How to Update Existing Vagrant VM

config.ssh.insert_key = false

$ wget --no-check-certificate https://raw.github.com/mitchellh/vagrant/master/keys/vagrant.pub -O authorized_keys

$ chmod 600 authorized_keys
$ chmod 700 .ssh
$ chown -R vagrant:vagrant .ssh

$ sudo apt-get autoremove -y
$ sudo apt-get autoclean -y

OR

$ sudo yum clean all

$ sudo rm -f /etc/udev/rules.d/70-persistent-net.rules
$ sudo rm -rf /tmp/*
$ sudo rm -f /var/log/wtmp /var/log/btmp

$ sudo dd if=/dev/zero of=/EMPTY bs=1M
$ sudo rm -f /EMPTY

$ cat /dev/null > ~/.bash_history && history -c && exit

$ vagrant package --output <base_box>.box
$ vagrant box remove <base_box>
$ vagrant box add <base_box> <base_box>.box