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Rules to add firewalling rules ?

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therevenger30
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Rules to add firewalling rules ?

#1

Post by therevenger30 »

Hi,
(french user)
I'am an Linux user, so I dont know howto do with ipwf. I "just" know netfilter and ipfilter.

I need to know the way to add rules to respect the way ipfw use the rules.

First ou last rules affect the packet ?

For example, imagine :

I first block every thing
then I open 21, 22, 81, 443 port
does than mean thoses last ports will be opened or not ?

Or is it needed to open ports 21,22,81, 443 then blocking every thing else after ?

Thanks.

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Lee Sharp
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Re: Rules to add firewalling rules ?

#2

Post by Lee Sharp »

All firewalls go with first match, so you need your allows before your block everything.

therevenger30
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Re: Rules to add firewalling rules ?

#3

Post by therevenger30 »

ok thanks.

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