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Internet
Filtering Techniques
The
following is an explanation of internet filtering
techniques and products that people can use to
protect their families.
Eagles-Net
offers pre-filtered Internet access to protect
your family. The pre-filtering works with a combination
of "bad site" filtering and content
filtering. We recommend a combination of pre-filtered
Internet access and the use of a monitoring/blocking
software on your computer for the safest Internet
experience. Read
on to find out more about what you can do to protect
your family.
Blocking
Software:
Blocking
software is software that uses a "bad site" list.
It blocks access to sites on the list. Some of
the software companies allow you to customize
the list, by adding or removing sites from that
list. Other software companies try to keep the
sites on their list secret, and don't permit parents
to add or remove sites from the list.
Blocked
site lists need to be updated regularly. Some
software companies allow you to download updated
sites daily. Others may charge for updates after
a certain period, and may update their lists less
frequently.
No
matter how frequently they are updated, however,
the number of websites published each day far
exceeds the ability of the software companies
to review the sites, and categorize them for "bad
site" lists.
Filtering:
Filtering
software uses certain keywords. It blocks sites
containing these keywords, alone or in context
with other keywords. Software that uses standalone
keywords may often filter out harmless sites,
because of the inclusion of innocent words within
those sites.
The
biggest problem with using keyword filtering is
that innocent sites may be blocked. In addition,
some website operators have learned to get around
the filtering by misspelling the typical keywords.
As
with the "bad site" lists, the lists of keywords
used by the filtering software should be customizable
by the parent, and every parents should be able
to see which terms are filtered.
Some
software permits parents to select which kind
of sites it wants to filter...such as tobacco
products, or sexual content. Selecting the category
of content enables a certain list of keywords
unique to that category of sites, such as cigarettes,
tobacco, and words that graphically describe sexual
activities or selected vulgarities.
Monitoring
and Tracking:
Some
software allows parents to track where their children
go online, how much time they spend online, how
much time they spend on the computer (offline,
such as playing games) and even allows parents
to control what times of day their children can
use the computer.
Many
parents who find filtering or blocking distasteful,
especially with older children and teens, find
monitoring to satisfy their safety concerns. They
can know, for sure, whether their children are
following their rules.
This
is particularly helpful when both parents are
working outside of the home, or with working single-parents,
who want to make sure their children aren't spending
all of their time on the computer. They merely
set a limit on the amount of time the child can
use the computer and often "lock their children
out" of the computer until they can get home from
work.
Not
all of these products, however, let the child
know they are tracking them.
Comparing
the Products:
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Net
Nanny allows parents to customize its
"bad site" list, by adding or removing sites.
It doesn't filter words in context, but
blocks outgoing information. It has free
daily updates. It's
better when used with direct ISP access,
rather than online services. In addition,
parents can chose what to block and what
not to block, sicne Net Nanny allows you
to see which sites are blocked and modify
the list. Net Nanny has two special features:
it shuts down if a child seeks to access
blocked sites to many times, and it prevents
children from deleting files from your computer.
It's easy to use and install.
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CyberPatrol
is harder to install and setup, but has
some wonderful features. You can have up
to 9 different user settings, which allows
you to use a different setting for each
child. It doesn't filter keywords in context
or track where your child has been, but
it can control offline, as well as online,
activities. CyberPatrol updates its lists
daily, and comes with a one-year subscription
of free updates. It has outgoing blocking.
It's the best product to use with online
services, such as AOL.
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CYBERSitter
allows parents to customize their keyword
and site lists. It doesn't warn a child
when it blocks a site, something that I
wish it did. It allow parents to monitor
their child's online surfing by giving parents
a tracking report and blocks outgoing information.
It's also easy to setup and install. It
has free daily updates, too.
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SurfWatch
is the only product that doesn't block
outgoing information. It's the easiest to
install and setup, though. It also has a
very large good and bad site list inventory.
It can block access to chatrooms, entirely,
and allows parents to customize the site
lists. It has free daily site updates.
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