Security groups are sets of IP filter rules. It can be assigned to Project instances and they are project specific. It describes networking access to the instance.
All projects have a default security group that is applied to any instance that has no other defined security group and it has default deny all policy for incoming traffic.
How to create a Security Group:
Go to Project > Compute > Access & Security
Click on “Create Security Group” -> Provide name and description.
Verify the new Security Group in the Red Hat OpenStack Dashboard.
Click on Manage Rules for default security group
Now let’s add rule into new security group which we created earlier.
Click on Add rule
Available rules are as below:
Following are screenshots of options available in Direction, Open Port and Remote List box in a dialogue box.
To add rule to allow HTTP access:
Verify the new HTTP rule added in Red Hat OpenStack Dashboard