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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