1. Installation and Administration Guide
  2. Install Oracle Machine Learning for R Server
  3. Oracle Machine Learning for R Server Requirements
  4. User Requirements
  5. About Operating System Authentication

4.2.3.1 About Operating System Authentication

Describes the operating system authentication used by OML4R Server.

The OML4R Server installation script uses system authentication to connect to the database identified by ORACLE_HOME and ORACLE_SID. System authentication is based on the operating system credentials of the user instead of the database credentials.

For example, on a Linux system, the OML4R installation script uses this statement to start SQL*Plus without a password: 

$ORACLE_HOME/bin/sqlplus / as sysdba

Membership in a special operating system group enables system authentication for Oracle Database. The operating system group is created during installation of the database, and the identity of the installer is automatically assigned to the group. The generic name for the group is OSDBA. On Linux and UNIX, the name for OSDBA is dba. On Windows, the name for OSDBA is ora_dba.

The user that installs OML4R Server must belong to OSDBA.

See Also:

Parent topic: User Requirements