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Note: the latest version of SD, is now at version 4.0.3 which is a major upgrade over the 3 series. SD4 now includes a full featured FTP client, encryption, and lots more. Feel free to check it out. We hope you’ll like it as much as we do.

wont to know if there are security problem

Thanks for taking the time to provide such thorough feedback ;)

Could I add one more request to the ‘future functionality’ that I’d meant to put into the article?

I use lots of machines and what would be really great is if I could run SD3 on a server and have individual machines pass their requests through that server. That way, I could still get maximum throughput and control even if I was trying to download through multiple machines.

Since SD3 includes the file sharing, you could have it transfer the file over to the local SD3 on the clients.

Just a thought ;)

MC

Thank you for your feedback; we appreciate the time and interest you took in reviewing Speed Download 3.

There are a few things noted though that aren’t quite accurate and I will take the liberty of clarifying. The fact that you overlooked these things serves as a hint to us to better document them, and we will.

1) Segmented Downloading (multiple connections).

In theory, the way you describe multiple connections working is correct. However, with Speed Download 3, we have developed and implemented a unique mechanism that greatly enhances how SD 3 works in that regards. The process is called incremental downloading. When you download a file, Speed Download 3 will no longer simply open X number of connections at once to get the file. Rather it will start off with only 1 connection and check to see if the remote server has the ability to support more connections. If so, then SD will open another connection and so forth until the file is downloaded completely. This mechanism ensures optimal performance in terms of Speed but also in terms of perfect harmony with the remote server. Mind you, as you correctly point out, most servers online today have so much bandwidth that even without incremental downloading, SD will pose no problems for them. Regardless, in our pursuit to fine tune the process, incremental downloading in Speed Download was developed and put to work. We have received great feedback from many users including Network administrators that have seen much better compatibility between SD 3 and their servers.

2) File Sharing.

Your concerns about security are well respected but I can assure that we have thought of this and that by default, the file sharing mechanism in SD 3 poses no risk. By default, the file sharing feature is on in SD 3, however, NO ONE can access anything if you don’t go into the file sharing preferences and set which user has the right to do so. By default, no users have the ability to view, download, or upload to any other SD 3 machine. You have to create authorized users and give them permissions to connect to your SD3 machine first. In addition, the port used for file sharing is controlled by the user. We set port 2550 by default, but you can change that port to anything you like. Hence, one cannot take for granted that port 2550 will always be available. In designing the file sharing feature, we took into account a lot of factors including the security factor and flexibility factor. You can customize SD3 file sharing in many ways and all transfers are auto-resuming; something that most users won’t do without.

Our target market for the file sharing is any Mac OS X user that would like to have a centralized utility for anything and everything that has to do with fast, reliable downloading. Our users include graphic designers, network administrators, and more that use SD as a powerful, reliable, and affordable tool to distribute updates, software, etc to their users or peers, whether locally or remotely. Since SD is already the users default download manager, there is no need to install any other file sharing tools or open up any further ports resulting in even tighter security.

Of course, you can always go into the Speed Download preferences and turn it off. However, from a security perspective there should be no concerns while using SD’s file sharing.

Your feedback regarding improvements and features that you would like to see in future versions of Speed Download have been noted.

Again, on behalf of everyone at Yazsoft, I thank you once again for a great review. We happy to read that Speed Download 3 serves you well and we hope it does the same for all your users.

If you have any other comments, questions, please feel free to email me at any time at info@yazsoft.com

Kind regards,

Mark Forrester

The Speed Download Team
–
The fastest and most advanced download manager for Mac OS X

http://www.yazsoft.com
info@yazsoft.com