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mongodb - Cannot authenticate into mongo, "auth fails"

I've created an admin user for mongo using these directions:

http://docs.mongodb.org/manual/tutorial/add-user-administrator/

From the mongo client it looks like I can authenticate:

> use admin
switched to db admin
> db.auth('admin','SECRETPASSWORD');
1
>

But I can't connect any other way. For example:

mongo -u admin -p SECRETPASSWORD

gives the error:

JavaScript execution failed: Error: 18 { code: 18, ok: 0.0, errmsg: "auth fails" } at src/mongo/shell/db.js:L228

I have auth = true in etc/mongod.conf.

What am I missing?

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Authentication is managed at a database level. When you try to connect to the system using a database, mongo actually checks for the credentials you provide in the collection <database>.system.users. So, basically when you are trying to connect to "test", it looks for the credentials in test.system.users and returns an error because it cannot find them (as they are stored in admin.system.users). Having the right to read and write from all db doesn't mean you can directly connect to them.

You have to connect to the database holding the credentials first. Try:

mongo admin -u admin -p SECRETPASSWORD

For more info, check this http://docs.mongodb.org/manual/reference/privilege-documents/


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