Learning OpenStack Networking - Third Edition

Deleting security group rules in the CLI

To delete a security group rule, use the openstack security group rule delete command and specify the ID or name of the security group rule:

openstack security group rule delete <group> [<group> ...] 

To delete a security group named MySampleSecGrpRule80, you can enter the following command:

openstack security group rule delete MySampleSecGrpRule80

Multiple security groups can also be deleted simultaneously, like so:

openstack security group delete MySampleSecGrpRuleTcp80 MySampleSecGrpRuleUDP123 

While it is possible to delete the rules within the default security group, it is not possible to delete the group itself.