Unable to get the latest Boot2Docker ISO release version on initial setup behind corporate proxy

[mohankrishna]

I installed DockerToolbox-1.11.2 on Mac ElCapitan. When i try to run the "Docker Quickstart Terminal" i get an error as below

Running pre-create checks...
(default) Unable to get the latest Boot2Docker ISO release version: Get https://api.github.com/repos/boot2docker/boot2docker/releases/latest: x509: certificate signed by unknown authority
Creating machine...
(default) Unable to get the latest Boot2Docker ISO release version: Get https://api.github.com/repos/boot2docker/boot2docker/releases/latest: x509: certificate signed by unknown authority.

But it seem to have created the VM.

When i run any docker command it ends up with a timeout error.

An error occurred trying to connect: Get https://192.168.99.100:2376/v1.23/containers/json: Gateway Timeout

But when i try to run "docker run" on docker-machine it gives the same error as the initial one.

docker@default:~$ docker run hello-world
Unable to find image 'hello-world:latest' locally
Pulling repository docker.io/library/hello-world
docker: Error while pulling image: Get https://index.docker.io/v1/repositories/library/hello-world/images: x509: certificate signed by unknown authority.
See 'docker run --help'.

I guess the issue is related to proxy certificates, tried searching for a solution to this issue but have not found any yet.

Will appreciate any help regarding this.