When creating first admin user on mongdb cluster getting error “couldn't add user: not authorized on admin to execute command”

Question

I am using mongoDB Cluster with version 3.4 in google cloud compute engine, actually past week my database got attacked by hackers that\'s why i thought about using authorizatio

Answer 1

You have to change your mongod.conf file to disable authorization before creating such admin user

security:
  authorization: disabled

After that, restart the mongod service and open mongodb shell to create the admin user

use admin
db.createUser({user:"RootAdmin",pwd:"blahblah",roles:["root"]})

Remember to enable authorization back on after creating user.