Table of Contents
4 Frontend maintenance mode
Overview
Áú»¢¶Ä²© web frontend can be temporarily disabled in order to prohibit access to it. This can be useful for protecting the Áú»¢¶Ä²© database from any changes initiated by users, thus protecting the integrity of database.
Áú»¢¶Ä²© database can be stopped and maintenance tasks can be performed while Áú»¢¶Ä²© frontend is in maintenance mode.
Users from a defined range of IP addresses will be able to work with the frontend normally during maintenance mode.
Configuration
In order to enable maintenance mode, the maintenance.inc.php file (located in /conf of the Áú»¢¶Ä²© HTML document directory on the webserver) must be modified to uncomment the following lines:
// Maintenance mode
define('ZBX_DENY_GUI_ACCESS',1);
// IP range, who allowed to connect to FrontEnd
$ZBX_GUI_ACCESS_IP_RANGE = array('127.0.0.1');
// MSG showed on Warning screen!
$_REQUEST['warning_msg'] = 'We are upgrading MySQL database till 15:00. Stay tuned...';| Parameter | Details |
|---|---|
| ZBX_DENY_GUI_ACCESS | Enable maintenance mode: 1 – maintenance mode is enabled, disabled otherwise |
| ZBX_GUI_ACCESS_IP_RANGE | Connections from these IP addresses will be allowed during the maintenance mode. For example: 192.168.1.1-255 |
| warning_msg | A message you can enter to inform users about the maintenance. |
Display
The following screen will be displayed when trying to access the Áú»¢¶Ä²© frontend while in maintenance mode. The screen is refreshed every 30 seconds in order to return to a normal state without user intervention when the maintenance is over.
IP addresses defined in ZBX_GUI_ACCESS_IP_RANGE will be able to access the frontend as always.