346 Giltner Account Information
PA Dept. Computing Services
prepared by Aleksandar Donev for PHY480
This document is for students enrolled in Computational Physics courses
(PHY480, PHY102, PHY201, PHY305...). It gives some instructions for using
the classroom computers in Giltner Hall, room 346.
You will be given a login username and a temporary password.
Please login to your new account and change the password. To do this, login
with the temporary password, and once on the system, type yppasswd
to invoke the password changing program. Do not be confused - it will first
ask you for your existing password, then twice for your new
password. All new passwords must be at least 6 characters long. Choose
a password easy for you to remember, but difficult for others to guess. System Notes
These machines are all running RedHat 6.0 Linux with most common software
packages available. In particular, the GNU tools and the X-windows environment
are available. Upon login, you can choose from several environments, but
the default GNOME settings are just fine. Your home directories, files,
and desktops are shared accross the network via NIS, allowing for identical
environments on all of the machines in the room. Please let your TA know
about any problems that your are having. You will learn more as the course
You can access the Giltner 346 cluster from remote locations. For convenience
to students using public terminals, telnet is enabled on the server
gauss, so to connect to the system type (either at the prompt
for UNIX terminals, or under Start->Run for Windows):
and enter your login and password. When finished, please remember to
logout by typing exit. When running resource-consuming programs,
you can execute them on one of the ten working PC's in the cluster by typing:
ssh pc346g-xx [program]
where xx is the PC number, from 01 to 10, and the program
is an optional name of the program to run (with full path). You will be
asked a password and logged in. Again, type exit to return to
gauss. Please be considerate to other users and ask if you
are not sure about something.
However, if you have a computer that you use frequently to connect to
the cluster, please take time to download and install the Secure Shell.
The official site for this secure and supported by PA Computing Services
tool is http://www.onsight.com/ssh/faq/ssh-faq.html
Please use version 1.2 and not 2.x, to be compatible with gauss.
If you have access to a Linux machine and know how to use Linux, you
can download the SSH package from:
More likely though, you have a Windows machine. Windows comes with
its own fairly primitive telnet, but you can download a very nice
remote-login system for Windows at:
and then add to it an SSH extension to enable secure connections to
If you don't have the WinZip program to unpack the above zip files,
download an evaluation version for the purpose from:
In case of problems, talk to Aleksandar
Donev or PA Computing Services.