Secure SHell (SSH) to CHS.Claremont.Edu...

SSH is a more secure connection technology than "telnet", since it provides encrypted transactions between the host and client across potentially insecure networks. To help secure the privacy of your account, as well as to protect the systems from other compromises, users are encouraged to use only SSH (SSH1 or SSH2) to connect to your shell accounts on CHS; telnet should be avoided whenever possible.

For your convenience, should you be at a workstation that does not have a dedicated SSH application installed, we have built a Web-based interface to CHS using MindTerm--a Java applet. You may wish to use this service by pointing your browser to one of the following links:

(Note: You must have a valid account on CHS to use this MindTerm applet.)

Here are some further details and information about SSH, taken from our systems' news bulletins:


SSH_services_upgraded... (root) Fri Apr  6 13:29:07 2001

   We have upgraded the Secure SHell (SSH) services on CHS to ssh-2.4.0...

   If you are using SSH (which is highly recommended if you remotely connect),
   the new updates should be transparently similar to our older OpenSSH
   installation.  We now support ssh1 and ssh2 (both client and server) on
   CHS.  Read the man pages for more details...

     DESCRIPTION
        SSH2 (Secure Shell) is a program for logging into  a  remote
        machine  and  executing commands in a remote machine.  It is
        intended to replace rlogin  and  rsh,  and  provide  secure,
        encrypted communications between two untrusted hosts over an
        insecure network.   X11  connections  and  arbitrary  TCP/IP
        ports can also be forwarded over the secure channel.

   See http://www.ssh.com/ for further specifics of some commercial client
   programs available for various platforms which support Secure SHell version
   2.
                                           -- The Management



Secure_SHell_(SSH)_now_supported... (root) Sat Dec  1 13:04:45 2001
   The CHS Sun Enterprise servers have had Secure SHell (SSH) server software
   installed from the outset of their deployment back in 1999.  Unfortunately,
   US patent law has prohibited the use of freeware implementations of the SSH
   client-software because encryption key patents were held by RSA Data
   Security, Inc.

   On Sept. 6, 2000, these proprietary technologies were placed into the
   public domain.  It is now legal for US citizens to use SSH clients to
   access remote hosts without buying commercial packages (whose authors have
   been paying royalties to RSA.)  Use of an SSH client--as opposed to using a
   plain telnet client--can help insure more secure communications between
   client and host computers.  Additionally, we also support the even more
   secure SSH2 protocol which we encourage you to use.

   If you are using a Unix workstation--such as Linux or Macintosh OS X--to
   connect to CHS, you probably have SSH capabilities already available from
   your terminal.  Otherwise, you may want to download an appropriate copy of
   a SSH application suitable for your computer and use it when connecting to
   your account on the CHS Sun servers.

   Our CHS FTP server has four such SSH clients with which you may wish to
   experiment:
       "NiftyTelnet" for Macintosh -->
          ftp://chs.claremont.edu///pub/mac/niftytelnet-1.1-ssh-r3.hqx
       "MacSSH" with SSH2 support for Macintosh -->
          ftp://chs.claremont.edu///pub/mac/MacSSHPPC.sit
       "TerraTerm" for Win98/NT -->
          ftp://chs.claremont.edu///pub/wintel/terraterm+ssh/ttermp23.zip
   and "PuTTY" for Win95, 98, ME, NT and 2000 on Intel x86 -->
          ftp://chs.claremont.edu///pub/wintel/putty.exe

   If all you have is a Web browser, you might want to experiment with a new
   service we've built...  Point your browser to
         http://www.cusd.claremont.edu/www/computing/mindterm/
   for links to a SSH Java Applet for either Netscape or Explorer.

   At sometime in the near future, we will disable simple telnet services,
   and you are encouraged to plan ahead by starting to use SSH software for
   all your connections to the CHS servers.

   Your feedback is appreciated.
                                                   -- the Management
Last updated on 27 June 2006 at 16:21 PDT by rmuir_NOSPAM@chs.cusd.claremont.edu