if ( $self->{ldapTLS} == 1 ) {
        $ldap_master->start_tls(
            verify     => $self->{verify},
            clientcert => $self->{clientcert},
            clientkey  => $self->{clientkey},
            cafile     => $self->{cafile},
        );
    }

    $ldap_master->bind( $self->{masterDN}, password => $self->{masterPw}, );