "public" = {
      path = "/xxx/xxx/xxx/";
      "browseable" = "yes";
      "read only" = "no";
      "guest ok" = "yes";
      "create mask" = "0644";
      "directory mask" = "0755";
      "force user" = "fulanito, menganito";
      "force group" = "samba_users";
    };
   private = {
      path = "/xxx/xxx/xxx";
      browseable = "yes";
      "read only" = "no";
      "guest ok" = "no";
      "create mask" = "0644";
      "directory mask" = "0755";
      "force user" = "fulanito, menganito";
      "force group" = "samba_users";
    };
  };
};

services.samba-wsdd = {
  enable = true;
  openFirewall = true;
};

networking.firewall.enable = true;
networking.firewall.allowPing = true;

4) smb.conf:

[global]
guest account=nobody
hosts allow=1xx.1xx.0. 127.0.0.1 localhost
hosts deny=0.0.0.0/0
invalid users=root
map to guest=bad user
netbios name=smbnix
passwd program=/run/wrappers/bin/passwd %u
security=user
server string=smbnix
workgroup=WORKGROUP
[private]
browseable=yes
create mask=0644
directory mask=0755
force group=samba_users
force user=fulanito, menganito
guest ok=no
path=/xxx/xxx/xxx/
read only=no

[public]
browseable=yes
create mask=0644
directory mask=0755
force group=samba_users
force user=fulanito, menganito
guest ok=yes
path=/xxx/xxx/xxx/
read only=no

5. Groups, Services:

/etc/group

samba_users:x:1000:tototl,nehuatl,root

/etc/services:
Neither smbd.service nor nmbd.service (or the like) listed, only:

smbdirect        5445/sctp  # Server Message Block over Remote Direct Memory Access
2

Hope this helps

{ config, pkgs, lib, ... }:

let
  username = "tolga";
in
{
  # Create Share1 and Share2 directories in each user's home directory using systemd tmpfiles
#

  # ---------------------------------------------------------------------
  # Add a systemd tmpfiles rule that creates a directory /var/spool/samba
  # with permissions 1777 and ownership set to root:root.
  # ---------------------------------------------------------------------
  systemd = {
    tmpfiles.rules = [
      "d /home/tolga/Share1 0775 tolga users -"
      "d /home/tolga/Share2 0775 tolga users -"
      "D! /tmp 1777 root root 0"
      "d /var/spool/samba 1777 root root -"
      "r! /tmp/**/*"
    ];

    # Default timeout for stopping services managed by systemd to 10 seconds
    extraConfig = "DefaultTimeoutStopSec=10s";

    # When a program crashes, systemd will create a core dump file, typically in the /var/lib/systemd/coredump/ directory.
    coredump.enable = true;

  };

  # Samba Service Configuration
  services.samba = {
    enable = true;
    package = pkgs.sambaFull;  # Using full Samba package for printing support
    securityType = "user";
    openFirewall = true;

    # Samba Global Settings
    settings = {
      global = {
        "workgroup" = "WORKGROUP";
        "server string" = "pussy";
        "netbios name" = "CUNT";
        "wins support" = "yes";
        "passdb backend" = "tdbsam";
        "security" = "user";
        "hosts allow" = "192.168.0. 127.0.0.1 localhost";
        "hosts deny" = "0.0.0.0/0";
        "aio read size" = "16384";
        "aio write size" = "16384";
        "client max protocol" = "SMB3";
        "client min protocol" = "COREPLUS";
        "kernel oplocks" = "yes";
        "level2 oplocks" = "yes";
        "max xmit" = "65535";
        "min receivefile size" = "16384";
        "oplocks" = "yes";
        "read raw" = "yes";
        "socket options" = "TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=131072 SO_SNDBUF=131072";
        "write raw" = "yes";
        "guest account" = "nobody";
        "map to guest" = "bad user";
        "load printers" = "yes";
        "printing" = "cups";
        "printcap name" = "cups";
        "cups options" = "raw";
      };

      # Samba Shares Configuration
      "homes" = {
        "comment" = "Home Directories";
        "valid users" = "%S, %D%w%S";
        "browseable" = "no";
        "read only" = "no";
        "inherit acls" = "yes";
      };

      "Public" = {
        "path" = "/home/tolga/Public";
        "browseable" = "yes";
        "read only" = "no";
        "guest ok" = "yes";
        "create mask" = "0644";
        "directory mask" = "0755";
        "force user" = "tolga";
        "force group" = "users";
      };

      "Mega" = {
        "path" = "/home/tolga/Documents/MEGA";
        "browseable" = "yes";
        "read only" = "no";
        "guest ok" = "yes";
        "create mask" = "0644";
        "directory mask" = "0755";
        "force user" = "tolga";
        "force group" = "users";
      };
    };
  };

  # Samba Web Service Discovery (Optional)
  services.samba-wsdd = {
    enable = true;
    openFirewall = true;
  };

  # Enable the firewall
  # networking.firewall.enable = true;
  networking.firewall.allowPing = true;
}