Help me to learn if this scenario is doable using Linux. I want to secure the access to a system path called "/mnt/data".
System users retrictions:
- 'daemon_user': read/write access.
- 'read_user': only read.
- 'appender_user': add files but NOT delete or overwrite existing ones.
'daemon_user' constantly creates new files so the "do not delete/overwrite" restriction has to apply for the new files created as well.
Note: Initially I discard to use 'chattr' since that applies to all users, including root. I don't want that level of restriction.