as the latest version , 9.3.8 , we have Harvester on RH linux, and as documentation here , it supports :
"Red Hat Enterprise Linux 6.7, 6.8 or 7.3 on a 64-bit processor"
but if you run the installation on your RH 7.3 linux box you will get this error message:
but until CA fix this werid behavior , you still can install harvester on your RH 7.3 linux box by running this command:
./NFHarvesterSetup9.3.8.bin -i console
which will run the setup in interactive text mode, and the installation will run normally.
I will update if any issues appear while running the product.