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OpenVPN Tuna

OpenVPN with ocproxy/tunsocks/VPN-to-proxy/socks2tun support, as well as AWS VPC support.

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Usage

Preparation

To follow this readme, you'll need Nix installed. There should be nothing, however, to preclude you from just building it as a regular OpenVPN fork.

Also you don't need to clone the repository to try it out, if you have Nix installed. Instead you can just run it directly from github: e.g. nix run github:bendlas/openvpn-tuna#server

Replace .# with github:bendlas/openvpn-tuna# in the examples, in order to do so.

First get an OVPN file for your endpoint from the AWS Client VPN Self-Service Portal

Start the shim server

In a new terminal: Start the go server, that will push the browser response back to the connection script.

nix run .#server

Run one or more clients

Then you can use whatever client works for you. Tunsocks is tested.

Each client will be a full, but rootless OpenVPN instance, that runs the connection script on a proxy pipe, similar to an OpenConnect script tunnel.

tunsocks

nix run .#tunsocks -- /home/user/code/project/tmp/cvpn-endpoint-<vpn-id>.ovpn

then check your public ip from within VPN

curl --socks5-hostname 127.0.0.1:10080 -v https://icanhazip.com/

ocproxy

nix run .#ocproxy -- /home/user/code/project/tmp/cvpn-endpoint-<vpn-id>.ovpn

ocproxy/vpnns

nix run .#vpnns -- /home/user/code/project/tmp/cvpn-endpoint-<vpn-id>.ovpn

then

vpnns

to get into the isolated vpn network namespace.