Change Enterprise manager password for 11g

For the DB Control Release 11.2 and higher, you need to set the environment variable ORACLE_UNQNAME to the value of the DB_UNIQUE_NAME database parameter.


Steps :

1.Stop the DB Control
On Unix
$ emctl stop dbconsole

On Windows

Open a Command Window and type
**> emctl stop dbconsole

2.Check that the DB Control is stopped
 On Unix

 $ emctl status dbconsole
 

On Windows
Open a Command Window and type

 **>emctl status dbconsole

3.Connect to the database as a user with DBA privilege with SQL*Plus and execute:

SQL> alter user sysman identified by "password" ;

4.Check the new password

SQL> connect sysman/[@database_alias]

5.From the database directory $ORACLE_HOME/bin, execute:

On Unix

$ emctl setpasswd dbconsole

Provide the new SYSMAN password

On Windows
**>: emctl setpasswd dbconsoleProvide the new SYSMAN password

6.Restart the DB Control
On Unix
$ emctl start dbconsole

On Windows

Open a DOS Command Window and type
**>: emctl start dbconsole