I have set bindIp: 0.0.0.0 in /etc/mongod.conf and the mongodb server is installed in a virtual machine. When I ssh inside the virtual machine if I run the following command

sudo mongodump --uri="mongodb://username:password@127.0.0.1:27017/database" --out ./mongodump

It works, it is dumped in miliseconds

But when I run from my local machine the following command:

sudo mongodump --uri="mongodb://username:password@<PublicIP>:27017/database" --out ./mongodump

Nothing happens, the shell output returns nothing.

As well the database is small, it contains only one collection, and this collection has only one line of data.