CTG - Login Tutorial

Overview
  [Supercomputing]
  [Project Development]
  [Project Design]

Login Procedure
  [ssh (Putty) ]
  [Tutorial]

Unix
  [Basic Commands]
  [Utilities]
  [Pico]
  [Cygwin]

C++
  [Background]
  [Tutorial]
  [Advanced Syntax]

Java
  [Background]
  [Tutorial - Unix]
  [Tutorial - PC]
  [Advanced Syntax]

Graphics
  [gnuplot]
  [Tutorial]

Extras
  [Cygwin-X11]
  [E-mail]
  [ftp]
  [HTML]
  [Resources]

Supercomputing Challenge
  [Home Page]
  [Technical Guide]

We will discuss accessing the Challenge machines via a PC running windows. This tutorial assumes you already have an active connection to the internet.

In order to access the Challenge machines you need a Secure SHell (ssh) program. One free ssh program for windows machines is called Putty. You, or your computer system manager, will need to install it from the Putty web site.

You will need to get the putty.zip file or the Windows-style installer from http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html that contains putty.exe and some other utilities.

To run this program you can click on PuTTY icon, whereever it was installed, or run the installer. When you start PuTTY, you will get a screen like:

As the windows shows, type in "mode.lanl.k12.nm.us" (no quotes) into the blank under Host Name and type in mode in the Saved Sessions box. Next click on X11 in the lower left and check Enable X11 forwarding

then click on Session on the top left and click Save. Next click Open. If all goes well you will get a screen that looks like this:

You have now reached the machine "mode". When mode prompts for a login, enter your challenge account login name. It should be similar to "ch099abc" (no quotes) where the "ch" stands for Challenge, the "099" will be replaced with your team number, and the "abc" are your initials.

Note: If we did not have your middle initial, we placed an "x" in that spot.

Now, you will be promted for your SuperComputing Challenge (SCC) password. This will initally be your Challenge registration password. You can change your mode password if you like.

To learn how to change your password, read the information on utilities under the unix category. If you've forgotten your password, contact .

Note: Your password is not "echoed" (displayed) to the screen when you type it in so nobody looking over your shoulder can steal it!

After successfully logging in you should see the message of the day (motd) appear on your screen, as well as other pertinent information. It should appear similar to below:

You are now ready to execute Unix commands, write Java programs, etc. on the machine "mode".

To learn more about the mode machine, go to the supercomputing page.

Supercomputing Challenge — Questions? e-mail: