![]() We could create a user in MongoDB with no roles by passing an empty array to the role field in the createUser() method. On entering the above create user query in the mongo shell, the user is created successfully as follows:Įxample 2: Create a user without a role in MongoDB in Ubuntu 20.04: The roles are specified with the “read” access to the config database. Inside the db.createUser function, we have a username as “Saeed_Raza1”, pwd is “Saeed123”. Then, we have the db.createUser function for creating the user in the given database. We must first construct a database in the MongoDB shell before we can create a user. TLS/SSL should be used for encryption of the password during transmission.Įxample 1: Create an administrative user in MongoDB in Ubuntu 20.04:Ĭonsider the following case to better understand this concept: Without any encryption, db.createUser() sends the passwords and other credentials to the MongoDB instance. ![]() Additionally, creating users in the database server is not permitted. The user admin has full control over all of the users. The admin user must be the initial user created in a MongoDB database.The following are some key considerations to create the users in MongoDB: Key points of the create user in MongoDB in Ubuntu 20.04: passwordDigestor: It’s used to see if the password has been digested by the server or the client.It is not required as it’s an optional field. mechanisms: It’s used to define the SCRM methods (or mechanisms for generating SCRM user credentials).authenticationRestrictions: The user’s authentication permission.When the role is defined in a different database, this method is typically employed. Alternatively, we can include a document with the role and database information. You can use pre-defined roles or create your own to use the db.createRole(role, writeConcern) method in this field. Just like giving an empty array, we can however create a user without a role. roles: A user’s permissions or access level.customData: Associative data from users.This field’s value can be a string or a passwordPrompt(). This field is not necessary if you use this technique on the external database to form a user whose details are stored externally. user: This is the name of the user that we want to create.
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