Oracle Database requires special authentication procedures for database administrators, because they perform special database operations. For simplicity, the same authentication method is generally used for all database users, but Oracle Database allows a single database instance to use any or all methods.
You can authenticate both database and nondatabase users for an Oracle database. After authentication, authorization processes can allow or limit the levels of access and action permitted to that entity. Authentication also enables accountability by making it possible to link access and actions to specific identities. Validating this identity establishes a trust relationship for further interactions. Oracle Database provides data dictionary views that list information about user authentication, such as roles that users have or profiles they use.
User Authentication Data Dictionary Views. 
You can use middle tier servers for proxy authentication and client identifiers to identify application users who are not known to the database.
Preserving User Identity in Multitiered Environments. In a multitier environment, an application server provides data for clients and serves as an interface to one or more database servers. Administration and Security in Clients, Application Servers, and Database Servers. Oracle Database secures middle-tier applications by limiting privileges, preserving client identities through all tiers, and auditing actions by clients. Multitier Authentication and Authorization. Configuring an External Service to Authenticate Users and PasswordsĪn external service (the operating system or the network) can administer passwords and authenticate users. Global user authentication and authorization enables you to centralize the management of user-related information. Global User Authentication and Authorization. The DBMS_CREDENTIAL.CREATE_CREDENTIAL procedure configures user accounts to be operating system users for a PDB. 
Configuring Operating System Users for a PDB. You can authenticate users over a network by using Transport Layer Security with third-party services. Oracle Database can authenticate by using information that is maintained by the operating system. Operating System Authentication of Users. You can create schema-only accounts, that is, the schema user has no password. You can authenticate database administrators by using strong authentication, from the operating system, or from the database using passwords.ĭatabase authentication of users entails using information within the database itself to perform the authentication. Authentication of Database Administrators. #Password recovery bundle 2012 1.9 trial download password#
You can secure user passwords in a variety of ways, such as controlling the password creation requirements or using password management policies. Authentication means verifying the identity of a user, device, or other entity who wants to use data, resources, or applications.
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