Not sure that the title is correct, but I am just wondering what others are doing about services such as Amazon web services.I used to be able to block or allow access to ports or sites by IP addresses/ranges. Now with so many people putting the servers in AWS I unfortunately can't block all AWS. BUT I don't want to open up a port or IP to ALL of AWS or other cloud servers. just wondering what others are doing when blocking or approving by specific IP isn't an option.
If I need to give some more info, let me know.