How to solve command line problem dns server is not authoritative for this zone?

Question

ruby

Good evening, help me solve the problem, I wanted to start learning ruby, I started with the settings on windows, but I stalled at the moment of file matching, because I don’t enter in cmd, the message
“dns server is not authoritative for this zone” pops up

Answer 1

More than 3 years no one answered.

Answer 2

It looks like you have a Trojan instead of cmd.exe. At least once at the acquaintance such treated.