sub ipsec_restart {

    my ($self) = @_;
    my $cmd = 'sudo -s ipsec restart';
    my $restart = 0;

    $self->execute($cmd);

    foreach my $line ( @{ $self->get_stdout() } ) {
     if ( $line =~ /(Starting strongSwan.*IPsec$)/ ) {
          $restart = $1;
          last;
        }
    }

    return $restart;
}