Describes the operating system authentication used by Oracle Machine Learning for R Server.

The Oracle Machine Learning for R 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 Oracle Machine Learning for R 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 AI 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, the name for OSDBA is dba.

The user that installs Oracle Machine Learning for R Server must belong to OSDBA.