Configuring Oracle Enterprise Manager 11g

Oracle Database - Enterprise Edition - version 11.2.0.4.0

export ORACLE_HOSTNAME=ora_vip
emctl status dbconsole

-- deconfig
emctl stop dbconsole
emca -deconfig dbcontrol db
emca -repos drop

-- config
emca -repos create
emca -config dbcontrol db

-- reconfig ports
emca -reconfig ports -DBCONTROL_HTTP_PORT 1158

-- unsecure http
emctl unsecure dbconsole

emctl start dbconsole