Hi Kai, 

these are lines 133 till 147

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userlist_enable=NO
tcp_wrappers=YES" > "$ftpconfig";

        chkconfig vsftpd on;     
        service vsftpd restart >/dev/null 2>&1;
        service vsftpd status  >/dev/null 2>&1;
        if [ "$?" != "0" ]
        then
                echo "...Failed!";
                exit 1;
        else
                echo "...OK";
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Regards, Geert