I'd like to block ALL incoming traffic from Amazon AWS IPs.
They publish a list of their IP addresses in json format here: http://docs.aws.amazon.com/general/latest/gr/aws-ip-ranges.html
I have a dedicated server running Ubuntu 14.04 LTS.
Is there a way to do this with iptables? Could the rules be grouped somehow so they could be replaced periodically without affecting non-related rules? Or perhaps there is some other, better way to approach this?