Sysadmins told to update their software or risk killing the internet

Following the May 2016 test, in February a new key signing key (KSK) was created so people could add it to their software. That new key was then published in the DNS last month, and it will be used to sign the root zone for the first time on October 11, 2017 at 1600 UTC. At that point, anyone who doesn’t use it will find themselves effectively cut off from the internet.