add user to mongo db

Start the shell and add an administrative user for the server.

$ ./mongo
use admin
db.addUser("mongoadmin", "anadminpassword")

Note: On my system, typing ./mongo doesn’t work, but plain mongo does.
Authenticate, still in the shell.

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db.auth("mongoadmin", "anadminpassword")
Configure a specific user for another database.

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2
use projectx
db.addUser("joe", "passwordForJoe")
Exit the MongoDB shell.

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exit
Edit the mongodb.conf file to enable authentication.

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sudo nano /etc/mongodb.conf

Uncomment this line.

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auth=true
Restart MongoDB

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sudo /etc/init.d/mongodb restart