Firewalls: Don’t Get Burned

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Firewalls Dont Get Burned
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First, the bad news if your computer has access
to the internet, bad guys on the internet could
have access to your computer to carry out a cyber
attack. Now, the good news a properly
configured, capable firewall will provide an
important layer of protection.
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What is a firewall?
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A firewall is a security component that blocks
unauthorized message traffic from entering and/or
leaving a network. Network messages are sent in
packets, and firewalls inspect those packets
against a set of rules to identify and block
threats. Those rules can be based on message
source, destination, and/or content. For example,
you could configure rules that block messages
from specific countries or websites. Firewalls
can be implemented as physical network hardware
devices, software that runs on network routers,
or as software that runs in your computer.
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What is the best firewall for you?
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Most of our customers networks serve homes or
small businesses. For those applications,
separate physical hardware devices are usually
overkill. To access the internet, your network
needs a router and it is typically integrated
with a modem in a device called a gateway. The
router/gateway may be provided by your Internet
Service Provider (ISP), or you may provide your
own. These days, almost all routers/gateways have
integrated firewalls, and they should be turned
on.
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Windows, Apple IOS, and Linux operating systems
all have built-in software firewalls. The Windows
firewall is usually enabled by default, but it is
possible that is disabled you should check to be
sure it is enabled. The IOS firewall cannot be
disabled. The Linux firewall is disabled by
default, so it should be enabled. You can also
buy add-on software firewalls. For the typical
home or small office, the combination of the
router and operating system firewalls is probably
a good choice.
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Configuration
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In most cases, the default firewall configuration
is a good starting point but may not protect you
against all of the threats you are experiencing.
Most of our customers are probably uncomfortable
configuring their firewalls. Call or visit a
Click Away store to get help.
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Warning
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While a firewall is a necessary protection layer
for your network, it is not sufficient. You also
need high quality antimalware software by Click
Away best computer services near me. Please see
our blog post on antimalware software for more
information.
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