From owner-freebsd-bugs  Thu May 23 10:30:15 2002
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Date: Thu, 23 May 2002 10:30:04 -0700 (PDT)
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From: Alan Larson <larson@eng.paix.net>
Subject: Re: misc/34850: scp cannot talk to ssh2 sites that have Ssh1Compatability no
Reply-To: Alan Larson <larson@eng.paix.net>
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The following reply was made to PR misc/34850; it has been noted by GNATS.

From: Alan Larson <larson@eng.paix.net>
To: freebsd-gnats-submit@FreeBSD.org, larson@paix.net
Cc:  
Subject: Re: misc/34850: scp cannot talk to ssh2 sites that have Ssh1Compatability no
Date: Thu, 23 May 2002 10:24:20 -0700 (PDT)

 Restatement of the problem:
   When a client is talking to sshd2 from openssh, scp will likely fail.
 
   This is because sshd2 will notice flags that indicate the transfer is
 in scp1 protocol, and will attempt to invoke scp1 via compatability.
 (This is somewhat similar to the invoking of sshd1 if that has not
 been disabled.)
 
   Unfortunately, the path in effect at the time is:
 	/usr/bin /bin /usr/local/ssh2/bin
 
 which doesn't contain the scp1 program or link, (presuming an
 installation of ssh2 in /usr/local).
 
   This is a problem for any client that speaks ssh2 link and authentication,
 but speaks scp1 for file copies.  openssh will do this.
 
   A test for this is:
 
 ssh -x host.foo.com 'echo $path;scp -p -f .cshrc' < /dev/zero
 
 which will echo the path it tried.
 
   The fix (done on the server system running sshd2) is:
 
 test -e /usr/local/ssh2/bin/scp1 || \
 	ln -s ../../ssh/bin/scp1 /usr/local/ssh2/bin/scp1
 
   I have installed this fix on our systems, and it solved the problem.
 
 
 	Alan

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