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

mongodump --collection coll_name --db DBname  -u UName -p *** 
          --authenticationDatabase  --host ip  
          --port portNo  --out foldName