🚀 go-pugleaf

Hello,

I first apologize for this cross-posting (and for my poor english),
but I *really* need a quick answer and I think the newsgroups I choose
are all corresponding to my question. 

I'm a student working for a french small non-profit organization for
refugees and we need to distribute our database (name and other
informations about people helping refugees in many coutry) on the
Internet (which is the lowest cost way) but, of course, we don't want
everybody to access our data withou authorization

I decided to use Linux as a firewall / proxy which seems to work very
well but I want to add IP filtering now. 

I looked for information on how to do this in FAQ, HOW-TO's and many
other documentations, but I didn't find a (almost) *free* solution (we
can't afford buying a commercial product such as Firewall-1).

So, here is my question : is there a way to use Linux (whatever the
kernel is 1.2.13 or 2.0.0 or 2.1) as a routing / filtering machine ?
I'd like to be able at least to filter incoming / outgoing IP adresses
and port if possible.

Maybe should I recompile (again ;-) the Kernel with modifications in
the /inet/* sources ? Which one ?

I really thank you for the help you could give me.

Could you please answer to this question by e-mail
(delorme@worldnet.fr) because I have little access to Usenet. I will
repost any answer giving a solution to this problem so that everybody
could benefit from it.


Thank you very much.

Note : sorry, but I won't give any more explanation about my
'compagny', for security reasons. 

(to french reader's : desole d'utiliser la langue de Shakespeare et
non celle de Voltaire, mais ceci, vous me comprendrez, permet une plus
large comprehension :-)
Charles DELORME          __   delorme@worldnet.net
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 French on der Infobahn \__   http://www.worldnet.net/~delorme
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