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Date:      Thu, 1 Jan 2004 08:52:05 +0900
From:      horio shoichi <bugsgrief@bugsgrief.net>
To:        John Von Essen <essenz@bjork.quonix.net>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: (2) rsh and rcp problems between Solaris and FreeBSD
Message-ID:  <20031231.235211.44149af35cd3d08f.10.0.3.9@bugsgrief.net>
In-Reply-To: <Pine.BSF.4.10.10312311009560.6247-100000@bjork.quonix.net>
References:  <20031231095115.GA98228@happy-idiot-talk.infracaninophile.co.uk> <Pine.BSF.4.10.10312311009560.6247-100000@bjork.quonix.net>

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On Wed, 31 Dec 2003 10:20:23 -0500 (EST)
John Von Essen <essenz@bjork.quonix.net> wrote:
> One more thing. Apparently, if I do 'rsh -n host cmd' on the Solaris box,
> it no longer hangs, and I can do it back to back indefinitely. Say I do
> ten of them, 5 secs apart. I still see the following 10 times in netstat:
> 
<snip>
> 
> This doesn't affect rcp, so those are still slow. The only other thing is
> that I am going through a firewall, from an internal network to a dmz.
> 
> 
> -John
> 
<snip>

A couple of comments:

o The rcp in stock FreeBSD has changed its behavior somewhere 4.7 - 4.9, to as
  you see it. It has been behaving more 'standard' way before. Self installing
  krb4 or heimdal from kth seems provides better rcp.

o How does the firewall treat backward connections ? (Ipfilter proxy ?)
  Depending on it, ports may not be properly 'diffused' (this again might
  be due to 'odd' rcp, though). As far as I can tell, rcp with said makes
  on both ends over ipfilter with r-* proxy works well (not very well,
  unfortunately).

  Closely watching FreeBSD's rcp behaviors at the connections would reveal
  something more.



horio shoichi



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