openATTIC can be installed on Linux only. It is designed to run on commodity hardware, so you are not in any way bound to a specific vendor or hardware model.

You need to make sure that your Linux distribution of choice supports the hardware you intend to use. Check the respective hardware compatibility lists or consult your hardware vendor for details.

Supported distributions

Installable packages of openATTIC 3.6 are currently available for the following Linux distributions:


openATTIC has been designed to be installed on a 64-bit Linux operating system. Installation on 32-bit systems is not supported.

Base Operating System Installation

The basic installation of the operating system (Linux distribution) depends on your requirements and preferences and is beyond the scope of this document.

Consult the distribution’s installation documentation for details on how to perform the initial deployment.

We recommend performing a minimal installation that just installs the basic operating system (no GUI, no development tools or other software not suitable on a production system).

Post-installation Operating System Configuration

After performing the base installation of your Linux distribution of choice, the following configuration changes should be performed:

  1. The system must be connected to a network and should be able to establish outgoing Internet connections, so additional software and regular OS updates can be installed.
  2. Make sure the output of hostname --fqdn is something that makes sense, e.g. instead of localhost.localdomain. If this doesn’t fit, edit /etc/hostname and /etc/hosts to contain the correct names.
  3. Install and configure an NTP daemon on every host, so the clocks on all these nodes are in sync.
  4. HTTP access might be blocked by the default firewall configuration. Make sure to update the configuration in order to enable HTTP access to the openATTIC API/Web UI.

Consult your Linux distribution’s documentation for further details on how to make these changes.