Ik vond dit in de Cloud9-documentatie :
U kunt dan verbinding maken met de database met de volgende parameters:
Option Value Comment
Hostname $IP The same local IP as the application you run on Cloud9
Port 3306 The default MySQL port number
User $C9_USER Your Cloud9 user name
Password - No password since you can only access the DB from within the workspace
Database c9 The database name
Om uw IP-adres te achterhalen, opent u uw werkruimte en typt u dit in de bash-console:
curl http://curlmyip.com/