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WebSocket over SSH tunnel - is it possible?

 
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Old 01-13-2015
Computer WebSocket over SSH tunnel - is it possible?
Hello,

I have a video streaming application that utilizes a WebSocket for the server <-> client communication. My goal is to make the video streaming service available over the internet in the cases where neither the server nor client have public IPs.

One way to do this is over a VPN connection, but I prefer not to use a VPN at all. That's why I decided to try and forward the communication over an SSH server via remote port forwarding.

However I am facing an issue - forwarding the server socket is pretty straight-forward, but I have no way to know in advance what the randomly allocated client port will be, so the traffic will flow only in the direction client -> SSH server -> streaming server.

When the SSH relay point receives the responses from the streaming server it does not automatically route them back to the client and the WebSocket handshake cannot be completed.

Do you think it is possible to overcome this issue or should I drop the WebSocket altogether and revert to a normal HTTP / TCP connection?

Thanks!
 
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LEARN ABOUT DEBIAN

ssh-askpass-fullscreen

SSH-ASKPASS-FULLSCREEN(1)				      General Commands Manual					 SSH-ASKPASS-FULLSCREEN(1)

NAME

       ssh-askpass-fullscreen - A simple replacement for ssh-askpass written with gtk2

SYNOPSIS

       ssh-askpass-fullscreen

DESCRIPTION

       This manual page was written for the Debian distribution because the original program does not have a manual page.

       gnome-ssh-askpass  is  a  GNOME-based passphrase dialog for use with OpenSSH. It is intended to be called by the ssh-add(1) program and not
       invoked directly.  It allows ssh-add(1) to obtain a passphrase from a user, even if not connected to a terminal (assuming that an X display
       is available).  This happens auto-matically in the case where ssh-add is invoked from one's ~/.xsession or as one of the GNOME startup pro-
       grams, for example.

       In order to be called automatically by ssh-add, ssh-askpass-fullscreen should be installed as /usr/bin/ssh-askpass

       ssh-askpass-fullscreen is a program that...

ENVIRONMENT VARIABLES

       The following environment variables are recognized:

       GNOME_SSH_ASKPASS_GRAB_SERVER
			    Causes gnome-ssh-askpass to grab the X server before asking for a passphrase.

       GNOME_SSH_ASKPASS_GRAB_POINTER
			    Causes gnome-ssh-askpass to grab the mouse pointer will be grabbed too.

       These  may have some benefit to security if you don't trust your X server. Keyboard is always grabbed.

       SEE ALSO
	      ssh-add(1), ssh-askpass(1).

AUTHOR

       This manual page was written by Marco Presi (Zufus) <zufus@debian.org>, for the Debian GNU/Linux system (but may be used by others) and	it
       is based on that for x11-ssh-askpass by Philip Hands and the one for gnome-ssh-askpass by Colin Watson <cjwatson@debian.org>

								   May 8 , 2004 					 SSH-ASKPASS-FULLSCREEN(1)