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Special Forums IP Networking Proxy Server WebSocket over SSH tunnel - is it possible? Post 302931503 by Corona688 on Tuesday 13th of January 2015 11:51:06 AM
Old 01-13-2015
Quote:
Originally Posted by Vladislav
The problem is that the WebSocket client will always allocate a random port when initializing the communication and the SSH-relay point has no idea how to handle the responses coming from the server on that port.
An SSH tunnel might not be the right tool for the job then, a VPN sounds more suitable. The VPN itself will communicate on a predictable IP and port, but to the applications on either side, can generate traffic that appears to come from another subnet, as if you had two new network cards and a miles-long cable connecting you two directly. Hence 'virtual', 'private', and 'network'.
 

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libssh2_channel_direct_tcpip_ex(3)				  libssh2 manual				libssh2_channel_direct_tcpip_ex(3)

NAME
libssh2_channel_direct_tcpip_ex - Tunnel a TCP connection through an SSH session SYNOPSIS
#include <libssh2.h> LIBSSH2_CHANNEL * libssh2_channel_direct_tcpip_ex(LIBSSH2_SESSION *session, const char *host, int port, const char *shost, int sport); LIBSSH2_CHANNEL * libssh2_channel_direct_tcpip(LIBSSH2_SESSION *session, const char *host, int port); DESCRIPTION
session - Session instance as returned by libssh2_session_init_ex(3) host - Third party host to connect to using the SSH host as a proxy. port - Port on third party host to connect to. shost - Host to tell the SSH server the connection originated on. sport - Port to tell the SSH server the connection originated from. Tunnel a TCP/IP connection through the SSH transport via the remote host to a third party. Communication from the client to the SSH server remains encrypted, communication from the server to the 3rd party host travels in cleartext. RETURN VALUE
Pointer to a newly allocated LIBSSH2_CHANNEL instance, or NULL on errors. ERRORS
LIBSSH2_ERROR_ALLOC - An internal memory allocation call failed. SEE ALSO
libssh2_session_init_ex(3) libssh2 0.15 1 Jun 2007 libssh2_channel_direct_tcpip_ex(3)
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