2. Getting Secure Shell (SSH)

This section should give you information on where to pick up different implementations of Secure Shell. Click here for the contents of this section.

2.1. Where is the official SSH distribution and mirror sites?

If you're looking for the official release of SSH, it is listed below.

2.1.1 Offical site

The central site for distributing ssh is at SSH Communication Security. The application is available at http://www.ssh.com/products/ssh/.

Official releases of SSH1 are PGP-signed, with the following key ID:
TypeBitsDateUser ID
DCB9AE0110241995/04/24Ssh distribution key <ylo@cs.hut.fi>
Key fingerprint = C8 90 C8 5A 08 F0 F5 FD 61 AF E6 FF CF D4 29 D9

Official releases of SSH2 are PGP-signed, with the following key ID:
TypeBits/KeyIDDateUser ID
pub2048/AFCA74591998/07/11Ssh 2 Distribution Key

2.1.2 Mirrors

Ssh is also available via anonymous ftp from the following sites:

Note that some mirrors may not have the most recent snapshots available.

2.2 How about getting other relatively free versions of SSH?

Here is a list of other implementations SSH clients and servers. The official distribution from SSH Communications Security is not included with these downloads.

2.2.1 UNIX

Niels M÷ller is developing a GPL'd C implementation of the ssh version 2 protocol. Pick up the latest release at http://www.lysator.liu.se/~nisse/archive/.

Most recently, OpenBSD has also created a free SSH implementation of SSH1. You can find it at http://www.openbsd.org/crypto.html#ssh. You can get the Linux port at http://violet.ibs.com.au/openssh/.They say that after someone installs OpenBSD, they immediately install SSH afterward. Very cool.

2.2.2 Java

There are a couple of different Java implementations of SSH.

2.2.3 Windows

For some reason, a lot of people have created SSH ports to Windows :-). This is the current list of Windows ports.

2.2.4 Macintosh

NiftyTelnet 1.1 SSH is Jonas Wallden's implementation of SSH1 for Macintosh. It is available at http://www.lysator.liu.se/~jonasw/freeware.html.

2.2.5 OpenVMS

There is David Jones' OpenVMS SSH1 server available at http://www.er6.eng.ohio-state.edu/~jonesd/ssh/. The OpenVMS SSH1 client is done by Christer Weinigel and Richard Levitte and is available at http://www.free.lp.se/fish/.

2.2.6 Handheld devices

The ISAAC group released a version of the SSH1 client for the Palm Pilot, Top Gun ssh 1.2. It's available at http://www.isaac.cs.berkeley.edu/pilot/.

Mov Software has released a port of SSH1 to WindowsCE called sshCE. You can register for beta testing at http://www.movsoftware.com/sshce.htm.

2.2.7 BeOS

The current BeOS R4 port of SSH1 for Intel and PowerPC platforms is available through Be directly at http://www.be.com/beware/Network/ssh.html.

2.2.8 OS/2

The most current port of the SSH1 client to OS/2 is available at ftp://hobbes.nmsu.edu/pub/os2/apps/internet/telnet/client/ssh-1.2.27-b1.zip, which runs on OS/2 Warp 3+.

2.3 How about getting commerically supported versions of SSH?

There are three current commercial releases of SSH. They are distributed by SSH Communication Security, F-Secure (formally Datafellows), and Van Dyke Software.

2.3.1 SSH Secure Shell

SSH Secure Shell is available from http://www.ssh.com/products/ssh. There are clients availabl for Windows and UNIX, and server available for UNIX as well. Please contact SSH Communications Security directly for more information.

2.3.2 Van Dyke Software SecureCRT

SecureCRT is available at http://www.vandyke.com/products/SecureCRT/. It runs on Windows platforms and supports the SSH1 and SSH2 protocol. Please contact Van Dyke directly for more information.

2.3.3 F-Secure Tunnel and Terminal

F-Secure Tunnel and Terminal is available at http://www.datafellows.com/products/cryptography/f-sshtt.htm. It runs on UNIX, Windows, and Macintosh. It implements the SSH2 protocol, and does have a command-line scp for Windows. Please contact Datafellows directly for more information.

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