e-smith-ntp/root/etc/e-smith/db/configuration/migrate/30pool

{
    my $pool = $DB->get_prop('ntpd', 'NTPServer');
    return unless defined $pool;
    if ($pool eq 'pool.ntp.org')
    {
      $DB->set_prop('ntpd', 'NTPServer', 'smeserver.pool.ntp.org')
    }
}