Firewall, anti-virus, and port forwarding

Firewall, anti-virus, and port forwarding

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Subject Author Date
Firewall, anti-virus, and port forwarding pianukim 02-24-2005
Posted by on February 24, 2005, 7:42 pm
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I've only recently discovered the benefits of port forwarding (for
hosting games and running torrent downloading programs) and though I
only do it sparingly, I am curious as to the actual vulnerabilities of
forwarding a port.

Everything I've read mentions "intrusions" of one form or another, but
in very general terms. I hear the word trojan thrown around a lot, and
I understand that there are trojans that exploit specific ports, but is
that the only danger? I no longer use McAfee and instead opt for my
router's firewall, and the applications I use that take advantage of
port forwarding only for a very small range of ports.

Does allowing certain ports to be forwarded really open up my system to
attack? Is the attack actually someone who is able to poke around my
system, accessing and changing files and configurations, or is it
merely something akin to a trojan; and if so, wouldn't my anti-virus
(Norton Pro) detect it?

Thanks in advance for your time; I know I'll sleep a lot better knowing
my downloads of TailSpin or Animaniacs episodes wasn't inviting the
world to read my emails or change my router configurations.

Andrew



Posted by Netuser 58 on February 25, 2005, 6:31 am
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pianukim@hotmail.com wrote:
> I've only recently discovered the benefits of port forwarding (for
> hosting games and running torrent downloading programs) and though I
> only do it sparingly, I am curious as to the actual vulnerabilities of
> forwarding a port.
>
> Everything I've read mentions "intrusions" of one form or another, but
> in very general terms. I hear the word trojan thrown around a lot, and
> I understand that there are trojans that exploit specific ports, but is
> that the only danger? I no longer use McAfee and instead opt for my
> router's firewall, and the applications I use that take advantage of
> port forwarding only for a very small range of ports.
>
> Does allowing certain ports to be forwarded really open up my system to
> attack?


Test your router firewall here to see:
http://www.hackerwatch.org/probe/

Netsuser 58



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