Before you access your Unix account, you will have to get your Unix account! Go to Room 200 of I Building and use one of the Express Terminals to find out your account name (user ID). Be sure the account is for qcunix1, not qcvaxa. If there are any problems, go down the hall to the information desk for help.
At the present time, all the PCs in I-200 are configured for GUI mode, but only some of them (the AT&T brand PCs) operate with high-resolution video drivers that make the interface good.
Once you log into a PC you are given a menu of applications that you can run. Select Telnet to qcunix1 for command line access to your account, or Windows to bring up Microsoft Windows, from which you will be able to access your account in GUI mode.
login:prompt. Type in your user ID. Be sure to use the proper case (lower case) because upper and lower case letters are not interchangeable Unix. When prompted for your password, give your college ID number.
At this point you will be logged in, some intial commands will run
automatically, and the shell will issue a prompt for you to enter
commands. The prompt will be the string "
qcunix1> ". You
will be able to change the prompt if you want to, and in the examples we
give, we will use "
$ " to represent whatever prompt string you
decide to use.
Once dxterm starts running, you will be in exactly the
same situation as if you had logged in using Telnet. Some initial
commands will run automatically, and you will get your "
" command prompt. There is one major difference when you log in
this way, though: You can now run X Window applications on
qcunix1 and their windows will show up on your PC's Microsoft
Windows screen. The secret to all this is eXcursion, which is an X
Window System server that runs under Microsoft Windows.
For example, if you want to run two terminal sessions at the same time,
it's no problem. Just type "dxterm &" at your qcunix1 command
prompt and another window running another copy of dxterm will
show up on your screen. Use the mouse to click on the window you want
to work in. Also, if eXcursion is set up properly, you will be able to
Alt-<tab> to switch between dxterm windows.
(Experiment with the left and right
Alt keys: eXcursion
should let Microsoft Windows know when you press one of them, and let X
Window applications know when you press the other.)
Some other X Window applications you might want to try are "xlogo" and "nedit." You can use nedit to edit files as easily as you can with pico, and you can use the mouse to make editing even easier.
The telephone number to dial is 718-997-5042. (2400 baud). When you get the "Enter Desitination" prompt, type "qcunix1" and you will be able to log in as described above. Except for the low baud rate, your access to your account will be the same as if you had chosen "Telnet" from one of the PCs on campus.
The only way to protect your account is to use a password that is as secure as possible. You set your password with the passwd command. First, decide on the password you are going to use. It has to be easy for you to remember and to type, but it has to be hard for anybody else to guess. There are lots of rules about how not to choose a password: Don't use people's names or anything based on your User ID, don't use birthdays or other things based on dates, days of the week, etc. One popular form of password that is hard to guess combines two simple, but unrelated, words with a punctuation mark or number between them. Like everything else in Unix, your password is case-sensitive, and mixing upper and lower case letters can help make a password more secure.
When you enter the passwd command, it will prompt for your old password, and will have you enter the new password twice to make sure you got it right. If there is any problem with the password you chose, it will let you know. Note that the command is "passwd" rather than "password" -- Unix has traditionally used terse commands to save typing time.
^D(Control-D) at the command prompt.