Vagrant

export http_proxy="http://user:password@host:port"

vagrant plugin install vagrant-proxyconf

vi $HOME/.vagrant.d/Vagrantfile

Vagrant.configure("2") do |config|

  puts "proxyconf..."

  if Vagrant.has_plugin?("vagrant-proxyconf")

    puts "find proxyconf plugin !"

    if ENV["http_proxy"]

      puts "http_proxy: " + ENV["http_proxy"]

      config.proxy.http     = ENV["http_proxy"]

    end

    if ENV["https_proxy"]

      puts "https_proxy: " + ENV["https_proxy"]

      config.proxy.https    = ENV["https_proxy"]

    end

    if ENV["no_proxy"]

      config.proxy.no_proxy = ENV["no_proxy"]

    end

  end

end