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Znuny – Planning and managing system maintenance

Znuny – Planning and managing system maintenance

Section titled “Znuny – Planning and managing system maintenance”

System maintenance is a central component of any IT administration. Some maintenance tasks require a temporary suspension of live operations. In these cases, it is particularly important to inform users in good time and to keep the system accessible only to administrators. With the System maintenance module in the Admin interface, Znuny provides a clear interface for creating and adjusting maintenance windows and warning users via login notices or in-app notifications.


  1. Click on Add new system maintenance.
  2. Fill in Start date, End date, and Comment (description).
  3. Optionally activate the Login message and/or Notification message.
  4. Save with Save.

  1. Select the entry in the maintenance overview.
  2. Adjust the start/end date, message, or validity status.
  3. Click on Save.

  1. Click on the trash icon next to the desired entry.
  2. Confirm with Confirm.

Note: Use the filter field to quickly find maintenance tasks by name.


  • Start date / End date
  • Comment * (displayed in the list)
  • Show login message (login screen)
  • Notification message (in-app notice before maintenance)
  • Validity * (active / inactive)
    ::: tip You can define the default texts for login and in-app messages in the System configuration:
  • SystemMaintenance::IsActiveDefaultLoginMessage
  • SystemMaintenance::IsActiveDefaultNotification
    You can control the timing of the in-app warning before maintenance begins with
    SystemMaintenance::TimeNotifyUpcomingMaintenance (minutes before start). :::

In addition to scheduled maintenance, it is often necessary to monitor active user sessions and terminate them if required. In the Session management module, you can see all currently logged-in users:

  • Terminate individual sessions: Click on Terminate this session
  • Terminate all except your own session: Click on Terminate all sessions except your own

These functions help to quickly clean up the system after maintenance or in the event of security incidents.

Section titled “These functions help to quickly clean up the system after maintenance or in the event of security incidents.”

With the System maintenance module and Session management, Znuny provides administration tools to:

  1. Announce maintenance windows transparently
  2. Inform users proactively
  3. Restrict access during the maintenance window
  4. Securely manage active sessions at any time
    This ensures smooth system maintenance while maintaining user satisfaction.