git config --global http.proxy $http_proxy
git config --global https.proxy $https_proxy
ref: http://stackoverflow.com/questions/20370294/could-not-resolve-host-github-com-error-while-cloning-remote-repository-in-git
git config --global http.proxy $http_proxy
git config --global https.proxy $https_proxy
ref: http://stackoverflow.com/questions/20370294/could-not-resolve-host-github-com-error-while-cloning-remote-repository-in-git