How do I increase the RAM and set up host-only networking in Vagrant?

Question

I would like to increase the RAM to at least 1 GB and I would like to configure “Host-Only” networking to use \"199.188.44.20\".

This is my Vagrantfile:

Answer 1

Since Vagrant 1.1 customize option is getting VirtualBox-specific.

The modern way to do it is:

config.vm.provider :virtualbox do |vb|
  vb.customize ["modifyvm", :id, "--memory", "256"]
end