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000190_deja@alienbigcats.com_Wed Jun 25 16:14:53 EDT 2003.msg
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Article: 14418 of comp.protocols.kermit.misc
Path: newsmaster.cc.columbia.edu!phl-feed.news.verio.net!nntp1.tagonline.com!nycmny1-snf1.gtei.net!nycmny1-snh1.gtei.net!news.gtei.net!bloom-beacon.mit.edu!newsfeed.stanford.edu!postnews1.google.com!not-for-mail
From: deja@alienbigcats.com (paul wells)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: ftp DIR times out
Date: 25 Jun 2003 12:44:11 -0700
Organization: http://groups.google.com/
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Message-ID: <669ac511.0306251144.2f18194e@posting.google.com>
References: <669ac511.0305281547.1cec3194@posting.google.com> <zGgBa.77352$h42.24210@twister.nyc.rr.com> <3ED91E16.1F55E438@yk.rim.or.jp>
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Xref: newsmaster.cc.columbia.edu comp.protocols.kermit.misc:14418
Ishikawa <ishikawa@yk.rim.or.jp> wrote in message news:<3ED91E16.1F55E438@yk.rim.or.jp>...
> "Jeffrey Altman [Road Runner NYC]" wrote:
> >
> > FTP requires the use of two sockets. One for the command channel and
> > one for the data channel. Your attempt to establish the data channel is
> > being blocked. Most likely your firewall is configured to block
> > outbound connections to arbitrary ports.
> >
> > You will need to configure Kermit to use an HTTP Proxy Server or SOCKS.
> ...[omissin]...
>
> I thought I was going to write why not use PASV mode of ftp originally.
>
> But then I got curious and tried to see how I enabled PASV mode
> inside Kermit. I found that KERMIT indeed uses/issues PASV mode
> internally
> without being told so.
>
> Since use of PASV requires the
> cooperation of ftp server in question (some ftp servers may not
> be configured to allow PASV or doesn't support PASV
> at all), use of PASV does not solve firewall problem always.
> (I just found out that my ISP's ftp doesn't seem to grok PASV.)
>
> So, for the original question,
> it is indeed good if HTTP Proxy Server and/or SOCKS proxy
> is available or that the firewall is a flexible and
> powerful one such as Firewall-1, etc..
Belated thanks for both replies - turned out I needed to set passive
mode off to talk to a particular site.