If the DDoS is from residential proxies and high volume it becomes a real problem to shut down.

Which cloud provider? Unless things have changed, Canonical runs their own servers by leasing racks in data centres. Since one of their main offerings is managed Openstack, they favor running things on their in-house openstack deployment instead of using a public cloud (AWS etc).

the real world (the place where ubuntu servers are hosted) does have borders, singing kumbaya won’t stop terrorists from attacking western infrastructure

also, “cross-border attack” is a direct quotation from canonical by ars technica, take it up with them

> The internet doesn't have borders.

The overwhelming majority of internet connected devices have an internet connection that's physically connected, for 99.9??% of the distance, with wires or fiber cables, to every other user in the world, with a very nearby wireless hop at the ends. If the cables weren't so fragile, you could pull on your wifi AP and they would see their wifi AP (or maybe nearby cell tower) move.

The tiny fraction of the rest is passed by shining RF transmitters to some distant receiver, separated by some physical distance, to some base station sitting on the ground within a border.