Using SSH instead of Telnet for Logging in

The telnet program available under windows for logging in, previously  to Unix systems such as  holtz.phon.ucl.ac.uk and synth.phon.ucl.ac.uk in Department of Phonetics & Linguistics, is considered insecure as it passes all information across the Internet unencrypted and has therefore been withdrawn from all Phonetics and Linguistics Unix systems. You must use an alternative ssh client to connect to these systems

Alternative programs for Windows and Apple Macs etc, known as ssh clients, encrypt all data between a PC and the system it remotely logs into. These can be downloaded to a PC from websites and used as a replacement for telnet.

The recommended ssh client telnet replacement for Windows, named Putty can be downloaded from:-
http://the.earth.li/~sgtatham/putty/latest/x86/putty.exe

Save this to your Windows desktop then double click on the  putty icon.
On the Putty Configuration menu which appears:-
Click on ssh sothat 22 appears in the window labelled "port"
In the Host Name window enter the name of the computer you want to log in to such as bell.phon.ucl.ac.uk.
In the Saved Sessions window enter an identifier for this computer such as bell .
Click save. The name bell should appear in the window below this.

Now, whenever you want to connect to bell using ssh, double click on the putty icon on the Windows desktop then double click on  bell  in the window which appears. This should give the bell login prompt.

On the first connection from a PC it will ask if you trust the computer you are connecting to is really the one you want. It you accept then you will not be prompted again from this PC unless the encryption key is changed on the server.

   For more information including ssh clients for Apple Macs see www.openssh.org/windows.html

Departmental Computing Information