Security of Oracle Database systems

Oracle 9i Security System

1. Security of the physical layer
The node on which the database resides must be physically and reliably protected.
2. Security for the user layer
Which users can use the database, which data objects to use the database, what permissions, and so on.
3. Security for the operating system layer
The weakness of the operating system of the host where the database resides will potentially provide a portal to the malicious attack database.
4. Security of the network layer
Oracle 9i database is mainly network-oriented, so the security of network software and the security of network data transmission are very important.
5. Security of the database system layer
Secure the database system layer by granting the user the right to access the database object specifically.

Security mechanisms for Oracle 9i

1. System security Mechanism
The system security mechanism refers to the mechanism of controlling the access and use of the database at the whole database system level.
2. Data security mechanism
The data security mechanism refers to the mechanism of controlling the access and use of the database at the object level.