Docker can't pull image

[Monkeyzc]

I'm a new docker, when I execute download hello-world-nginx, there is a error say Error while pulling image: Get https://index.docker.io/v1/repositories/kitematic/hello-world-nginx/images: dial tcp 0.0.8.90:443: connect: invalid argument

[FrenchBen]

Are you using Docker Toolbox? It looks like you're behind a proxy, is that correct?

[Monkeyzc]

Yes, it's behind a proxy