diff --git a/source3/winbindd/winbindd.c b/source3/winbindd/winbindd.c
index 937f68d..e6fb0fa 100644
--- a/source3/winbindd/winbindd.c
+++ b/source3/winbindd/winbindd.c
@@ -1216,6 +1216,12 @@ static void winbindd_register_handlers(struct messaging_context *msg_ctx,
 		}
 	}
 
+	if (tevent_add_timer(winbind_event_context(), NULL, 
+					timeval_current_ofs(3*60,0),
+			      		cleanup_idle_winbindd_child, NULL) == NULL) {
+		DEBUG(0, ("Could not trigger cleanup_idle_winbindd_child()\n"));
+	}
+
 }
 
 struct winbindd_addrchanged_state {
diff --git a/source3/winbindd/winbindd_proto.h b/source3/winbindd/winbindd_proto.h
index 33a7082..e5b4d58 100644
--- a/source3/winbindd/winbindd_proto.h
+++ b/source3/winbindd/winbindd_proto.h
@@ -394,6 +394,8 @@ struct winbindd_domain *domain_list(void);
 bool domain_is_forest_root(const struct winbindd_domain *domain);
 void rescan_trusted_domains(struct tevent_context *ev, struct tevent_timer *te,
 			    struct timeval now, void *private_data);
+void cleanup_idle_winbindd_child(struct tevent_context *ev, struct tevent_timer *te,
+			    struct timeval now, void *private_data);
 enum winbindd_result winbindd_dual_init_connection(struct winbindd_domain *domain,
 						   struct winbindd_cli_state *state);
 bool init_domain_list(void);
diff --git a/source3/winbindd/winbindd_util.c b/source3/winbindd/winbindd_util.c
index a00fe14..a05a3b9 100644
--- a/source3/winbindd/winbindd_util.c
+++ b/source3/winbindd/winbindd_util.c
@@ -563,6 +563,48 @@ void rescan_trusted_domains(struct tevent_context *ev, struct tevent_timer *te,
 	return;
 }
 
+void cleanup_idle_winbindd_child(struct tevent_context *ev, struct tevent_timer *te,
+			    struct timeval now, void *private_data)
+
+{
+	struct winbindd_domain *domain;
+	int i=0;
+
+	TALLOC_FREE(te);
+
+	for (domain = domain_list(); domain != NULL; domain = domain->next) {
+		for (i=0; i<lp_winbind_max_domain_connections(); i++) {
+			struct winbindd_child* child = NULL;
+			child = &domain->children[i];
+
+			if (!child || ((child->pid) <= 1) || (child->domain==NULL) || 
+				(child->domain->startup == True)) {
+
+				continue;
+			}
+			if (tevent_queue_length(child->queue) > 0) {
+				DEBUG(10, ("cleanup_idle_winbindd_child: process(%d) is NOT free - %d \n", 
+					(int)child->pid, tevent_queue_length(child->queue)));
+
+				continue;
+			} 
+			DEBUG(10, ("cleanup_idle_winbindd_child: exit child process(%d) \n", (int)child->pid));
+
+			/* ask child to exit */
+			kill(child->pid, SIGTERM);
+		}
+	}
+
+	if (tevent_add_timer(winbind_event_context(), NULL, timeval_current_ofs(3*60,0),
+			      	cleanup_idle_winbindd_child, NULL) == NULL) {
+		DEBUG(0, ("Could not trigger cleanup_idle_winbindd_child()\n"));
+	} else {
+		DEBUG(0, ("Installed next cleanup_idle_winbindd_child()\n"));
+	}
+
+}
+
+
 enum winbindd_result winbindd_dual_init_connection(struct winbindd_domain *domain,
 						   struct winbindd_cli_state *state)
 {