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HOWTO build your own open source Dropbox clone | fak3r

http://fak3r.com/2009/09/14/howto-build-your-own-open-source-dropbox-clone UPDATE #4 It’s 2012, and this project is still alive, although I haven’t worked on lipsync as much as I should. I want to, and have new ideas to implement and try out in the next few months. The two way sharing is a bit hacky, and I don’t like it, the installer creates a cronjob : that checks for server changes to sync back every minute - and it tries to avoid conflicts by not running if a sync the other way is happening . Yes, if you’re using 2 computers at once it could get confused, but so far, it’s pretty good - but something I want to improve.
PDXLAN

L7-filter is a classifier for Linux's Netfilter that identifies packets based on application layer data. It can classify packets as Kazaa, HTTP , Jabber, Citrix, Bittorrent, FTP , Gnucleus, eDonkey2000, etc., regardless of port. It complements existing classifiers that match on IP address, port numbers and so on. All pages on this site are accessible through links right here!

Application Layer Packet Classifier for Linux

http://l7-filter.sourceforge.net/
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. It reduces bandwidth and improves response times by caching and reusing frequently-requested web pages. Squid has extensive access controls and makes a great server accelerator. It runs on most available operating systems, including Windows and is licensed under the GNU GPL. http://www.squid-cache.org/

squid : Optimising Web Delivery

What is Snort? Snort® is an open source network intrusion prevention and detection system (IDS/IPS) developed by Sourcefire . Combining the benefits of signature, protocol, and anomaly-based inspection, Snort is the most widely deployed IDS/IPS technology worldwide. With millions of downloads and nearly 400,000 registered users, Snort has become the de facto standard for IPS. http://www.snort.org/

Snort :: Home Page

Ophcrack

What is ophcrack? Ophcrack is a free Windows password cracker based on rainbow tables. It is a very efficient implementation of rainbow tables done by the inventors of the method. http://ophcrack.sourceforge.net/