Give your instance a name and a description, and click the Create This Image button. Your instance will be rebooted as part of the image creation process, so don’t be alarmed when you lose touch with it. The time that the image creation process takes is proportional to the size of your instance’s root file system. The instance’s state will be displ

Instances within a single security group can communicate freely with each other. Therefore, it would be imprudent to use, for example, a single ssh_access group to allow SSH access to instances in more than one tier of the previous example.