Can't create backup mongodump with --db. Authentication failed

Question

When I create backup of all databases in MongoDB (version 3):

mongodump --username bacUser --password 12345

It\'s OK. But when I try to cre

Answer 1

work with this:

--authenticationDatabase admin

mongodump and mongorestore commands need the name of database where mongodb user's credentials are stored. (thanks @Zubair Alam)