it's more than that. i cannot get to my (presumably clean, running linux, carefully maintained) home machine situated in chile, connecting from the uk.
No-ip is operational, but no longer handles the 22 domains Microsoft took over. I use no-ip's DNS for a domain name that's registered somewhere else, and it's unaffected. From what I read somewhere else, the reason legitimate domain names are being affected is because Microsoft's servers can't handle the load.