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15. Etiquette
Here are some general rules to live by.
- Do not give out your password to anybody. The account is meant
for your use only. Failure to follow this policy will result in loss
of computing privileges.
- Do not use programs that send passwords out as clear
text. Examples are,
telnet, ftp, rlogin etc. It does
not matter if you are doing this on a machine other than one in our
department. If you compromize the security of an account in some other
machine or university, it compromizes our security as well. For, after
all, we're only a few packets away on the internet.
- Do not protect your home directory---it is an antisocial
practice. Besides, it is one of those things that can really irritate
your colleagues. If you need to protect things, create a subdirectory
and protect that. If you want to protect everything you do, work
underneath a protected directory. The default setup in our department
creates three directories for you:
private, public, and
public_html. Only the first is protected.
- Beware that anything you put in either the
public or
public_html directories is visible to everyone who has an
account on our system. In fact, what you put in public_html
is actually available to the world. So it is obviously not a good
place to put your credit card numbers or student grades.
- New users to our system often copy their hacks from their
previous systems over to their setup here. Don't. The system
administrator usually sets up our system in a sane manner and hacks
are rarely necessary. In particular, don't set an environment variable
called
MAIL blindly. These variables are not the same on all
machines.
- Our department machines and software are for research uses
only. If you have a class project, then the Leland machine environment
should be used.
- Do not leave your X terminal screen locked for more than 10
minutes during peak hours.
- Be aware of your disk space usage. To do this, you use the
command
du -k. Executing this command in your home directory will
give you a complete breakdown of disk space usage by each subdirectory
you have.
Another useful command is quota -v. This will tell you if you
have exceeded your quota among other things.
You risk your own communications if you exceed your quota. This is
because mail in our system is delivered to your home directory. If
there is no space, that mail will not be delivered!
- If your job did not print, please make sure the queue is clear
for others. It is anti-social to block other print jobs behind you.
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