B Disabling and Enabling Oracle Database Vault

This appendix contains:

When You Must Disable Oracle Database Vault
Checking if Oracle Database Vault Is Enabled or Disabled
Step 1: Disable Oracle Database Vault
Step 2: Perform the Required Tasks
Step 3: Enable Oracle Database Vault

When You Must Disable Oracle Database Vault

You may need to disable Oracle Database Vault to perform upgrade tasks or correct erroneous configurations. You can reenable Oracle Database Vault after you complete the corrective tasks.

Note:

Be aware that if you disable Oracle Database Vault, the privileges that were revoked from existing users and roles during installation remain in effect. See "Privileges That Are Revoked or Prevented from Existing Users and Roles" for a listing of the revoked privileges.

The following situations require you to disable Oracle Database Vault:

The Oracle Database Vault user accounts have been inadvertently locked or their passwords forgotten. (See the tip under "Oracle Database Vault Accounts" for a guideline for avoiding this problem in the future.)
A rule set associated with the CONNECT role has been configured incorrectly. This is resulting in failed database logins for all accounts, including those with the DV_OWNER or DV_ADMIN role, who could correct this problem.
You must perform maintenance tasks on Oracle Database Vault.
You must install any of the Oracle Database optional products or features, such as Oracle Spatial, or Oracle Multimedia, by using Database Configuration Assistant (DBCA).
You are about to install a third-party product, install an Oracle product, or perform an Oracle patch update whose installation may be prevented if Oracle Database Vault is running.
You must archive the Oracle Database Vault audit trail.

Checking if Oracle Database Vault Is Enabled or Disabled

You can check if Oracle Database Vault has already been enabled or disabled by querying the V$OPTION table. Any user can query this table. If Oracle Database Vault is enabled, the query returns TRUE. Otherwise, it returns FALSE.

Remember that the PARAMETER column value is case sensitive. For example:

SELECT * FROM V$OPTION WHERE PARAMETER = 'Oracle Database Vault';

If Oracle Database Vault is enabled, the following output appears:

PARAMETER                     VALUE
----------------------------- -----------------------
Oracle Database Vault         TRUE

Step 1: Disable Oracle Database Vault

This section contains the following topics:

Disabling Oracle Database Vault on UNIX Systems
Disabling Oracle Database Vault on Microsoft Windows Systems

Note:

After you disable Oracle Database Vault, you still can run the Oracle Database Vault API functions. In addition, after you disable Oracle Database Vault, the ANY privileges are available.

Disabling Oracle Database Vault on UNIX Systems

Follow these steps to disable Oracle Database Vault on UNIX systems:

Turn off the software processes. Make sure that the environment variables, ORACLE_HOME, ORACLE_SID, and PATH are correctly set.

Stop the dbconsole process in case it is running. For both single-instance and Oracle Real Application Clusters installations, run the following command at a command prompt:
```
emctl stop dbconsole
```
For single-instance installations, shut down the database instance:
```
sqlplus sys as sysoper
Enter password: password

SHUTDOWN NORMAL
EXIT
```
For Oracle Real Application Clusters (Oracle RAC) installations, shut down each database instance as follows, from a command prompt:
```
srvctl stop database -d db_name
```
If you cannot connect to the database, then proceed to the next step.
At a command prompt, run the following commands to turn off the Oracle Database Vault option:
```
cd $ORACLE_HOME/rdbms/lib
make -f ins_rdbms.mk dv_off ioracle 
```
For Oracle RAC installations, run these commands on all nodes.
In SQL*Plus, start the database.

For single-instance database installations:
```
sqlplus sys as sysoper
Enter password: password

STARTUP
```
For Oracle RAC installations:
```
srvctl start database -d db_name 
```
If the reason you needed to disable Oracle Database Vault was because of forgotten passwords, then connect SQL*Plus as SYS or SYSTEM and reset the password.

For example:
```
sqlplus system
Enter password: password

ALTER USER DBVOWNER IDENTIFIED BY password;
```

Disabling Oracle Database Vault on Microsoft Windows Systems

Follow these steps to disable Oracle Database Vault on Windows systems:

Stop the database service.

