Hi, I think we can detect Linux hosts through cPanel HTTP server banner:
Banner: Server: cPanel
Identified from: HTTP Server banner on port 2077/tcp
Banner: Server: cPanel
Identified from: HTTP Server banner on port 2078/tcp
Banner: Server: cPanel
Identified from: HTTP Server banner on port 2079/tcp
Banner: Server: cPanel
Identified from: HTTP Server banner on port 2080/tcp
The Installation | cPanel & WHM Documentation page only has a guide to install the application on Linux.