Sign Specifications and Network Configuration
Signs run an LTS version of the Ubuntu operating system. By default, the sign’s network settings are set through DHCP, although a static network configuration is available by request.
All communication is performed over port 443 (HTTPS), and is initiated by the sign. By default, this outbound communication occurs every 60 seconds. For networks that restrict access through firewalls or other means, it’s recommended to whitelist all subdomains of signcommand.com (
*.signcommand.com), as well as the Amazon AWS S3 service (
*.s3.amazonaws.com). The specific domains currently in use are:
Signs on the SignCommand network do not require access to an organization’s internal network or direct communication with the machine accessing the client application. You may choose to isolate the sign from the rest of the network, or use another method of communication to the internet entirely.
Control of the sign is achieved through a web browser over a secure connection to the SignCommand servers. For more information, see our Requirements page. For client use on the network, access to the following URLs is required: