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From austin wonderly <>
Subject Re: What could be causing guacamole to kill my server
Date Thu, 07 Sep 2017 02:33:20 GMT
Here are some screenshots of what I get when accessing guacamole:

Login screen comes up properly:
SSH terminal shows up after I've authenticated, at which point the system
immediately becomes unresponsive:


On Wed, Sep 6, 2017 at 10:25 PM, austin wonderly <>

> thanks for your help with this.
> I'm going to try installing guacamole manually tomorrow. Regarding the
> responsiveness of the server, when this issue occurs, the server will stop
> responding to pings, the console will become unresponsive, and esxi will
> report a spike in CPU usage for the host. Guacamole's interface will no
> longer respond either due to the loss of network connectivity.
> On Wed, Sep 6, 2017 at 10:20 PM, Mike Jumper <>
> wrote:
>> On Wed, Sep 6, 2017 at 7:13 PM, austin wonderly <>
>> wrote:
>>> hello,
>>> I'm trying to set up guacamole to allow html5 ssh access to my server.
>>> so far I've done the following:
>>> 1. apt-get install guacamole
>> Though this is unlikely to be related to your problem, I would recommend
>> installing a recent release of Guacamole following the manual, rather than
>> installing packages via apt-get.
>>> ...
>>> 3. Restarted Guacd and tomcat
>>> After doing all of this, I'll be able to login to guacamole's web
>>> interface and get presented with "Login:" on guacamole's web terminal
>>> interface, but then my debian installation (clean install aside from
>>> guacamole, open-vm-tools, and ssh) just becomes completely unresponsive and
>>> won't respond again until I perform a hard reboot. I'm running Linux
>>> kingston 4.9.0-3-amd64 #1 SMP Debian 4.9.30-2+deb9u2 (2017-06-26) x86_64
>>> GNU/Linux.
>> Does the lack of response correlate to logging in to Guacamole?
>> When the system is unresponsive, does the Guacamole interface respond
>> (page can be reloaded, you can log out / back in successfully, etc.)?
>> To what degree is the system unresponsive? Does the server respond to
>> input via a hardware keyboard? Does the server respond to pings?
>> Is there something in my configuration that's incorrect? I checked syslog
>>> and catalina.log, but they both just stop logging at the same time that my
>>> system becomes unresponsive.
>> It's unlikely that anything in Guacamole could cause your system to go
>> entirely down like this. Since "unresponsive" can mean many things, I think
>> the first step here is to determine exactly what condition occurs on the
>> server to result in that behavior.
>> - Mike

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