Step 1 – Create Hosts Entry for Old Hostname
add entry to the file WINNT\system32\drivers\etc\hosts
Step 2 – Uninstall Enterprise Manager Console
emca -deconfig dbcontrol db -repos drop
Step 3 – Stop All Oracle Services
Step 4 – Update listener.ora and tnsnames.ora
with the new Hostname
Step 5 – Rename Host and Restart
DELETE THE OLD SERVICE FROM THE REGISTRY
Step 6 – Ensure Oracle Instance is running
Step 7 – Start windows to remove Enterprise Manager service
Step 8 – Reinstall Enterprise Manager Console
emca -config dbcontrol db -repos create
Step 9 – Validate Enterprise Manager Console Installation
http://hostname:1158/em
from: DBA-Village
