Linux User Accounts
This topic does not apply to Oracle Cloud Infrastructure or to Oracle Cloud at Customer.
Both compute nodes are provisioned with the following operating system user accounts.
User | Description |
---|---|
|
The system administrator account you use to connect to the compute node using SSH. This user can use the |
|
The Oracle Database administrator account you use to access the system and perform non-root database administration tasks. A home directory, |
|
The Oracle Grid Infrastructure administrator account you use to perform ASM, ACFS, and clusterware administration tasks. A home directory, |
|
The root administrator for the system. You do not have direct access to this account. To perform operations that require root-user access, use the |
The following environment variable settings are created for the opc
, oracle
and grid
users.
Variable | Description |
---|---|
|
The home directory of the user, either |
|
The host name of the compute node:
|
|
The system language, |
|
The default shell, |
|
The user name, either |
In addition, the PATH
variable is also created for all three users, but its value differs (line breaks added to improve clarity):
-
For the
opc
user:/opt/oracle/dcs/client/bin:/usr/java/jdk1.7.0_72/bin: /usr/lib64/qt-3.3/bin: /usr/local/bin:/bin:/usr/bin: /usr/local/sbin:/usr/sbin:/sbin: /home/opc/bin
-
For the
oracle
user:/usr/lib64/qt-3.3/bin: /usr/local/bin:/bin:/usr/bin: /usr/local/sbin:/usr/sbin:/sbin: /u01/app/oracle/product/db-version/dbhome_1/bin: /home/oracle/bin
where
db-version
is18.0.0
,12.2.0.1
,12.1.0.2
or11.2.0.2
, depending on which version of Oracle Database was installed. -
For the
grid
user:/usr/lib64/qt-3.3/bin: /usr/local/bin:/bin:/usr/bin: /usr/local/sbin:/usr/sbin:/sbin: /u01/app/12.1.0.2/grid/bin: /home/grid/bin
In addition, the following environment variable settings are created for the oracle
user.
Variable | Description |
---|---|
|
The Oracle Database library directory:
|
|
The Oracle Database home directory:
|
|
The database system identifier (SID) for the database instance on the compute node:
where |
|
The database system identifer (SID) provided as the DB Name (SID) value during the database deployment creation process. |
In addition, the following environment variable settings are created for the grid
user.
Variable | Description |
---|---|
|
Set to |
|
The Oracle Grid Infrastructure home directory: |