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Oracle® Database Reference
12c Release 1 (12.1)

E17615-24
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OS_AUTHENT_PREFIX

Property Description
Parameter type String
Syntax OS_AUTHENT_PREFIX = authentication_prefix
Default value OPS$
Modifiable No
Basic No

OS_AUTHENT_PREFIX specifies a prefix that Oracle Database uses to authenticate users attempting to connect to the server. Oracle Database concatenates the value of this parameter to the beginning of the user's operating system account name. When a connection request is attempted, Oracle Database compares the prefixed username with Oracle user names in the database.

The default value of this parameter is OPS$ for backward compatibility with previous versions. However, you might prefer to set the prefix value to "" (a null string), thereby eliminating the addition of any prefix to operating system account names.

Note:

The text of the OS_AUTHENT_PREFIX parameter is case sensitive on some operating systems.

See Also:

  • Oracle Database Security Guide for more information on setting this parameter

  • Your operating system-specific Oracle documentation for the default value