http://www.pureftpd.org/
::snipped from their home page::
- A maximum concurrent connection from the same IP address can be
enforced to avoid bandwidth starvation and denial-of-service attacks.
I've personally used pure-ftpd for many many projects and I love it.
Hope this helps,
Jordan Michaels
Vivio Technologies
http://www.viviotech.net/
Dennis Powers wrote:
> Hi,
>
> We are attempting to create a file download system that will limit the
> user
> to two simultaneous file transfers. We have a project where we have a
> file
> browser web page in the web site that reads from a database and when the
> user wishes to download a file they click the icon and we direct them
> to our
> ftp site with a redirection to a link like so:
> ftp://ftp.oursite.com/filename.zip . The files are fairly large 6-25megs
> each so we didn't want to burden the CF engine sending them inline with
> <cfcontent>. We are using CF 5.x and Serv-U 4.x as the FTP server.
>
> We have bandwidth limiting on the FTP server so when a user opens multiple
> download sessions the transfer rates drop. We are trying to write
> either a
> server side (CF) or client side (_javascript_) script to detect that
> they are
> already downloading two files and when one of the files finishes the third
> file they queued will start.
>
> Within CF I can determine when a download starts but can't find a way to
> determine when it is actually finished. I was wondering of anyone
> knows of a
> way to get the file completion status from Serv-U maybe with a plugin or
> add-on utility, short of parsing the logs?
>
> Alternately being a _javascript_ novice I am unsure if a client slide
> solution
> can be written where the _javascript_ in the browser detects the two open
> download windows and prevents them downloading another until one of the
> windows is finished. It doesn't have to be foolproof to the advanced
> users
> like a server side solution would be. It just needs to be functional for
> most users.
>
> Any assistance is greatly appreciated.
>
> Best Regards,
>
> Dennis Powers
> UXB Internet- A Website Design and Hosting Company
> 690 Wolcott Road - P.O. Box 6028
> Wolcott, CT 06716 tel: (203)879-2844
> http://www.uxbinternet.com
> http://dennis.uxb.net
>
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