The secure shell protocol SSH provides secure, encrypted communications across networks to systems. You can use an SSH client to connect to and to transfer files securely to and from systems that have implemented appropriate server software. Use of SSH ensures that your username and password cannot be "sniffed" and captured by malicious people while you are connecting to the remote system (a very common way for hackers to find out usernames and passwords that they can use to facilitate misuse of computers).
You are strongly recommended to use an SSH client for connecting interactively and for file transfer whenever possible, especially when connecting from outside the University. Telnet and ftp access to many centrally-managed Unix systems was withdrawn on 6 January 2003. Telnet and ftp access from outside the University domain was withdrawn from these systems in September 2001.
If possible, you should install the client on the system you are using. The recommended and supported client is SSH secure client, available from ftp://ftp.bristol.ac.uk/pub/ibmpc/ssh/. Please read the README file for information about the licensing conditions and instructions on installing the software.
For deployment via Active Directory, use the copy at:
\\ads.bris.ac.uk\software\msis\Commercial SSH Client 3.2.5
For help installing or using SSH client, see Using SSH secure shell client on a PC to connect to a remote site (document ssh-i1) and Using SSH secure shell client on a PC to upload files to a web server (document ssh-i2).
If you administer any Unix systems that currently offer telnet or ftp services, we strongly recommend that you consider withdrawing them in favour of using SSH access.