Use the Release 1 (11.1), most of its default accounts are locked with the passwords expired.If you have upgraded from an earlier release of Oracle Database, you may have user accounts that have default passwords.For greater security, however, follow the additional guidelines described in "Guidelines for Securing Passwords".To create passwords for users, you can use the Database security systems that depend on passwords require that passwords be kept secret at all times.
Authorization is described in Chapter 4, "Configuring Privilege and Role Authorization".
Validating that identity establishes a trust relationship for further interactions.
Authentication also enables accountability by making it possible to link access and actions to specific identities.
Here are some scenarios where this would be useful: .
Optimal Gateway works great if you have separate Xen Desktop sites/farms in each datacenter.