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How
To Set Up A Firewall
Firewall - it's like putting a front door
on your house.
:: Downloadable
PDF (120kb)
- with free distribution rights (right-click and
select Save As)
Most
people leave their computers unprotected. Installing a firewall
is like putting a front door on your house. Without it people
can just waltz on in and steal food from your refridgerator.
It
really is a honest and real security issue that can easily be
remidied...for free!
SO
WHAT IS A FIREWALL?
A firewall is a security wall to separate your computer from the
Internet. These actually come in a few different forms:
Hardware – large companies actually use a whole computer
as a firewall
Peripherals – you can even buy firewall boxes that plug
in to your network connection that acts as a firewall
Software – firewall software can be installed on your computer
to stop people from breaking in to your computer
We’re going to install a firewall, and in doing so we’re
aiming to stop:
Hackers
Script
Kiddies
Viruses
Trojans
Privacy
Breakers
Hackers
Hackers,
well we’ve all heard of hackers – the reality of it
is that some hackers are good and some hackers are bad. All hackers
like to break security, to test the limits of machines and to
see if they can outsmart or find a soft-spot in a website/computer/server/software
security system. It’s what they do after they’ve broken
in that defines a good or a bad hacker. Personally I’d like
to keep all of them out.
Script Kiddies
Script
kiddies are kind of like hackers, but instead of doing the hard
work themselves, they rely on software applications or scripts
that test security soft-spots for them. All they do is open the
software and click “go”. They can be very dangerous
– why? Because there is potential to be a lot of them around,
and the tools that they use are usually written by a very smart
hacker.
Viruses
Not
long ago there was a virus that went around the web and it would
keep resetting your computer as soon as you logged on to a live
internet connection. The reason it reset your computer was NOT
because that’s what it was made to do, it was because of
a side-effect. The virus was designed to automatically send itself
to IP addresses and spread directly to people’s computers.
Note:
An IP address is basically a number that identifies your computer
on the network – in this case the network is the internet.
Interestingly
enough there was a secondary virus that spread itself in the same
way who’s job it was to seek out and destroy the original
virus. It almost sounds like something out of Terminator.
Trojans
Trojans
are basically in the same camp as viruses. Trojans however, are
software applications that have a hidden secondary purpose. A
lot of them open up “backdoors” to your computer so
that people can log on to your computer over the internet and
take control of it.
Privacy Breakers
Some
software try’s to connect to the internet with no apparent
reason. I’ve seen software that has no reason to connect
to the net, try and connect. As far as I’m concerned, unless
the software has a very good reason to log on to it’s designer’s
server, I’m not letting it.
SCRIPT
KIDDIES GET OUT OF MY PLAYGROUND!
A firewall is the only way to keep things out, and in the case
of privacy breaker’s, information in.
Firstly
we need to decide what kind of firewall we want. For home and
small office use, a software-based firewall is fine.
You
can purchase different firewalls however one of the best firewalls
I’ve found is free for personal use.
Sygate
Personal Firewall.
This
is the one that I use, and the one I recommend other people use,
and also the one I’m going to show you how to install today.

(Sygate’s main screen)
Firstly, we need to download Sygate.
www.sygate.com
Check
out the products link, and find the link to download the free
Sygate personal firewall. They do also sell software applications
on this website, so make sure you choose the free version!
Once
the download is complete, find the file you downloaded, and double-click
it.
This
will run through the Sygate installation, which is pretty straightforward.
It’s just a standard install package, and it won’t
ask you any tricky questions.
After
installation is complete you’ll need to reboot your PC before
it’s ready to go.
LIVING
WITH THE NEW FIREWALL IN MY LIFE:
Once
we’ve rebooted you’ll notice a new icon in your system
tray. It’s two arrows, one pointing up, one pointing down.
This means Sygate is now running, and your computer is protected.
The
fantastic thing about Sygate is that it just runs in the background
and you don’t really need to touch it.
Keeping Things In:
Configuring
Sygate is performed as you go about your day-to-day internet work.
When you start up a new application that Sygate hasn’t seen
before, it’ll pop up a box saying “Do you want to
allow this program to access the network?”
If
you trust the application, click Yes. If you always want to allow
it to connect, then tick the “Remember my answer”
tick-box. From now on, whenever this application tries to connect
to the internet, your firewall will allow it to.
I’d
recommend allowing your internet browser, your email software
and any other software that uses the internet to always allow
connection.
Software
that you’re not sure about, or only occasionally want to
allow to access the internet, you can decide on a case-by-case
basis.
Software
you never want to connect to the internet, such as those applications
that you don’t think should be, click No and remember my
answer.
You
may even find software connecting to the internet that you didn’t
even know tries to!
Keeping Things Out:
Sygate
automatically stops attacks and port scans. You don’t even
have to lift a finger.
Sometimes
you may be asked if you’d like to allow someone or something
to connect to your machine. Unless you know who it is and why
they’re connecting to your machine, click No.
And
it’s as simple as that. You’ve got firewall protection!
SUMMARY:
Now
that you have your firewall installed, you’re protected
from most attacks. Keep in mind that a firewall does not protect
you from most viruses, and as with any security tool you should
also use caution when interacting on the internet. The firewall
is there to help, but it’s not a replacement for carefulness.
To
keep your computer clean, it’s also a great idea to scan
your computer for virus’s, set up a firewall and also scan
for adware/spyware often.
http://www.tacticalsuccess.com/
::
Downloadable PDF
(120kb)
- with free distribution rights (right-click and
select Save As)
Legal
Disclaimer: The above information is provided free of charge for
your conveniance only. Sam Stephens, samstephens.net or tacticalsuccess.com
is not responsible for any damage resulting from the use or misuse
of this information. This information is provided free, as is,
with no warranty of any kind.
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