how to set mogodb in upstart service with authentication

Question

I have created a superuser tom in mongodb v2.6.11 with username & password and now i want to add this at ubunt

Answer 1

There is absolutely no need to fiddle with the startup files (which you really should not do unless you exactly know what you are doing) or install additional software for managing MongoDB.

I'd rather suggest to read MongoDB's extensive documentation of the config file options.

The only thing you need to do is to set

auth=true

for legacy config files or

security:
  authorization: enabled

for YAML config files in /etc/mongod.conf