nixpkgs/nixos/modules/services/system/kerberos.nix

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{pkgs, config, lib, ...}:
let
inherit (lib) mkOption mkIf singleton;
inherit (pkgs) heimdal;
stateDir = "/var/heimdal";
in
{
###### interface
options = {
services.kerberos_server = {
enable = mkOption {
default = false;
description = ''
Enable the kerberos authentification server.
'';
};
};
};
###### implementation
config = mkIf config.services.kerberos_server.enable {
environment.systemPackages = [ heimdal ];
services.xinetd.enable = true;
services.xinetd.services = lib.singleton
{ name = "kerberos-adm";
flags = "REUSE NAMEINARGS";
protocol = "tcp";
user = "root";
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server = "${pkgs.tcp_wrappers}/sbin/tcpd";
serverArgs = "${pkgs.heimdal}/sbin/kadmind";
};
jobs.kdc =
{ description = "Kerberos Domain Controller daemon";
startOn = "ip-up";
preStart =
''
mkdir -m 0755 -p ${stateDir}
'';
exec = "${heimdal}/sbin/kdc";
};
jobs.kpasswdd =
{ description = "Kerberos Domain Controller daemon";
startOn = "ip-up";
exec = "${heimdal}/sbin/kpasswdd";
};
};
}