[Starcluster] security groups

[Fabian Boes]

Hi,

just joined the mailing list after having started my first test
cluster on AWS. I have noticed in the AWS management console that the
number of security groups has increased by +2, however when listing
the security groups, I could only see the ones I had defined
previously.

What is the definition of @sc-* groups? Are only SSH connections
allowed to the master and nodes?

Kind regards,
Fabian