GCC 12n ネットワークガイド
3
If you decide to use a computer as a print server, you may consider also using it as a fax
server if your software allows you to do this. Fax servers take the place of a fax machine;
they are left on continuously, and users have a password-protected area to receive faxes.
Fax servers can also send faxes from anyone on the network, and the printer takes the place
of the printing part of a fax machine. A fax server needs a modem and a phone line.
server if your software allows you to do this. Fax servers take the place of a fax machine;
they are left on continuously, and users have a password-protected area to receive faxes.
Fax servers can also send faxes from anyone on the network, and the printer takes the place
of the printing part of a fax machine. A fax server needs a modem and a phone line.
What happens when someone turns a computer off?
The network continues to run if a computer is turned off, but the files, printer, and other
resources associated with that computer are no longer available to other computers on the
network.
resources associated with that computer are no longer available to other computers on the
network.
What if more than one person wants to print at the same time?
When several people send files to the computer attached to the printer, the first file re-
ceived is printed, and the remainder are queued — that is, they’re stored in order on the
hard drive and printed in order when the printer is free.
ceived is printed, and the remainder are queued — that is, they’re stored in order on the
hard drive and printed in order when the printer is free.
What about security?
Once a computer is connected on a network you must do more than lock the door to
prevent access to it. Most systems allow you to specify which folders or directories can be
shared with other users, and let you name the users and specify that they have the correct
password. Computers that print sensitive materials should not print to printers in a public
area.
prevent access to it. Most systems allow you to specify which folders or directories can be
shared with other users, and let you name the users and specify that they have the correct
password. Computers that print sensitive materials should not print to printers in a public
area.
Passwords aren’t usually the first thing on peoples’ minds when a small network is set up,
but without proper password protection many unwanted things can happen. These can
include malicious e-mail sent under your name, employee snooping of sensitive material,
and outsiders sneaking into an office to search the network while the user is out to lunch.
but without proper password protection many unwanted things can happen. These can
include malicious e-mail sent under your name, employee snooping of sensitive material,
and outsiders sneaking into an office to search the network while the user is out to lunch.
People tend to choose passwords that are easy to remember; unfortunately, these pass-
words are also easy to deduce. Names of spouses, children or pets may be known to co-
workers. If passwords are too complex people tend to write them down and put them in a
desk drawer, which defeats the purpose.
words are also easy to deduce. Names of spouses, children or pets may be known to co-
workers. If passwords are too complex people tend to write them down and put them in a
desk drawer, which defeats the purpose.
MHALLIFW is an example of a password that cannot be easily guessed, but it seems that
could be easily forgotten until you realize that it is the initial letters of the first eight words
of the nursery rhyme “Mary had a little lamb.” Initial letters of lines from songs or adver-
tising slogans can also be used.
could be easily forgotten until you realize that it is the initial letters of the first eight words
of the nursery rhyme “Mary had a little lamb.” Initial letters of lines from songs or adver-
tising slogans can also be used.