The Linux remote agent is installed on the BE Server as part of the BE installation. You don't have to download it.
Read the Admin Guide for the installation guide.
You would need a Linux remote agent licence for each of the Linux server to be backed up.
We have deployed a Backup exec 16 trial version on our windows server and try to test a Linux server backup for oracle database.
once backup are done successfully in trial period, we will buy a permenant license.
As per the report , we have 54 days remaining for Trial version and Linux agent are installed.
Kindly check the attachement and advice that trial version will be work or not in Linux server .
Your trial version will work for Linux and Oracle databases (provided you have checked compatibility lists).
I am curious to know where you downloaded the software from?
BE16 is end of life.
The current trial version is 21: