An application protocol multiplexer
What is this?
In a nutshell, this application lets you run multiple kinds of applications on a single port. This is useful for, for instance, running an OpenVPN server and a TLS/HTTPS server on port 443, which in turn is useful for evading firewalls that block all other outbound ports.
Assuming you have a properly configured Go setup, get and compile the multiplexer with
go get github.com/Pandentia/protoplex/cmd/protoplex
and then run it with (for example, to run SSH and HTTPS)
protoplex --ssh your_ssh_host:22 --tls your_webserver:443
Protoplex is now running on port
8443 and ready to accept connections.
For more extensive configuration, please see the output of
A docker image may be used for ease of use and deployment.
The concepts for this multiplexer were as follows:
- Resource usage about on par with
- Easily extensible
- Highly dynamic
To this end, protoplex supports multiple matching methods for protocols:
- Bytestring comparison
- Regex matching
These can both be implemented for a protocol, with bytestrings taking priority (due to efficiency). In addition, protocols support matching limits, reducing the amount of protocols evaluated for a given handshake.
Currently supported protocols are:
- TLS (/ HTTPS)
- SOCKS4 / SOCKS5
Feel free to file an issue on the GitHub repository if you want a protocol to be supported. Please include steps to accurately reproduce your client setup.
Alternatively, you may submit a pull request.