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How to change the password in MongoDB for existing user?
To change the password in MongoDB for existing user, you can use changeUserPassword(). Following is the syntax
db.changeUserPassword("yourExistingUserName", "yourPassword");
Let us first switch the database to admin. Following is the syntax
> use admin
This will produce the following output
switched to db admin
Now, display users from the database. Following is the query
> db.getUsers();
This will produce the following output
[ { "_id" : "admin.John", "user" : "John", "db" : "admin", "roles" : [ { "role" : "userAdminAnyDatabase", "db" : "admin" } ], "mechanisms" : [ "SCRAM-SHA-1", "SCRAM-SHA-256" ] } ]
Following is the query to change the password for user “John”
> db.changeUserPassword("John", "123456");
Now the password has been changed with value “123456”.
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