first of all check enterprise manager status :
emctl status dbconsole
that told Oracle Enterprise Manager 10g is running.
after that i checked log files under $ORACLE_HOME\hostname.domainname_dbname\sysman\log
and found the following error
[SystemThreadGroup-8] ERROR app.SessionObjectManager sessionDestroyed.128 – java.sql.SQLException: ORA-28000: the account is locked
now Solution is simple:
sqlplus / as sysdba SQL*Plus: Release 10.2.0.4.0 - Production on Thu Oct 10 09:59:32 2013 Copyright (c) 1982, 2007, Oracle. All Rights Reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> select account_status from dba_users where username='SYSMAN'; ACCOUNT_STATUS -------------------------------- LOCKED(TIMED) SQL> alter user sysman account unlock; User altered.
after that run browser and enjoy with enterprise manager.
if that don’t help then make next steps:
SQL> alter user sysman account unlock; SQL> alter user sysman identified by passwd; emctl setpasswd dbconsole
and this must helps.