Logging In

This page describes the mechanics of how you can log in to utstat, from various places. Contents:

  • Logging in and out at a local X-terminal
  • Logging in from home
  • Logging in from another computer

Logging in and out at a local X-terminal

If you are using an X-terminal that is directly connected to the utstat computers, you should be able log in through the special “login window” that should appear on an X-terminal where no one is logged in. Normally, you just type your login name and password, ending each by typing Enter or Return. The login window will then disappear, and several new windows will appear. You can get rid of these (and other) windows by clicking the left mouse button in the upper-left corner, and then clicking on “Close”. You can create a window in which you can type commands into our main computer, fisher, by holding down the right mouse button when you’re over the background, moving to “Hosts”, and then “This host”, and finally releasing the button.

You should log out by selecting the “Log out” option from the menu you get by pressing the right mouse button when pointing to a clear area of the screen. This should kill all the windows on your screen and then bring up the login window again.

Logging in from home, via a modem or internet connection

You can get to utstat from home in several ways. One way is by a connection through a commercial Internet service provider. A similar service is offered to U of T students, faculty, staff, and alumni by UTORdial. You can also use some modems that connect directly to utstat.

All these methods require that you have a home computer with a modem and suitable software. Two types of connection are possible:

  1. A “dumb terminal” connection, with a single stream of characters coming from the computer to you, and another stream going from you to the computer. This allows you to interact with a single instance of a Unix shell or other program.
  2. An Internet connection, in which your modem is used to send packets of data back and forth between your home computer and utstat and other computers. This connection can be used to do many things, such as running a web browser, running an X-Windows server, or transferring files with ftp. It can also be used to support a “dumb terminal” interface, using an ssh program.

To use a “dumb terminal” connection, you need only a modem and a terminal emulator program; a scripting facility may also be helpful. To establish an Internet connection, you will need software that implements TCP/IP networking over your modem, plus whatever network programs you want to use (eg, a web browser); a scripting facility will be helpful here as well. Most home computers will come with all of this software.

You may want to run an X-Windows server as well. This will allow you to work at home in much the same way as you could work on an X-terminal connected directly to utstat. Your home computer probably doesn’t come with X-windows software, unless you’re running Linux, so you’ll have to get it separately.

For more details on how to connect, see the following:

  • UTORdial: How to connect through the University’s UTORdial dial-in facility.
  • Utstat’s modems: How to connect through the utstat modem pool.
  • X servers for home use: How to install an X-Windows server on your home computer, for use when connecting through either UTORdial or utstat’s modems.

Logging in from another computer

You can connect to fisher from another Unix (including Linux or Mac OS X) computer that is on the Internet using ssh, as follows:

 

ssh -X -l your-utstat-account-name fisher.utstat.utoronto.ca

ssh can also be run from a Microsoft Windows or other computer, either via a remote X-Windows server, or by installing ssh software (set the Host Name to “fisher.utstat.toronto.edu”).
Alternatively, you can connect using your web browser, via a Java SSH program.

The related programs telnet and rlogin have been phased out, since these programs are insecure and thus vulnerable to computer hackers.

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