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Posted by Joachim Schipper on July 2, 2005, 1:49 pm
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ravicse04@gmail.com wrote:
>
> Hi all ,
>
> Today I was studying about the Skype instant messager. Here I read one
> statement regarding firewall configuration and skype messanger.
> http://public.planetmirror.com/pub/skype/skype_p2pexplained.html
> Can Any body tell me the meaning of this line;
>
> "Skype works behind the majority of firewalls and gateways with no
> special configuration"
>
> Means how can it is possible in skype works without configuration.
> please give me brief explanation and link.
>
> I request all the member of this group to discuss this query.
>
> Ravi
If you read closely, they used un-firewalled machines as routers;
presumably, they have clients initiating outbound connections to these
unfirewalled machines. This will bypass simple NAT routers, but will not
pass a decently-configured firewall. (And only works against NAT routers
because they are very basic, security-wise.)
Learning to configure a firewall is a lot less bother than trying to
bypass one. A well configured one, at least.
Joachim
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