How to oracle user password

Oracle database is a relational database management system widely used in enterprises today. The security of the data in the database is very important, so protection in this regard is particularly important. The protection of Oracle user passwords is one of the key elements.

In this article, we will explore how to correctly set the Oracle user password to protect the security of the database. Here are some important steps and considerations.

Step One: Set Complex Password Rules

Preventing passwords from being weak, guessed, reused or leaked is a basic measure to protect your Oracle database. Oracle provides some strong password rules to ensure password complexity. Oracle Database should set these rules by default and require administrators and users to meet these rules. These rules include the following:

· Maximum Password Length: Oracle standard passwords have a maximum length of 30 characters. Starting with Oracle 12c, the maximum password length can be increased to 128 characters.

· Password complexity: Oracle recommends setting a password of at least 8 to 12 characters, including numbers, uppercase letters, lowercase letters, and special characters, and should not contain usernames and other user-related information.

· Password expiration period: Setting a password expiration time for users can ensure that passwords are changed regularly. Oracle recommends that administrators set password expiration time to 90 days.

· Lock out failed login attempts: If a user enters an incorrect password multiple times within a certain period of time, their account should be locked.

The above rules can be set in the Oracle database to ensure the complexity of the database password.

Step 2: Use the password hashing algorithm

The password hashing algorithm can ensure that when the user password is stored in the database, it will not be leaked during the storage process. The password hashing algorithm converts the user password into a long random character set and stores it in the database. When a user enters their password, that input password is also hashed and compared to the stored hashed password. If they match, the verification is successful.

Password hashing algorithms prevent passwords from being obtained through network sniffing or database leaks. In Oracle database, the main password hashing algorithms are SHA-1, SHA-2, MD5, etc. SHA-2 has been widely recognized as one of the more secure password hashing algorithms. In Oracle 11g and later, SHA-2 has become the default password hashing algorithm. Therefore, setting the password hashing algorithm is an important aspect of ensuring password security.

Step Three: Use Oracle Security Enhancement Tools

Oracle's own security enhancement tools and technologies can also help protect the security of user passwords. The following are Oracle security enhancement tools and techniques:

· Avoid using Oracle databases on public computers whenever possible.

· Use Oracle's data encryption capabilities to ensure the security of sensitive data.

· Enable Oracle's security enhancement features, such as data masking, data redaction, auditing and access control.

· Use Oracle situation-related auditing to understand activity in your database and discover and block potential threats.

Finally, it should be noted that all protection measures and strategies require the active cooperation and implementation of database administrators and users. Password policies and practices should also be regularly evaluated and reviewed to ensure they comply with the latest security standards and best practices.

In short, through the above three steps, the security of the Oracle user password can be ensured. This aspect is very important in Oracle database management and should be paid enough attention to.

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