Don't require password for vagrant commands

sudoers

Type: sudo visudo

Add the following to the end of the file:

# Set these vagrant commands so that they don't require entering a password.
Cmnd_Alias VAGRANT_HOSTS_ADD = /bin/sh -c echo "*" >> /etc/hosts
Cmnd_Alias VAGRANT_HOSTS_REMOVE = /usr/bin/sed -i -e /*/ d /etc/hosts
Cmnd_Alias VAGRANT_EXPORTS_ADD = /usr/bin/tee -a /etc/exports
Cmnd_Alias VAGRANT_EXPORTS_REMOVE = /usr/bin/sed -E -e /*/ d -ibak /etc/exports
Cmnd_Alias VAGRANT_NFSD = /sbin/nfsd restart
%admin ALL=(root) NOPASSWD: VAGRANT_EXPORTS_ADD, VAGRANT_NFSD, VAGRANT_EXPORTS_REMOVE, VAGRANT_HOSTS_ADD, VAGRANT_HOSTS_REMOVE