This page provides information for checking if a port is already in use that may be the default configuration for imaging.
For more information, refer to:
The ports used by imaging can be seen in the documentation here : Prerequisites for CAST Imaging
By running the below command, you can get the process id of the port being used
To reconfigure imaging:
Change the port number to a free port (like 82) in the configuration file nginx.conf located in the below path