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  <title>PuTTY bug ssh.com-userauth-refused</title> 
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  <h1 align="center">PuTTY bug ssh.com-userauth-refused</h1> 
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    This is a mirror. Follow this link to find <a href="https://www.chiark.greenend.org.uk/~sgtatham/putty/">the primary PuTTY web site</a>. 
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  <p align="center"> <a href="../">Home</a> | <a href="../faq.html">FAQ</a> | <a href="../feedback.html">Feedback</a> | <a href="../licence.html">Licence</a> | <a href="../maillist.html">Updates</a> | <a href="../mirrors.html">Mirrors</a> | <a href="../keys.html">Keys</a> | <a href="../links.html">Links</a> | <a href="../team.html">Team</a> <br> Download: <a href="../latest.html">Stable</a> · <a href="../snapshot.html">Snapshot</a> | <a href="../docs.html">Docs</a> | <a href="../changes.html">Changes</a> | <a href="./">Wishlist</a> </p> <b>summary</b>: Breakage when compression enabled with ssh.com 3.2.0 server
  <br> <b>class</b>: <i>bug:</i> This is clearly an actual problem we want fixed.
  <br> <b>present-in</b>: 2002-07-02 2002-08-04
  <br> <b>fixed-in</b>: 2002-08-09 <a href="https://git.tartarus.org/?p=simon/putty.git;a=commitdiff;h=e8ab51144271847f7cc6a722e35c28e35587eff5">e8ab51144271847f7cc6a722e35c28e35587eff5</a> 0.53
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  <p> We've received reports of the message "Server refused user authentication protocol" when attempting to connect to an <a href="http://www.ssh.com/products/ssh/">ssh.com</a> server (version string "SSH-2.0-3.2.0 SSH Secure Shell (non-commercial)") with compression enabled. Connection is fine when compression is disabled. </p>
  <p> In the code, this message corresponds to not receiving the right response to a "ssh-userauth" service request in SSH-2. </p>
  <p> We've also heard of problems with port-forwarding with compression enabled. </p>
  <p> <em>Update:</em> We believe that the bug in talking to ssh.com 3.2 with compression enabled has been fixed as of 2002-08-09. We've had one confirmation. </p>
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   (last revision of this bug record was at 2016-12-27 11:40:22 +0000)
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