Learning OpenStack Networking - Third Edition

Creating security groups in the CLI

To create a security group, use the openstack security group create command as follows:

openstack security group create[--description <description>][--project <project>][--project-domain <project-domain>]<name> 

By default, security groups in Neutron are pre-populated with two egress rules that allow all outbound traffic over IPv4 and IPv6. Inbound traffic is not permitted by default.