Am I trying to connect to a TLS-enabled daemon without TLS?

Question

I\'m trying to learn about Docker, but I keep getting cryptic (to me) error messages.

Possibly the simplest example of this is trying to print the version of Docker

Answer 1

I had the same problem. A simple service docker restart solved the problem.

Answer 2

I was getting the same error on MacOS with sudo and without it.

I have solved it with:

boot2docker start
$(boot2docker shellinit)

P.S.: Thanks to Alan. I found out that this approach is recommended in their official documentation.

P.S.2: Sometimes boot2docker init can be required before running two commands (thank you Aaron).