How to keep your Oracle database secure?

By admin News

Published by Jacob Martin on October 20, 2014

Almost every database stores important and sensitive data of enterprises. Therefore it is important to protect and secure database from any disaster or attackers. Likewise, if you are storing sensitive, personal or confidential data in your Oracle database, then you must know how to keep your data secure that is stored in Oracle database. So, read below to know how you can make your Database more secure.

Secure User accounts

Don not give unnecessary access to database users.
Restrict the SYSTEM and OBJECT privileges.
Limit the number of users who can create, modify or delete database object.
Grant CREATE ANY JOB, EXP_FULL_DATABASE and BECOME USER privilege only to those users who require them.
Provide CREATE PUBLIC SYNONYM and DROP PUBLIC SYNONYM only to those users on whom you have trust.

Secure User Access by selecting a secure and strong password

Remove default passwords since they are easy to hack so change them and select a complex and strong password.
Do not use same password for each schema.
Use stronger and longer passwords that consist of mixed letters, numerical and different signs.
Make a habit of changing your password form time to time.
While installation of Oracle, you can also decide how much time a user can enter incorrect password before getting his account deactivated.
If you want to store your password then kindly save it in encrypted format in Oracle database.

Secure Data

Protect the data dictionary because if there is any modification is done in it, then it can severely affect the database performance.
In order to protect data dictionary, set 07_DICTIONARY_ACCESSIBILITY = FALSE.
Restrict the number of user accessing OS.
Give the path or file to the database watchfully so that nobody can change it.
Access to the files and their path should be given only to DBA. Only
To protect data must use transparent data encryption method.

Secure Roles

Generate global roles for enterprise users.
Program developer should not be given user roles.
Classify roles as per to the user job responsibility.

Secure Installation and Configuration

Set the Oracle owner account umask value to 022, before you install Oracle database on UNIX system.
Don’t install unwanted program.
You must use custom installation process to prevent unwanted installation.
Once the installation of Oracle database completes, lock the default user account.

Secure the Network

Make use of Firewall to avoid your database from external access.
Set firewall to accept data only from trusted or safe sources.
Use Enterprise Manager Database Control at the time monitoring listener activity.
There is no need of setting password in the listener.ora file.
Avoid Oracle listener from unauthorized access.

Use Oracle Database Repair tool to recover data

Oracle database repair tool help in restoring data if it gets corrupted due to virus, abrupt system shutdown, network connection, etc and keep your files and data safe and secure. The tool comes with user friendly interface and within few simple steps you can easily recover your Oracle database data securely. So, why are you waiting for download and try out Oracle database repair for free and check how it works.

Steps to restore corrupted oracle database

Step 1: Search Initial screen of Stellar Phoenix Oracle Recovery with a pop-up window showing options to select or search corrupt Oracle databases in your computer. 1-6064575

Step 2: Click Scan File to initiate the scan process after selecting the oracle database. The recoverable database objects get listed in left-side pane.

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Step 3: Click an object to see its preview.

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Step 4: : Click Start Repair in the icon bar to start the repair process. A pop-up window is displayed which show the steps needed to perform further. Click next and continue.

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