Problems with running Pure-FTPd

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I’m on 23.05 channel now. I installed Pure-FTPd to run FTP server on my machine, because I’m kinda familiar with it.

I could not found any options for that package. I had to use overrideAttrs to add PureDB support, however I’m still not sure if it is now available, because starting Pure-FTPd via systemd service gives that in log:

pure-ftpd[151275]: (?@?) [ERROR] Unknown authentication method: puredb:/path/to/pure-ftpd.pdb

BTW package did not contain systemd service file configuration.

I ended up with pure-ftpd.nix configuration file like this:

{ pkgs, config, ... }:

{
  environment.systemPackages = [
    (pkgs.pure-ftpd.overrideAttrs (oldAttrs: {
      configureFlags = oldAttrs.configureFlags ++ [ "--with-puredb" ];
    }))
  ];

  systemd.services.pure-ftpd = {
    description = "PureFTPD Server";
    wantedBy = [ "multi-user.target" ];
    serviceConfig = {
      ExecStart = "${pkgs.pure-ftpd}/bin/pure-ftpd --noanonymous --notruncate --login puredb:/path/to/pure-ftpd.pdb --prohibitdotfilesread --maxdiskusagepct 90% --bind 21 --chrooteveryone --nochmod --customerproof --dontresolve --passiveportrange 30000:30020";
      User = "ftp";
      Group = "ftp";
    };
  };

  users.extraGroups.ftp.gid = config.ids.gids.ftp;
  users.extraUsers.ftp = {
    uid = config.ids.uids.ftp;
    group = "ftp";
    description = "FTP user";
    home = "/path/to/ftp/root/";
  };

  networking.firewall.allowedTCPPortRanges = [ { from = 30000; to = 30020; } ];
}

What is more strange: I’ve created passwd and pdb files following Arch guide. Now when running:

$ pure-pw list -f /path/to/pure-ftpd.passwd

I get:

Unable to open the passwd file: No such file or directory

despite file existence and being (probably) valid password file.

Can anyone help me with setting up Pure-FTPd on NixOS?