12.04 - Confusion installing mongodb manually because of sitting behind a proxy

I am forced to install mongodb manually on an Ubuntu server because the machine sits behind a proxy and there is no way to temporary open port 11371 for key exchange to happen.
I am following this official mongoDB tutorial.

So I downloaded the tgz and extracted it in /usr/local/bin/mongodb. Where I got confused is when assigning the ownership of the /data/db to the user mongo.

• So who creates the user mongo?



• How to get control-scripts working?