Distributed Database and Multitier Security
All the security features available for standard Oracle databases are also available for
the distributed database environment, which is covered in Chapter 13. However, the
distributed database environment introduces additional security considerations. For
example, user accounts needed to support server connections must exist in all of the
distributed databases forming the system. As database links (which define connections
between distributed database instances) are created, you will need to allow the
user accounts and roles needed at each site.
Distributed security management
For large implementations, you may want to configure global authentication across
these distributed databases for users and roles. Global authentication allows you to
maintain a single authentication list for multiple distributed databases. Where this
type of external authentication is required, Oracle??™s Advanced Security Option, discussed
in the next section, provides a solution.
Enterprise Manager is commonly used to configure valid application users to Oracle??™s
LDAP-compliant OID server.
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