I have basic question about installing applications on Linux operating system, using the Oracle database as an example. When installing the Oracle database package, I created a user called
ora112, a group called
dba, and added the user to that group.
So my question is, if the
ora112 user's umask is set to 077, then no other users will be able to configure the Oracle database. Why do we need to follow this practice? Is it a accepted procedure in application installation on Linux. Please share your experience with me.
Similarly, if I install java in this way, then will application belonging to different user accounts be prevented from running java because of this access restriction.