# Yum ```ruby Vagrant.configure("2") do |config| config.vm.box = 'some-centos-box' config.cache.enable :yum end ``` Used by CentOS guests, will get configured under guest's `/var/cache/yum`. It will also [make sure](lib/vagrant-cachier/bucket/yum.rb#L20) that `keepcache` is set to `1` on guest's `/etc/yum.conf`.