James Muehlner created GUACAMOLE-1652:
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Summary: SFTP+VNC broken when built with OpenSSL versions >= 1.1.0
Key: GUACAMOLE-1652
URL: https://issues.apache.org/jira/browse/GUACAMOLE-1652
Project: Guacamole
Issue Type: Improvement
Components: guacamole-server
Reporter: James Muehlner
VNC connections with SFTP file transfer enabled are failing with the following
error:
`ERROR: Public key authentication failed: Callback returned error`.
This seems to only be happening with OpenSSL versions >= 1.1.0. Strangely, SSH
and RDP connections to the same machine, with the same SSH parameters _do_
still work.
Per [https://www.openssl.org/docs/man1.1.1/man3/OPENSSL_init_ssl.html]
{quote}As of version 1.1.0 OpenSSL will automatically allocate all resources
that it needs so no explicit initialisation is required. Similarly it will also
automatically deinitialise as required.{quote}
It looks like removing the calls to the OpenSSL library initialization in
common-ssh fixes the problem for me. Perhaps some library we're using for VNC
is also initializing OpenSSL.
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