Tunnelier is a fast, easy to use and robust SSH client that offers flexible TCP/IP tunneling support.

· One of the most advanced graphical SFTP clients;
· State-of-the-art terminal emulation with support for the bvterm, xterm, and vt100 protocols;
· Support for corporation-wide single sign-on using SSPI (GSSAPI) Kerberos 5 and NTLM user authentication, as well as Kerberos 5 host authentication;
· Support for RSA and DSA public key authentication with comprehensive user keypair management;
· Powerful SSH port forwarding capabilities, including dynamic forwarding through integrated SOCKS and HTTP CONNECT proxy;
· Powerful command-line parameters which make Tunnelier highly customizable and suitable for use in specific situations and controlled environments;
· An advanced, scriptable command-line SFTP client (sftpc);
· A scriptable command-line remote execution client (sexec) and a command-line terminal emulation client (stermc);
· An FTP-to-SFTP bridge allowing you to connect to an SFTP server using legacy FTP applications;
· WinSSHD remote administration features;
· Single-click Remote Desktop forwarding.

Graphical SFTP File Transfers
Tunnelier incorporates what we believe is one of the most advanced SFTP file transfer clients, with support for the following:
· Automatic resuming, text file awareness, recursive subdirectory transfers;
· Powerful, advanced transfer list management;
· High speed - up to 5 MB/s when connected to a WinSSHD server, network bandwidth and disk resources permitting;
· Fast responsiveness to user input even when in the middle of multiple file transfers.
· Tunnelier also incorporates an advanced, scriptable command-line SFTP client.
Terminal Access - Remote Console
Tunnelier provides integrated access to the SSH server's console, either via VT-100 and xterm protocols supported by most SSH servers on any platform, or via the enhanced bvterm protocol supported by WinSSHD:
· All terminal emulation is done in a regular Windows console, using standard Windows fonts, supporting standard settings for Windows consoles;
· UTF support with VT-100 and xterm, Unicode support with bvterm (full Unicode support on NT-series Windows platforms);
· Full color support with xterm and bvterm;
· Support for large screen buffers, all key combinations including Alt-keys and accurate console rendering with bvterm (fully accurate on NT-series Windows platforms).
· Tunnelier also incorporates a command line terminal emulation client, stermc, as well as a command-line remote execution client (sexec).
Single sign-on
That's right! When using Tunnelier to connect to a GSSAPI-enabled SSH server in the same or a trusted Windows domain, you can let Kerberos 5 (or on older platforms, NTLM) perform the server as well as user authentication for you, without you having to wiggle a toe! No manual host key verification; no management of user passwords and public keys. Just tell Tunnelier which SSH server in the domain to connect to, and if that server is WinSSHD version 4 or another server with compatible support for GSSAPI, the two programs will authenticate and establish a secure connection automatically.
Tunnelier as a Port Forwarding Client
Tunnelier is a powerful SSH2 port forwarding client with many features, including:
· Dynamic tunneling via integrated proxy supporting SOCKS4, SOCKS4A, SOCKS5 and HTTP CONNECT proxy tunneling protocols. Configure your applications to connect to target hosts through Tunnelier's proxy, and no manual tunneling rules need be configured.
· How to set up programs for dynamic tunneling: Firefox, IE; with these settings in Tunnelier.
· Port forwarding settings can be saved to and loaded from a profile. One can maintain multiple complex tunneling configurations without having to manually enter parameters before each session.
· Tunnelier minimizes its presence by displaying only a system tray icon when running in the background. If an error is encountered while the program is minimized, the icon reflects that.
· Server-side forwarding: with WinSSHD and Tunnelier, a server and multiple clients can be set up so that all port forwarding rules are configured centrally at the server, without requiring any client-side setting updates. The SSH clients only need to be configured once, and port forwarding rules can easily be changed when necessary.
· Command-line parameters are supported. Using command-line automation, a port forwarding session can be started from a link in the Startup menu without requiring any user interaction whatsoever. Help with the command-line parameters can be found in the Tunnelier log area when it is first started, or by executing 'Tunnelier /?' from a command prompt.
· After an SSH session is established, any external application can be launched automatically.
· If an SSH session is interrupted, Tunnelier can automatically reconnect to the server.
Highly customizable
Run 'tunnelier -?' for a list of command-line parameters providing flexibility to:
· Make Tunnelier load a profile and connect immediately on startup and exit on disconnect using the -profile, -loginOnStartup and -exitOnLogout parameters;
· Make Tunnelier hide portions of its user interface (main window, authentication messages, access to SSH features) using the -hide and -menu parameters;
· Run Tunnelier from removable media and prevent it from making any changes to the Windows registry - and yet use public key authentication and verify host keys using the -noRegistry, -keypairFile and -hostKeyFile parameters;
Portable
Portable Tunnelier distributions can run from a USB key, in the U3 and PortableApps formats.
Tunnelier is free for individual use, as well as for limited use inside organizations! To begin, simply download the installation executable. Check the Tunnelier license to see if you can use it free of charge or whether a right of use needs to be purchased for your environment.