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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 39373] - scp task does not work for some sshd, which does not scp1 protocol.
Date Tue, 25 Apr 2006 00:09:10 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=39373





------- Additional Comments From ymnk@jcraft.com  2006-04-25 00:09 -------
(In reply to comment #10)
> (In reply to comment #9)
> > SSH-2.0-3.2.9 F-SECURE SSH 3.2.3
> 
> It appears that the ascii codes for the server version string returned by F-
> Secure is lower case. The following patch to Session.java will address the 
> issue.

It is curious.  You had written as in comment #9
SSH-2.0-3.2.9 F-SECURE SSH 3.2.3
, which starts with upper case string "SSH-" and the RFC4253[1] says at Section 4.2 as follows,

  4.2.  Protocol Version Exchange
  
     When the connection has been established, both sides MUST send an
     identification string.  This identification string MUST be

         SSH-protoversion-softwareversion SP comments CR LF

     Since the protocol being defined in this set of documents is version
     2.0, the 'protoversion' MUST be "2.0".  The 'comments' string is
     OPTIONAL.  If the 'comments' string is included, a 'space' character
     (denoted above as SP, ASCII 32) MUST separate the 'softwareversion'
     and 'comments' strings. 

I don't have the reason why it starts with 'ssh-'.

> The task is still not working however. Now I get the following error...
> com.jcraft.jsch.JSchException: Session.connect: java.io.IOException: invalid data
> This exception is thrown during the Session.read(buf) method.

If it really sents 'ssh-', it may not use formal ssh2 protocol, IMHO.
Anyway, that problem is not related to this topic.

[1] http://www.ietf.org/rfc/rfc4253.txt



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