Your application server comes with the mongo shell pre-installed.
Connecting with SSL:
Per HIPAA requirements, you should use a TLS (SSL) connection when connecting to your MongoDB server from your application server.
mongo --ssl --host <host-goes-here> \ --authenticationDatabase <database-goes-here> \ --sslCAFile /etc/ssl/hcb_ca.pem \ -u <username-goes-here> -p