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Article #18888linux firewall (configuring ports)
From: Al Kooz
Date: Sat, 05 Feb 2000 00:00
Date: Sat, 05 Feb 2000 00:00
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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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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f4b73,af97dfea83113074,start X-Google-Attributes: gidf4b73,public From: Al Kooz <kooz@gmx.net> Subject: linux firewall (configuring ports) Date: 2000/02/05 Message-ID: <389C30CD.8DD41054@gmx.net> X-Deja-AN: 581912338 Content-Transfer-Encoding: 7bit X-Accept-Language: en Content-Type: text/plain; charset=us-ascii X-Complaints-To: usenet@dplanet.ch X-Trace: hs1b01h02-1.dplanet.ch 949759885 8536 212.35.53.237 (5 Feb 2000 14:11:25 GMT) Organization: diAx dplanet (postings do not reflect the views of diAx) Mime-Version: 1.0 NNTP-Posting-Date: 5 Feb 2000 14:11:25 GMT Newsgroups: ch.comp.os.linux