When you’re going to maintain your backup through Oracle Enterprise manager, it will ask Host Credentials username and Password.
Most of the Oracle users asked What is this one Either Database username or anything else?
I simply Replied This is Your server OS username and password.
Ok.But when i put the Server OS administrator username and password , It shows Validataion Error, why its happen and How to fix it?
If Windows Server,
Step 1: Go to Start —> Run
Step 2:type secpol.msc /s –> Local Security Policy window appear.
Step 3: here
Left Side panel ->Local Policies -> User Rights Assignment <– Enter
Right Side Panel -> Log on as a batch job –> here Double Click and Add Administrator User.
Now you can access your backup maintainence through Oracle Enterprise Manager.