How do I...

• Install ESPRESSO on my own machine?
• Setup ssh so that I can remote login without a password?
• Install StarOffice (e.g. to edit SpreadSheets, Presentations, and Word Processing Docs) on the Suns? Detailed instructions are here
• Notes from 10/08/2004 Pizza Talk
  • Dr. Nickels : Intro to CDE
  • Dr. Giolma : Intro to GNOME
  • Dr. Nickels: Get started with UNIX (shells and such)
  • Dr. Giolma: Available Software Packages
• Get started with the LaTeX document processing system (A collection of helpful links)
• [JPG Page] Install Ghostview (A PostScript file previewer) on my own computer?
• Run SPICE3 on the Linux Workstations?
• Have email forwarded elsewhwere?
• Display a program (e.g. matlab) on a machine other than the one I'm sitting at?

---

Install ESPRESSO on my own machine?

1. I have a statically-linked binary for linux here. If you download it and make it executable ( chmod +x ./espresso), it should work. No warranty, though!

---

Setup ssh so that I can remote login without a password?

1. On the machine from which you wish to log in (we'll call it "source") generate a key, if you don't have one
• In a terminal window on "source", type ssh-keygen -t dsa
• This will put your key in $HOME/.ssh/id_dsa and $HOME/.ssh/id_dsa
• The file $HOME/.ssh/id_dsa.pub is just text (look at it!)
2. add the new key to the authorized_keys2
list on the machine to which you wish to log in (we'll call it "target".)
• Use a text editor on "target" and cut/paste (be sure not to have any extra spaces or returns in the file), or
• In a terminal window on "source", type scp .ssh/id_dsa.pub target:.ssh/authorized_keys2 (it'll ask for a password)
3. Now, you can just type ssh target to log in to the target machine.

---

E-mail forwarding

• ALTERNATIVE: We also run a POP3 server on rex.engr.trinity.edu, so you can configure some email clients (the program that you run on your machine) to just grab it from there instead of forwarding.
• WARNING! If you create a loop (account A forwards to B, which forwards to A, ...) you will lose email and possibly create problems on both systems.
• To forward from the exchange server to another server (for example, the engineering server):

You have to call or email the helpdesk (helpdesk@trinity.edu, x7409). Microsoft (or ITS?) doesn't allow users to do this: maybe it'll be in the next version :)
• To forward from your engineering account to your exchange account, or any other account:

Edit a text file called ".forward" (without the quotes) in your home directory. This file should contain one line, the email address to which you wish your email sent.

---

Display a program (e.g. matlab) on a machine other than the one I'm sitting at?

First, we'll define some terms. The server is the machine at which you're sitting. The client is the machine that you are running the program on.
• MAC client
• Ensure that X11 is installed. Then, just follow the UNIX instructions below.
• Windows-Based client
• UNIX-Based Server
  There is a commercial program called vmware that will facilitate this. The academic price is quite reasonable for the power. You must have access to a PC that the programs will actually run on.
• Windows-Based Server
  Not possible, as far as I know, with the software available on campus.
• UNIX-Based client (HPUX, Linux, Solaris)
• UNIX-Based server

This one is pretty easy. We'll pretend that I'm in front of my linux machine "penny" and I want to run matlab from "rex".
1. On penny, I type: xhost + rex
2. From penny, I telnet or rlogin to rex (e.g. telnet rex)
3. On rex, I type: setenv DISPLAY penny.engr.trinity.edu:0
4. On rex, I run the program: matlab
The graphical output should show up on my screen on penny.
• Windows-Based server

This one is a tad more interesting. You need a program that understands the X-windows protocol. One such program is called eXceed, put out by Hummingbird. I'll assume that you have it, and it's set up. (If anyone has directions on how to do this, let me know.) I'll again pretend that I'm sitting in front of my Windows-based PC, ENGR05.
1. In exceed, allow rex access to the display. I believe that by default it allows access to everybody in the world, so this is easy.
2. From ENGR05, telnet to rex (StartBar->Run, then type "telnet rex.engr.trinity.edu")
3. On rex, I type: setenv DISPLAY penny.engr.trinity.edu:0
4. On rex, I run the program: matlab
The graphical output should show up in my eXceed window on ENGR05.

If anyone has some recommendations for other PC X servers, I'd be happy to share them here.




---

Last Update: 01/04/07

Directory information about the Author: knickels@engr.trinity.edu