Changing WebLogic domain name is possible with modifying certain files under your domain. This, I tested in a development environment and worked well for me.  In this exercise – I have renamed from base_domain to new_domain

Take complete backup of your domain Copy old domain name folder to new domain name

Search all files which contain base_domain in newly copied folder

Modify base_domain to new_domain in all above files. You can use sed to modify or manually you can do one by one. The choice is yours.

Ensure none of the files are having base_domain

Go to AdminServer folder and delete cache, data, tmp folder

Go to your New Domain and start Weblogic

That’s all! I started WebLogic managed server as well with no issues. Learn more about Oracle Weblogic Administration here.