i tried to create a dump of a mongodb database on remote server which is running centos,nginx,mongodb v4.0.18 using the following command..
mongodump --host localhost:27017 --authenticationDatabase admin --username <uname> --password <password> --db <db> --out <path to dump>
but im getting the following error
Failed: error connecting to db server: server returned error on SASL authentication step: Authentication failed.