CISCO ISE - How to change DOMAIN NAME

            TASK - Need to change the Domain for ISE  

Current Domain Name - dsldevice.lan

Changed Domain Name - bignetwork.com

STEP 1 - First check current domain name 

STEP 2 - During bootup if you want to change the domain name you will see below 

When you apply "ip domain bignetwork.com" , ISE will ask you with below Warning 

When you ask to YES then it will start stoping services 

Again it started the Services 

STEP 3- Validation 
now you can validate the domain has been changed