This describes the setup of a host which runs the sphere stack.
This platform should run OK for a few spheres using a 2gb (2g ram/2 cpu/40g disk) digital ocean server.
sudo ufw allow ssh
sudo ufw allow http
sudo ufw allow https
sudo ufw allow 8883/tcp
sudo ufw allow 2376/tcp
sudo ufw enable
Note: 2376/tcp is used by docker-machine to access docker over ssl.
To see the status.
sudo ufw status
For more information: