Comment 4 for bug 1224576

I think it is no a good idea to remove a validation completely and some validation is required. We need to take care several cases. For example, does security group name with control characters/non-printable characters?

Regarding nova security group names, you need to investigate nova-network security group implementations. nova security group implementation adopts driver mechanism and there are two drivers at now (nova and neutron). Have you checked with both drivers? Horizon supports both drivers. Thus you need to take care both when relaxing the restrictions.

Of course it is a good direction to change the validation logic to more useful one.
Thanks for your work.