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From "Michael Jumper (JIRA)" <j...@apache.org>
Subject [jira] [Created] (GUACAMOLE-39) If the VNC parameter enable-sftp is set to true but the SFTP server is not connectable, the system can not be accessed with VNC
Date Thu, 26 May 2016 21:11:13 GMT
Michael Jumper created GUACAMOLE-39:
---------------------------------------

             Summary: If the VNC parameter enable-sftp is set to true but the SFTP server
is not connectable, the system can not be accessed with VNC
                 Key: GUACAMOLE-39
                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-39
             Project: Guacamole
          Issue Type: Bug
          Components: RDP, SSH, VNC
    Affects Versions: 0.9.9
            Reporter: Michael Jumper


{panel:bgColor=#FFFFEE}
*The description of this issue was copied from [GUAC-1509|https://glyptodon.org/jira/browse/GUAC-1509],
an issue in the JIRA instance used by the Guacamole project prior to its acceptance into the
Apache Incubator.*

Comments, attachments, related issues, and history from prior to acceptance *have not been
copied* and can be found instead at the original issue.
{panel}

If a connection is configured to have SFTP support for file transfers with VNC, and the SFTP
server goes down or is not connectable for any reason, the system can not be accessed. The
Home, Reconnect, Logout dialog is displayed.

>From the guacd log:

{code:none}
Mar  3 10:20:25 guacd-server guacd[18646]: Protocol "vnc" selected
Mar  3 10:20:25 guacd-server guacd[18646]: Connection ID is "$7ee12ae4-2a1d-4d4a-994c-ea2a4c4f9c02"
Mar  3 10:20:25 guacd-server guacd[18646]: VNC server supports protocol version 3.8 (viewer
3.8)
Mar  3 10:20:25 guacd-server guacd[18646]: We have 1 security types to read
Mar  3 10:20:25 guacd-server guacd[18646]: 0) Received security type 2
Mar  3 10:20:25 guacd-server guacd[18646]: Selecting security type 2 (0/1 in the list)
Mar  3 10:20:25 guacd-server guacd[18646]: Selected Security Scheme 2
Mar  3 10:20:25 guacd-server guacd[18646]: VNC authentication succeeded
Mar  3 10:20:25 guacd-server guacd[18646]: Desktop name "Windows8"
Mar  3 10:20:25 guacd-server guacd[18646]: Connected to VNC server, using protocol version
3.8
Mar  3 10:20:25 guacd-server guacd[18646]: VNC server default format:
Mar  3 10:20:25 guacd-server guacd[18646]:   32 bits per pixel.
Mar  3 10:20:25 guacd-server guacd[18646]:   Least significant byte first in each pixel.
Mar  3 10:20:25 guacd-server guacd[18646]:   TRUE colour: max red 255 green 255 blue 255,
shift red 16 green 8 blue 0
Mar  3 10:20:28 guacd-server guacd[18646]: Unable to connect to any addresses.
Mar  3 10:20:28 guacd-server guacd[18646]: Connection did not succeed
{code}

>From the guacamole log:

{code:none}
10:20:28.502 [http-bio-8081-exec-3] INFO  o.g.g.net.basic.TunnelRequestService - User "admin"
connected to connection "sftptest".
10:20:28.515 [http-bio-8081-exec-3] INFO  o.g.g.net.basic.TunnelRequestService - User "admin"
disconnected from connection "sftptest". Duration: 13 milliseconds
{code}

If the enable-sftp param is changed to false, or deleted, this connection succeeds.



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