CarraFix

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CarraFix is a powerful program which helps Carracho/Hotline/eDonkey, and other P2P program clients and servers to finally get decent download speed and their admin to achieve good experience (improved responsiveness) when browsing the web. CarraFix is a donateware (you can donate if you think this program worth it) created to fix network congestions, often caused by your servers or some P2P programs, on Mac OS X. CarraFix brings features called bandwidth throttling, traffic shaping and quality of service to Mac OS X. These features are efficient ways to improve your connection throughput in both download and upload.

CarraFix was written for Mac OS X in 2002, to improve the poor Internet browsing experience and slow download speeds caused by servers softwares on your machine or your network. And to accuratly control your uploads and downloads streams. It had then a tremendous success. 

Version 2.0 allow to manage bandwidth per IP or per flow! Version 2.1 brings even more features like displaying upload rate to each user and set a default priority for each login (Carracho/HL). I'm sure a lot of Carracho/Hotline/mlDonkey... server admins know how having a server can sometimes be painful : surfing the web or accessing your mail server is just painfully slow, and the only way to fix this slowness is to shut down the server!

CarraFix allows servers admins to:

• Browse the web and download at good speed while your server is heavily uploading.
• Receive at full rate what the users are uploading to your server, even when your server is uploading as fast as it can.

And CarraFix allows clients (the users):

• To dl faster while they are uploading at their maximum rate.
• To browse the Web and download faster while uploading at their maximum rate.

**CarraFix is considered deprecated since much better P2P applications have emerged since then (Bittorrent applications for example ) and include an upload regulator.**