(latest revision: 02/06/98) //////////////////////////////////////////////////////// Gaining Access to Workstations in the Computer Science Department Network //////////////////////////////////////////////////////// Use this document to look up ways to log in to a workstation. Quotation marks ("...") are used in this document for a variety of purposes. In several cases, it is done to indicate the exact characters you are supposed to type in order to give some particular command to the computer. Generally, you are NOT supposed to include any quotes in what you type. In a case where you ARE supposed to type quotes, the directions will say so explicitly. If you are supposed to press the Enter key after typing a command, the directions will use the word enter. For example, Enter "vt100" means type "vt100" (without the quotes) and then press the Enter key. The CS workstation network currently consists of seven computers housed in the main computer science lab, CS102. You will need an account and a password to use any of these machines: Sun 3/60s: barnard altair Sun Sparcs: reddog omicron sirius sparky NeXT: yokuts Initially, computer science majors receive a "network account" which allows them to log in to any of the Suns: barnard, altair, reddog, omicron, sirius, and sparky. The Suns are configured so that users have the same home directory and files, no matter which Sun they log in to. However, reddog, omicron, sirius, and sparky are the only machines on which one can run the "g++" compiler for C++. Also, altair's monitor is not working, so it is only usable via login over the network. There are two basic ways of gaining access to these computers: A: log in at the console (the keyboard and display attached to the computer itself), or B: log in through the network. Procedures for logging in through the network vary depending upon the computer you are using to gain access. Two very important rules are the same for all CS Department computers: 1. Please do NOT turn a computer itself on or (especially) off, without permission from someone in charge. 2. When beginning a computing session always switch the video monitor on if it is off, and always switch it off when you are finished. LOGGING IN AT THE CONSOLE: To use a console, go to the Computer Science Building and find an available Sun or NeXT workstation. If you need to turn on the video monitor, you will find the switch either at the rear of the monitor (on altair and barnard) or at the lower right corner of the monitor. If the login prompt is visible on the screen then proceed to enter your user (login) name and password. If not, ask someone to help. LOGGING IN TO A WORKSTATION FROM THE CONSOLE OF ANOTHER WORKSTATION: If you are logged in to one Unix workstation, you can open a session on a second workstation. For example, if you are currently logged in at the console of barnard, you might want to use reddog because it has the "g++" compiler for C++. You can enter "rlogin reddog". You will get a prompt for your password. You enter your password, and then you are "talking to reddog". When you logout, you will have to ener "logout" twice -- first to log out from reddog, and then to log out from barnard. When, for example, logged into reddog from barnard, it does not work if you try to start "openwin" or any other X-windows environment on the remote host reddog. Please don't try that. It will only lock up the screen on the remote computer and someone will have to be called to come and "unwedge" it. However, here is something that works nicely: after logging into barnard AT THE CONSOLE, start up sunview by entering "sunview" at barnard's shell prompt. Then open a cmdtool, and enter "rlogin reddog" at the prompt in the cmdtool. This gives you a "window into reddog" from your sunview graphical user interface on barnard. LOGGING IN THROUGH THE NETWORK: FROM THE AMIGA LAB, CS103: Icons in the "Workbench Screen" should be visible. Using the left mouse button, double click on the icon with the word "Network" under it. A window will appear with a variety of machine names. Double click again on the name of the machine you want to access. When a new screen appears, press the Enter key once or twice until you get the login prompt. FROM THE WINDOWS MACHINES IN THE MAIN CS LAB, CS102: Ask the system administrator, Julie Gorman, how to get a telnet session. If she is not available, ask a faculty member or student. FROM THE LIBRARY'S PUBLIC IBM LAB (L145) OR MAC LAB (L130): Ask the lab assistant in the red vest how you get a telnet connection to a CS Department computer such as reddog, etc. TELEPHONE ACCESS VIA MODEM: If you have access to a computer with a modem, you can dial into the campus network. Run your telecommunications program, and have it dial one of the following numbers: from Turlock 667-3130, 667-3794 & 664-7072 (28.8K); toll-free from Modesto 523-2173; toll-free from Merced 723-2810 & 723-2826; and toll-free from Stockton 473-1225 (28.8K). When the connection is made, press the Enter key. You will see a prompt from a terminal server (a special-purpose computer designed to give you a choice of connections to other computers). At this point it is a good idea to enter a string such as "ter ter vt100" This tells the terminal server that you are emulating a vt100 terminal. If you are using a terminal emulation different from vt100, then enter the correct terminal code instead of vt100 above. Next enter the name of the computer you want to connect to (for example, enter "reddog" or "sirius"). You will get a login prompt. Next you can proceed as if you were at a console. After you log out, enter "exit" at the prompt from the server before attempting to hang up. INTERNET ACCESS: Check with your Internet service provider. Basically, you just need to use telnet. When you make a request for a connection, you will have to refer to the campus computers using their fully qualified domain names. You do this by adding ".csustan.edu" to the simple hostname of the computer. For example, give the name "reddog.csustan.edu" instead of "reddog" when trying to access reddog through your Internet service provider. If you have any further questions on these topics, have a chat with me (Professor Sarraille), or ask at the computer center help desk. The help desk is in L-150, and the telephone number is 667-3687.