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Starting and Stopping the Oracle Enterprise Manager Console

To access the Oracle Enterprise Manager Console from a client browser, the dbconsole process needs to be running on the server. The dbconsole process is automatically started after installation.

However, in the event of a system restart, you can start it manually at the command line or start it as a service in […]

Enterprise Manager is not able to connect to the Database instance

How do I resolve the “Enterprise Manager is not able to connect to the Database instance.” Error?

Try the following:

Bounce the OEM console using the following:

To drop old Database console

$ emca -deconfig dbcontrol db

To recreateDatabase console

$ emca -config dbcontrol db


$emca -config dbcontrol db -repos recreate


Reset SYS password in Oracle.

How can I recover my lost SYS password?

Sign-on to SQL*Plus without a password:

sqlplus /nologconnect / as sysdbaALTER USER sys IDENTIFIED BY “new_password”;