When restarting a server running Redhat, any changes made to the pam_vas PAM module, in /etc/pam.d/system-auth, are lost. For example, if it is not desirable for home directories to be created for new VAS users upon login, one must remove the create_homedir argument from the pam_vas module. As this is a default argument, it will be restored after a reboot of the Redhat system.