--- samba-4.9.4/examples/smb.conf.default.orig	2019-02-13 18:58:06.784980885 +0100
+++ samba-4.9.4/examples/smb.conf.default	2019-02-13 18:59:19.097289090 +0100
@@ -108,6 +108,9 @@
 ;  delete user from group script = /usr/sbin/deluser %u %g
 ;  delete group script = /usr/sbin/groupdel %g
 
+# Needed when used with Winbind
+idmap config * : backend = tdb
+idmap config * : range = 3000-7999
 
 #============================ Share Definitions ==============================
 [homes]