Following error can be seen in startup.log
2024-12-05 18:39:06.702194 EST,,,p360163,th950507776,,,,0,,,seg-1,,,,,"FATAL","F0000","private key file ""server.key"" has group or world access","Permissions should be u=rw (0600) or less.",,,,,,,"initialize_SSL","be-secure.c",893,
Excessive permissions set to server.key file
Run the following command to deny Other and Group all permissions on the key file, and rerun gpstart
$ chmod og-rwx server.key