In the Control Panel, under Administrative Services, select the Services utility. Select the Standard tab, right-click the following services, and from the menu, select Stop:
- OracleServiceSID
- OracleHOMETNSListener
Under ORACLE_HOME\bin, rename the oradvrelease_number.dll file, for example, oradv11_backup.dll.
Restart the database service.

In the Control Panel, under Administrative Services, select the Services utility. Select the Standard tab, right-click the following services, and from the menu, select Start:
- OracleServiceSID
- OracleHOMETNSListener
For RAC systems, repeat these steps for each node on which the database is installed.
If the reason you needed to disable Oracle Database Vault was because of forgotten passwords, then log in to SQL*Plus as SYS or SYSTEM and reset the password.

For example:
```
sqlplus system
Enter password: password

ALTER USER DBVOWNER IDENTIFIED BY password;
```

Step 2: Perform the Required Tasks

At this stage, Oracle Database Vault is disabled. You can perform the following types of activities:

Use the Oracle Database Vault PL/SQL packages and functions. For example, to correct a login or CONNECT rule set error, use the DBMS_MACADM PL/SQL package or the Oracle Database Vault Administrator interface.
Note:
If you are using Oracle Database Vault Administrator, then you must start the dbconsole process. You can check the status of the dbconsole process by entering the following command from the $ORACLE_HOME/bin directory of the Oracle home in which you deployed Database Vault Administrator:
```
./emctl status dbconsole
```
To start dbconsole:
```
./emctl start dbconsole
```
Use the SYSTEM or SYS accounts to perform tasks such as creating or changing passwords, or locking and unlocking accounts. In addition to modifying regular database and administrative user accounts, you can modify passwords and the lock status of any of the Oracle Database Vault-specific accounts, such as users who have been granted the DV_ADMIN or DV_ACCTMGR roles. (See the tip under "Oracle Database Vault Accounts" for a guideline for avoiding this problem in the future.)
Perform the installation, upgrade, or other tasks that require security protections to be disabled. If you must run Oracle Database Vault Configuration Assistant (DVCA), ensure that the Oracle Database listener is running. To start the listener, run the following command from the $ORACLE_HOME/bin directory:
```
$ ./lsnrctl start [listener_name]
```

Step 3: Enable Oracle Database Vault

This section contains the following topics:

Enabling Oracle Database Vault on UNIX Systems
Enabling Oracle Database Vault on Microsoft Windows Systems

Enabling Oracle Database Vault on UNIX Systems

Use the following steps to enable Oracle Database Vault on UNIX systems:

Turn off the software processes. Ensure that the environment variables, ORACLE_HOME, ORACLE_SID, and PATH are correctly set.

Stop the dbconsole process in case it is running. For both single-instance and Oracle RAC installations, use the following command:
```
emctl stop dbconsole
```

Shut down the database instance.

For single-instance installations:

sqlplus sys as sysoper
Enter password: password

SHUTDOWN NORMAL
EXIT

For Oracle RAC installations:

srvctl stop database -d db_name

At command prompt, run the following commands to turn on the Oracle Database Vault option:
```
cd $ORACLE_HOME/rdbms/lib
make -f ins_rdbms.mk dv_on ioracle
```
For Oracle RAC installations, run these commands on all nodes.
In SQL*Plus, start the database:

For single-instance database installations:
```
sqlplus sys as sysoper
Enter password: password

STARTUP
EXIT
```
For Oracle RAC installations, at a command prompt:
```
srvctl start database -d db_name
```

Enabling Oracle Database Vault on Microsoft Windows Systems

Follow these steps to enable Oracle Database Vault on Windows systems:

Stop the database service.

In the Control Panel, under Administrative Services, select the Services utility. Select the Standard tab, right-click the following services, and from the menu, select Stop:
- OracleServiceSID
- OracleHOMETNSListener
Under ORACLE_HOME\bin, name the backup of the oradvrelease_number.dll file to its original name.

For example, if you named it oradv11_backup.dll, then name it back to oradv11.dll.
Restart the database service.

In the Control Panel, under Administrative Services, select the Services utility. Select the Standard tab, right-click the following services, and from the menu, select Start:
- OracleServiceSID
- OracleHOMETNSListener
For Oracle RAC installations, repeat these steps for each node on which the database is installed.