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Safe Browsing in the Classroom
step-by-step instructions
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Introduction
In theory, the Internet
can be a valuable tool for the classroom teacher, but in
practice, few teachers are comfortable with putting an entire
class online at one time. Invariably, young students get
drawn into confusing situations, through pop-up windows
or by clicking on distracting links. The teacher usually
spends the most time helping kids find what they actually
want to see, and not enough time enhancing their actual
learning experience.
Not only can pop-up windows
and other annoyances ruin the experience for children, but
there is also a chance that little Johnny could some disturbing
image too. This could have serious repercussions for the
teacher and the school.
Thankfully, there is a
simple, and free, solution to this problem. Just follow
the steps listed below, and your students will soon be surfing
in total safety. They will only be able to visit sites you
choose, and they will probably see no advertising at all.
(1) Install this browser
on all computers
This
excellent browser from Flashpeak Software has a feature
that lets you totally control Internet access. Simply
insist that your students only use this browser when using
the Internet in your computer lab.
NOTE: This
method will be effective only for children who stay out
of the configuration settings. Unfortunately there
is no password for the settings page. Nonetheless, this
method should be quite effective for most EFL teachers in
an educational setting. It is not suitable for home users,
as children may be able to adjust the configuaration settings.
Click the logo below to
visit Flashpeak's download page. You may install the full
version or the lite version.
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Flashpeak.com
Publisher's quote:
"Slim Browser is a multiple-site browser based
on tab-page interface. It incorporates a large collection
of wonderful features like recoverable popup killer,
form filler, site group, quick-search, auto login,
hidden sites, built-in commands and scripting, online
translation, script error suppression, blacklist/whitelist
filtering."
Screenshot |
(2) Create your Blacklist
and Whitelist
Once the Slimbrowser is
installed, run it. Try it out for a few minutes. It uses
Microsoft's Internet Explorer engine, but gives you a new
interface and lots of extra features. If you have always
used Microsoft's Internet Explorer, you will need to understand
that Slimbrowser is a tabbed browser. When you
Shift-Click or Ctrl-Shift-Click on a link,
it will open a new tab in the program, rather than a whole
new window. Be sure you understand how this feature works
because you will probably need to explain it to some kids.
Now, choose Options,
under the Tools menu. (screenshot)
You will see a settings panel with the Popup Killer settings
visible. Make sure the Enable Site Filter setting
is checked. You will also see Black List and White
List buttons, but these are NOT the ones you want.
These are for the popup killer only. (screenshot)
To get to settings important
to you, choose URL Filter near the bottom of the
large white rectangle. (screenshot)
You will see two settings checkboxes. Be sure both of them
are checked. You will also see two more Black List
and White List buttons. Open the black list, and
you will see a list of URLs and fragments of URLs. (screenshot)
Any Web addresses containing these words cannot be visited
while the URL filter is active, UNLESS that address
is approved by the white list.
You only need to add one
entry to the Black List. To do this, click your mouse pointer
once inside the lower white rectangle. The URL fragment
that is inside that rectangle now should become selected
in blue. (screenshot)
Simply type *.* to replace the URL fragment you saw. (That
is: asterisk, period, asterisk; just those three characters)
Now you must hit the Add button to
put it on the list. (screenshot)
Now take a look at the
white list. This is where you will add any domain names
or fragments that you want to use. You will see that there
are only two entries on the white list - Yahoo.com and Hotmail.com.
Just to experiment, close the browser (shut the program
off) and then run it again to load the settings you entered.
Try visiting Google.com. If you did everything right, you
should see nothing at all. Now try www.yahoo.com. You should
be able to use it, but not open any links from the search
results.
Now go back to your White
List (Be careful to use the URL Filter
Black and White Lists, not the Popup Killer lists.)
and add any domains you want to let your students surf.
For example, you might want to add "BBC.com" or
"BritishCouncil.com" to the list.
This is a great way to
keep all your students on a single Web site or even Web
page.
(3) Edit the lists easily
in Notepad
I know what you're thinking.
This is going to be a huge bother to change the browser
settings every time you want to use the Net. Well it doesn't
have to be such a bother if you learn a bit more. There
are two approaches to simplifying things and saving your
time as a teacher.
We'll cover the simplest
solution first. Set up Slimbrowser on all your classroom
computers, making each white list as you like it. That's
it. Now, if you want to visit a new site, simply use a different
browser, such as Internet Explorer or Mozilla Firefox.
But for the better solution...
you will need to find the files in which Slimbrowser stores
its settings. The universal URL filters
are stored in two text files called ufblack.ini
and ufwhite.ini. If you are running Windows
XP or Windows 2000, go to your Documents and Settings folder
and search for them. You may need to make Windows show
hidden files and folders and/or make Windows show
file extensions before you can locate them.
In Windows 2000, these
two files are usually found here:
C:\Documents and
Settings\your-login-name\Application Data\SlimBrowser
Now, open ufwhite.ini
in Notepad.
To do this, Right-Click and choose Open With or
use Shift-Right-Click if you don't see the Open With
option. (screenshot)
The file should open in Notepad. Now you can just type in
whatever domains or URL fragments you want. Put only one
on each line. You may use the asterisk (*) as a wildcard
to represent any number of characters. For example, *.gov
will allow any US government Web sites to be seen. (screenshot)
(4) Make it all easier with
automation!
You can make different white
lists to use at different times. I use one white/black list
combination that contains no URL fragments at all (no restrictions
on the browser) and one that contains just the sites I use
teaching.
It
is easy to use a batch file to switch between them.
You may download copies of my white and black lists and
the batch files I use to switch between them. Just run the
batch file by double-clicking it. To view the batch files
(they look like this),
Right-Click and Edit the lists in Notepad.
Click these files to download.
Your computer or anti-virus program will probably warn you
against downloading batch files, but go ahead anyway. (You
can always scan them for viruses after you downlod them.)
If you can't get past your anti-virus, then try downloading
the zip file containing all the files.
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ufblack.ini
This is the same file that comes
with Slimbrowser. You shouldn't
need to download this unless you accidentally
delete the original file and want to get it back. |
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ufwhite.ini
This is the same file that comes
with Slimbrowser. |
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ufblack.ini.cuf
This is the black list that blocks
out the entire Internet using *.* as a URL filter.
The .cuf extension is used by the batch file
when renaming files. |
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ufwhite.ini.cuf
This is the list of "good
sites" that you want to let your students surf. |
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restrict.bat
Double-clicking this batch file
will switch the names of the files, causing the restrictions
to be in effect. |
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restrict_undo.bat
Double-clicking this batch file
will switch the names of the files back again, causing
the restrictions to be removed. |
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all_six.zip
This Zip file contains all six
files. |
(5) Make shortcuts to the batch files
To make life really simple, you can create
shortcuts in your Start menu or on your desktop. Double-clicking
the shortcut is the same as double-clicking the batch files
itself. To make the shortcuts, find the batch file you want,
right-click on it, and choose Send To - Desktop.
Now you can put the restrictions in effect,
or remove them, just by clicking a shortcut on your desktop
or in your Start menu. It can't get any easier than that,
trust me. |