Hi Stephan, I have no SuSE-Firewall or Personal-firewall or whatever running! When you adapt these scripts to your setup then (External interface, internal interface) they'll work! I use them on two completely different networks (with slight adaption). Best regards, Ralf P.S.: As we're living in the same country - if you still don't get it working - how about "Telefonseelsorge" (telephone-care)? :-) OKDesign oHG Security Administrator wrote:
Hi Ralf,
thanks for your mails. In your first answer to my problem you postet two iptables-rules, which you told as working in your system. Well, I implmented them into my system, they are accepted, but it doesn't work. I still get no dir-listing. Did you do anything else besides these two rules ?
About SuSE-Proxy-Suite: Can someone please give me an URL with infos about this ? I've heard of it, but never had the need to get any deeper into. Now it seems as if this is necessary (something I absolutely cannot understand, because with ipchains it was abolutely no problem to get ftp-connect working without any error. So why shouldn't it also be possible with iptables ? Sorry, I can't get the point here...). What exactly is this suite and what exactly is it able to provide ?
Thanks in advance
Stephan
-----Ursprungliche Nachricht----- Von: Ralf Ronneburger [mailto:ralf@ronneburger.de] Gesendet: Mittwoch, 23. Januar 2002 19:34 An: suse-security Betreff: Re: [suse-security] probs with ftp-masquerading
Right, ftp-redirecting doesn't work, because you oviously don't have the http-header to analyze for your proxy. Either use squid and set ftp-proxy or use SuSE-Proxy-Suite, I've never tried the latter but I had no troubles with squid up to now.
Ralf
Peter Wiersig wrote:
Am Mittwoch, 23. Januar 2002 18:47 schrieb Stephan:
Von: Alberto Tarantino [mailto:alberto.tarantino@archidata.it]
I know it might sound like a "dirty trick".. but.. why don't you use port redirection and Squid as FTP proxy? That might improve security as well
as
be a very easy ti implement solution.
How exactly must this be done ?
I think it won't work.
ftp is a protocol which is a bit harder to manage in a firewall.
I wouldn't try to use port redirection but install a ftp-proxy and
configure
my client programs to use this proxy.
The firewall rule I would chose would be:
iptables -p tcp -s ! ftpproxy/32 -d 0/0 --dport 21 -j REJECT
and this would only apply to traffic from internal to external networks.
Peter
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