Cypress CSC-1200T Guia do Utilizador descarregar pdf (Página 14)

14 Cray T3E User’s Guide

because it uses a secure way to authenticate oneself to the host machine.

If you are using an X terminal or an equivalent (a workstation or a mi-

crocomputer with software supporting the X Window System), you can

establish an X Window System connection to the Cray T3E directly.

An easy way to use X Window System connection to the T3E is an ssh

connection running in local xterm. To establish an X Window System

connection to the T3E with environment settings correct, type:

localhost% xterm -e ssh t3e.csc.fi

Using rlogin or telnet connections, the procedure diﬀers somewhat

from ssh. Once logged in, the appropriate value of the DISPLAY envi-

ronment variable has to be set, if any X applications are to be run:

t3e% setenv DISPLAY your_x_terminal:0.0

Sometimes the Cray T3E may not recognize the string your_x_terminal

and you have to give the numerical Internet address instead:

t3e% setenv DISPLAY 128.256.512.64:0.0

If the Internet address is not known, it can be found by the following

command:

t3e% nslookup your_x_terminal

When a connection has been established to the Cray T3E using telnet,

you have to enter your user id and password. A typical telnet session

starts as follows:

Trying 128.214.248.31...

Connected to t3e.csc.fi.

Escape character is ’^]’.

Cray UNICOS/mk (t3e) (ttyp007)

Password: jameS5#e (the password does NOT show up)

t3e%

After displaying the prompt (t3e%), the Cray T3E is ready to execute

your commands.

2.2 Files

Your home directory ($HOME) is located on the disk server. Therefore,

your ﬁles are shared between the T3E and other computer systems at

CSC.

However, for performance reasons it is highly recommended to copy

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Cypress CSC-1200T Guia do Utilizador Página 14