Files from multiple systems are being stored on a centralized log server.

The recommended approach for setting the host values based on their origin when files from multiple systems are stored on a centralized log server is to use the host_segment setting. This setting allows you to dynamically set the host value based on a specific segment of the file path, which can be particularly useful when organizing logs from different servers into directories.

Splunk Documentation Reference: Inputs.conf - host_segment