A firewall is a physical
system (material) or logic (software) filtering the flood
of information which enters and which leaves a computer
or a network. It is the tool complementary to the antiviruses.
The purpose of it is to protect
us from the external ill will and interns. The firewalls
make it possible to avoid:
-) The curious ones which generates traffic, which makes
more for fear of evil, but which sometimes ends up being
-) the vandals, those which want to annoy to annoy, (saturation
of connections, saturation of CPU, corruption of data,
masquerade of identity...)
-) The escape of information towards outside.
As for the antiviruses, one
finds on the market much firewall. According to the specialists,
best Stop and Zonealarm Pro would be Look'. Personally
I do not know, I always use Zonealarm Pro and I never
had concern, it blocks all that I ask him. In a simple
click I know all IP addresses of people who wanted to
force connection, moreover, in Zonealarm line gives me
all the co-ordinates of these companies (postal addresses,
telephone, names of responsible people...), and even the
exact place on a roadmap!! For the others I think that
the same applies but I do not want to advance. Here a
small list of alleged the best fire walls. In any event,
no fire wall will be never enough effective to prevent
somebody penetrating in a computer and from reaching informations.
Steganos Online Shield
Kerio Personal Firewall
McAfee Desktop Firewall
Xelios Personal Firewall
Norton Personal Firewall
Sygate Personal Firewall
Once the fire wall installed
and configured, check if it blocks all the intrusions.
Sites like those: Cnil.fr
will be able to inform you about the state of protection
of your PC.
Last example on the intrusions and the diversion of PC:
Think of decontaminating the report/ratio of errors Internet
Explorer. With Each time Internet Explorer plant it sends
a report/ratio at Microsoft without you to prevent. To
avoid Microsoft of all knowing about you this procedure
should be decontaminated: go in the base of register,
click on start , Execute and type regedit. To seek key
HKEY_LOCAL_MACHINE \ Software \ Microsoft \ Internet To
explore \ Hand. If the IEWatsonDisabled key does not exist
in the right shutter, create. You will give him like value
To close one of the doors
of your PC against the hackers, it is necessary that you
parameterized connections network.
For Windows 98 :
Go in the Control panel and choose Connections network
and remote access, in connexion used, you click on Properties.
There, choose the Type mitre of waiter and strip NetBEUI,
in the selection authorized Protocoles network.
For Windows Millenium :
Always in Options Internet, the mitre Connections, choose
your FAI and its Properties. In the mitre multiple Connections,
notch the box not to use additional peripherals.
For Windows XP :
Always in the window Network, go in the mitre Network
management and deselection File sharing... and click on
the Avanced mitre. Notch then Protect my computer and
- To decontaminate UPnP urgently.
The function Universal Plug and Play (UPnP) is activated
by default under Windows. It reveals your PC as a waiter
as soon as you are connected to Internet. It harms seriously
the safety of your environment by opening two ports. To
mitigate this fault, use the small free program UnPlugn'
Play of GRC.COM. not requiring any installation, it is
enough to open it, the fire wall will warn you if you
want leave the opened port, said not, and the ports will
Will know that the majority of the pirates, is 80% of
the attacks on the family PC, are due to Script-Kiddies.
Script-Kiddies are small hackers which is exerted to improve.
They can seek financial information in your documents,
to go to see in the history to see the sites banks which
you will visit to pump you without your knowledge your
money. Always pay attention, crypt your files, to see
do not leave no tracks : print all the documents, zipp
them with a code. For more explanations, see the Cryptage