Oracle Management Server
Use the following command sequence to stop and start the OMS
oemctl start oms oemctl status oms sysman/oem_temp oemctl stop oms sysman/oem_temp
Windows NT/2000 users can just stop and start the required services. The default OEM administrator is "sysman" with a password of "oem_temp".
NOTE: Use command oemctrl instead of oemctl for Oracle 8i and below.