Allow dots to be used in domain names.

app/admin/import-export/import-subnets-check.php

@@ -166,7 +166,7 @@ foreach ($data as &$cdata) {
 		if (preg_match("/[;'\"]/", $cdata['description'])) { $msg.="Invalid characters in description."; $action = "error"; }
 		if ((!empty($cdata['vrf'])) && (!preg_match("/^[a-zA-Z0-9-_]+$/", $cdata['vrf']))) { $msg.="Invalid VRF name format."; $action = "error"; }
 		if ((!empty($cdata['vlan'])) && (!preg_match("/^[0-9]+$/", $cdata['vlan']))) { $msg.="Invalid VLAN number format."; $action = "error"; }
-		if ((!empty($cdata['domain'])) && (!preg_match("/^[a-zA-Z0-9-_ ]+$/", $cdata['domain']))) { $msg.="Invalid VLAN domain format."; $action = "error"; }
+		if ((!empty($cdata['domain'])) && (!preg_match("/^[a-zA-Z0-9-_. ]+$/", $cdata['domain']))) { $msg.="Invalid VLAN domain format."; $action = "error"; }
 	}
 
 	# check if duplicate in the import data

app/admin/import-export/import-vlan-check.php

@@ -71,7 +71,7 @@ foreach ($data as &$cdata) {
 		if (!preg_match("/^[a-zA-Z0-9-_]+$/", $cdata['name'])) { $msg.="Invalid name format."; $action = "error"; }
 		if (!preg_match("/^[0-9]+$/", $cdata['number'])) { $msg.="Invalid number format."; $action = "error"; }
 		if (preg_match("/[;'\"]/", $cdata['description'])) { $msg.="Invalid characters in description."; $action = "error"; }
-		if (!preg_match("/^[a-zA-Z0-9-_ ]+$/", $cdom)) { $msg.="Invalid domain format."; $action = "error"; }
+		if (!preg_match("/^[a-zA-Z0-9-_. ]+$/", $cdom)) { $msg.="Invalid domain format."; $action = "error"; }
 		if ($action != "error") { if ($cdata['number']>$User->settings->vlanMax) { $msg.= _('Highest possible VLAN number is ').$User->settings->vlanMax.'!'; $action = "error"; } }
 	}