I believe it's also a security measure.
Keep in mind AZs are different per account. My us-east-1b is not necc'ly your us-east-1b (as someone reminded me on twitter just now).
I believe it's also a security measure.
Keep in mind AZs are different per account. My us-east-1b is not necc'ly your us-east-1b (as someone reminded me on twitter just now).