[jira] [Created] (GUACAMOLE-444) SSH limits key presses to one character

["Alexander Craggs (JIRA)" <ji...@apache.org>]

Alexander Craggs created GUACAMOLE-444:
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             Summary: SSH limits key presses to one character
                 Key: GUACAMOLE-444
                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-444
             Project: Guacamole
          Issue Type: Bug
          Components: guacamole
    Affects Versions: 0.8.4
         Environment: Ubuntu, 16.04.
            Reporter: Alexander Craggs


When running an SSH connection through the Tomcat Apt installation, I am able to type a single key and then no more keys are registered.

I can see no error messages in the journal file:

{code:log}
popey@vps411006:~$ sudo service guacd status
● guacd.service - LSB: Guacamole proxy daemon
   Loaded: loaded (/etc/init.d/guacd; bad; vendor preset: enabled)
   Active: active (running) since Sun 2017-11-26 05:18:35 CET; 1min 35s ago
     Docs: man:systemd-sysv-generator(8)
  Process: 25011 ExecStop=/etc/init.d/guacd stop (code=exited, status=0/SUCCESS)
  Process: 25118 ExecStart=/etc/init.d/guacd start (code=exited, status=0/SUCCESS)
    Tasks: 6
   Memory: 6.3M
      CPU: 87ms
   CGroup: /system.slice/guacd.service
           ├─25132 /usr/sbin/guacd -p /var/run/guacd/guacd.pid
           └─25134 /usr/sbin/guacd -p /var/run/guacd/guacd.pid

Nov 26 05:18:35 vps411006 guacd[25130]: Unable to bind socket to host ::1, port 4822: Address family not supported by protocol
Nov 26 05:18:35 vps411006 guacd[25130]: Successfully bound socket to host 127.0.0.1, port 4822
Nov 26 05:18:35 vps411006 guacd[25130]: Exiting and passing control to PID 25131
Nov 26 05:18:35 vps411006 guacd[25118]:    ...done.
Nov 26 05:18:35 vps411006 systemd[1]: Started LSB: Guacamole proxy daemon.
Nov 26 05:18:35 vps411006 guacd[25131]: Exiting and passing control to PID 25132
Nov 26 05:18:35 vps411006 guacd[25132]: Listening on host 127.0.0.1, port 4822
Nov 26 05:18:43 vps411006 guacd[25134]: Protocol "ssh" selected
Nov 26 05:18:43 vps411006 guacd[25134]: Starting client
Nov 26 05:18:46 vps411006 guacd[25134]: SSH connection successful.
{code}

Nor am I able to refresh the webpage to type another key.  The session appears to be lost and a new one started.  If I type before the page fully loads, I am able to type as many keys as I like before the prompt appears.  I am also able to press enter after that as many times as I wish, but once I press any other character it doesn't display, and enter stops functioning.

The SSH server itself appears to be functioning normally.  It is a vanilla system I've been using for a year to no issue, the ~/.bashrc file is default, the only line in ~/.bash_profile is "archey".

Tailing all files within /var/log/tomcat8 also doesn't seem to be useful in the least - https://hastebin.com/osazijutel.hs

Kinda at a loose end here, no idea how to even start debugging it (only been using it for a few minutes).  The installation was using the default method for "Debian and Ubuntu", using the package repository "guacamole/stable".




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