For the security of its servers, IRM has adopted the policy that users may connect to its servers only via SSH. When logging in via telnet, rlogin, and ftp the password is transmitted across the Internet unencrypted. SSH encrypts all traffic (including passwords) to effectively eliminate eavesdropping, connection hijacking, and other attacks. SSH is typically used to login to a remote machine and execute commands, but it also supports tunneling and can transfer files using the associated Secure File Transfer (SFTP) application.

Downloading SSH & SFTP

Here are some links to free SSH/SFTP software for your required platform.

Windows & Unix/Linux Workstations

• PuTTY (mainly used for SSH1 & SSH2)
  SSH Client | SFTP | FAQ
  
  
• SSH 3.2.9 for Windows
  Manuals | Setting up SFTP/SSH | Common Errors Codes
  
  
• SSH 3.2.9 For Unix/Linux
  
  
• WinSCP (GUI SFTP program)
  Download | FAQ

Macintosh Workstations

• MacSSH is an SSH2-only implementation
  Note that Mac OS X includes OpenSSH by default
     Download  |  FAQs  |  More Info
  
  
• Fugu: SFTP and SCP for Mac OS X
    Download  |  More Info

The Apple site has various links for Mac supported SFTP software. Among them there are:

• Cyberduck is an SFTP browser for Mac OS X.
    Download  |  How To  |  FAQ  |  More Info

If you want any more information on SSH and available downloads, please visit the OpenSSH site at http://www.openssh.com/.