Unusual firewall bypassing techniques, network and computer security.

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Active port forwarder is a software tool for secure port forwarding. It uses SSL to increase security of communication between a server and a client. Originally, it was developed to forward data point to point. However, the need for bypassing firewalls in order to connect to internally located computers influenced the further development of the project.

AF is dedicated for people, who don't have an external ip number and want to make some services available across the net.

Moreover, zlib is used to compress the transferred data.

Using one, permanent data/control channel with flow control / packet buffering provides good performance and reasonably small latency.

Running afserver does not require root priviledges, nor does it use threads or other processes.

Latest release available on version: 0.8.4; README, CHANGELOG
Download | md5sum: 4411785b05ec59e955152fe4e61705b1
Win32 Cygwin built AF version:

Index of projects

Paper : Exploitation of data streams authorized by a network access control system for arbitrary data transfers : tunneling and covert channels over the HTTP protocol.

Team member's sites:

GNU  GNU General Public License
 GNU Free Documentation License