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Oracle Database Security Best Practice

1. Protecting the database environment

2. Install only what is required

3. Lock and expire default user accounts

4. Changing default user passwords

5. Change passwords for administrative accounts

6. Change default passwords for all users

7. Enforce password management

8. Secure batch jobs

9. Manage access to SYSDBA and SYSOPER roles

10. Enable Oracle data dictionary protection

11. Follow the principle of least privilege

12. Public privileges

13. Restrict permissions on run-time facilities

14. Authenticate clients

15. Restrict operating system access

16. Secure the Oracle listener

17. Secure external procedures

18. Prevent run time changes to listener

19. Checking network IP addresses

20. Harden the operating system

21. Encrypt network traffic

22. Apply all security patches

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