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unencrypted and has therefore been withdrawn from all Phonetics and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