Free https tunnel software for linux

Brutus is an Exchange connector and development framework that offers access to all of MAPI and therefore to all versions of Microsoft Exchange from version 5.5 onwards.
Brutus project is a complete wrapping of all of MAPI into a (large) set of CORBA interfaces. It enables any groupware client to integrate seamlessly into any organization with large Exchange deployments on an equal footing with MS Outlook.
Being based on CORBA, it is platform independent, and works equally well on Linux, the BSDs, Windows, or wherever there is a CORBA implementation available.
Enhancements:
- Logging of failure cases was generally improved.
- SSLIOP support has been removed.
- SSLIOP is no longer needed as Lorica will add CORBA firewall support as well as an SSLIOP tunnel between Brutus Server and any client application.
- MAPI object property scrambling was added.
- This is a new feature that makes it possible for an administrator to content scramble specific users.

ssh tunnel on demand provides a script that creates an SSH tunnel on demand.

ssh tunnel on demand is a script that makes it possible for a user to create an SSH tunnel to a server and connect to it without needing an account on the box or any experience with SSH.

It was written for users that wanted to connect to Usermin at a remote site. Users enter information into a Web form and the server then connects an SSH tunnel to the remote Usermin server and redirects the browser through the tunnel.

u2nl provides a universal transparent HTTPS proxy tunnel.
u2nl (u-tunnel, universal tunnel) is a small application that listens on a TCP port and tunnels all connections transparently via an HTTPS proxy (using the CONNECT command) to the Internet.
Another host on the Internet is not needed. This only works if the HTTPS proxy allows these CONNECT connections.
It can be used to provide a Linux host with full connectivity when everything except the http proxy is blocked by a firewall.
Usage
I assume now, you have found out the ip address and port of the https proxy we use for tunneling. You have to make sure, that your Linux host forwards all connections to a port, u2nl is listening on. Do something like the following (replace OUTPUT by PREROUTING if the Linux computer is only a gateway):
# iptables -t nat -A OUTPUT -p tcp -d ! -j REDIRECT --to-port
Where is the ip address/hostname of the proxy host and is the port (you choose, something above 1024) u2nl will be listening on. Now start u2nl:
# u2nl
Where is the port of the https proxy (normally 8080 or 80) and is the (same as above) port u2nl will be listening on. The tunnel should work now.
Enhancements:
- The Makefile has been improved.

Gnome SSH Tunnel Manager (gSTM) provides a convenient front-end for the cumbersome ssh commandline.

Tunnel configurations are stored in a simple XML format with support for both local and remote port redirection.

Tunnels can be individually started and stopped from the simple main dialog with the option to add or delete a tunnel or modify its preferences.

An SSH tunnel with port redirection is usefull to access services behind a *nix firewall/router. For example, if you have a Terminal Server (remote desktop) and a MySQL server on your private LAN and want to access them securely from outside, you just open an ssh connection with two port redirections. You can then connect to your localhost which will be redirected over the encrypted tunnel, through the firewall/router, to the remote host.

TunnelVision creates an encrypted VirtualPrivateNetwork, or VPN, between two Tunnel Vision-capable sites on the Internet.
TunnelVision creates an encrypted VirtualPrivateNetwork?, or VPN, between two Tunnel Vision-capable sites on the Internet. Realistically, that means sites with a Linux server running TunnelVision or with a WorldvisionsWeaver? or NetIntegrator acting as their Internet gateway.
TunnelVision requires a Linux 2.2.x kernel or later for running properly. Were sorry about that, but we wanted to use the new features.
Enhancements:
- Also known as 0.70pre2.
- Lots of underlying library changes as WvStreams v2 was debugged.
- A new way of handling strings and lists makes things prettier.
- Several bug fixes resulting from the use of our new stresstest program.
- Connections regenerate themselves after the 10-minute idle timeout.
- All known bugs have been eliminated.

SOHT stands for Socket over HTTP Tunneling and allows you to tunnel socket connections through an HTTP proxy.
Restrictive firewalls often prohibit all outgoing trafic except for HTTP.
This application allows you to tunnel socket connections over the HTTP protocol.
This application consists of a server that serves as a proxy and a client which tunnels a socket connection over an HTTP connection to the server.
The current server is written in Java, and there are clients in Java and .NET.
Enhancements:
- Updated to fix an issue that prohibited connections to ports above 32767.

Zorp is a modular proxy suite written in C. Zorp provides you full control of encrypted connections. Being capable of thoroughly inspecting the traffic embedded into the secure channels, Zorp detects and stops possible attacks, viruses and other threats. This feature protects your network from the dangers lurking in webpages, infected e-mails and others places, whether they arrive in HTTPS, POP3S, IMAPS or tunneled SSH traffic. The individual features of SSH and SSL (port and X forwarding in SSH, encryption algorithms allowed in SSL, etc.) can be separately controlled, enabled, or disabled completely. Zorp can also control which sites can be contacted, verifying their certificates automatically, thus allowing users to connect only sites that can be trusted.
Zorp makes all traffic related to your servers fully auditable, without the need to change or modify any of your applications. With the power to transparently monitor and control the encrypted (SSH) channels used in server administration, all traffic (encrypted and other) to and from the servers can be reliably logged and audited by a device independent from the client and server applications used to access the servers. This improves full compliance to the criteria of the Sarbanes-Oxley Act as well.
Zorp provides you full control of encrypted connections. Being capable of thoroughly inspecting the traffic embedded into the secure channels, Zorp detects and stops possible attacks, viruses and other threats. This feature protects your network from the dangers lurking in webpages, infected e-mails and others places, whether they arrive in HTTPS, POP3S, IMAPS or tunneled SSH traffic. The individual features of SSH and SSL (port and X forwarding in SSH, encryption algorithms allowed in SSL, etc.) can be separately controlled, enabled, or disabled completely. Zorp can also control which sites can be contacted, verifying their certificates automatically, thus allowing users to connect only sites that can be trusted.
Enhancements:
- modules/ldap/ldap.c (ldap_server_to_client): Fixed a typo when sending the answer back to the client

HTTPTunnel is a simple client/server application for creating an HTTP tunnel between two machines, optionally via a Web proxy.
This is a small application for tunnelling an arbitrary TCP socket connection over HTTP. It can be used, for example, to tunnel traffic out from behind a restrictive firewall that only allows outgoing HTTP web connections.
The basic idea is that you run an instance of the HTTP Tunnel application locally in client mode, that then connects out to another instance that you run at the remote end of the tunnel in server mode.
You then connect to the local client end of the tunnel with the application whose traffic you wish to tunnel, and all communications are then wrapped in HTTP. The tunnel may also go via a HTTP proxy, either explicitly or transparently.
Enhancements:
- This release includes some major bugfixes and improvements in the tunneling error detection and retransmission code.
- It also introduces support for building and running under Cygwin.