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Article #18888

linux firewall (configuring ports)

#18888
From: Al Kooz
Date: Sat, 05 Feb 2000 00:00
23 lines
1664 bytes
Hi everybody

I'm new with linux firewalling although I've been working with linux for

quiet a while now. After having read through most of the relevant
HOWTO's about firewalling and IP masquerading and after a lot of
searching on the net, I finally succeeded in installing my little
firewall network gateway at home.
As everybody, I'm using ipchains, and I got all ports blocked except for

a few (like the www, ircd, news and pop and the like). Now, everything
is working, just that whenever I try to connect to an FTP server, the
server tries to open a port back on my firewall (for whatever reason).
Of course, since everything is closed, I can't get connected. Thus I
cannot use FTP at all. Can anybody tell me how to do that, for it to
work ?

Also, does anybody have an ipchains config script, that I could look at,

as an example to see how a REAL firewall is set up. I haven't found any
complete example script anywhere on the net. that'd be great.

thx kooz
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From: Al Kooz <kooz@gmx.net>
Subject: linux firewall (configuring ports)
Date: 2000/02/05
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