MongoDB Authentication/Authorization

To find all posts about MongoDB, click on the MongoDB category at the bottom of this post to find all posts tagged with that keyword.

By default, MongoDB is wide-open. Everyone has access to read/write anything. You have to opt-in to use authentication and authorization. Here are some of my notes on how to do that.

First, run mongo.exe to get into the shell and do the following:

# Switch to the admin database
use admin
    
# Create an admin account
db.addUser( { user: "admin",
              pwd: "mongopass",
              roles: [ "userAdminAnyDatabase" ] } )

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

In the config file, set the following:

auth=true

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.csharpcode .lnum { color: #606060; }

Stop and restart the MongoDB instance. The MongoDB instance will now be running with security enabled. Connect again via the Mongo shell just by running “mongo.exe”. Once in, try to authenticate:

db.auth("admin", "mongopass")

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{
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color: black;
font-family: consolas, “Courier New”, courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
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.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
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.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
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That should return a “1”. From here, you can create other user accounts, as this admin account, by default doesn’t automatically have access to do much of anything else.

# Create the database
use TestDB
    
# Create the user with readWrite
 db.addUser( { user: "testdbuser",
               pwd: "mongopass",
               roles: [ "readWrite" ] } )
    
# Authenticate as that user
db.auth("testdbuser","mongopass")

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font-family: consolas, “Courier New”, courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
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.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
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.csharpcode .lnum { color: #606060; }

More on roles: http://docs.mongodb.org/manual/reference/privilege-documents/

Also, when connecting using the C# driver, use a syntax like this for the “connection string”, to connect with authentication:

mongodb://testdbuser:mongopass@localhost/TestDB

Posted in MongoDB, NoSQL, Uncategorized

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