Harry,
I'd start debugging here:
Failed to initialized GnuTLS: Error in public key generation
Now, without knowing more about your setup I wonder if the issue could
be related to this?:
https://issues.apache.org/jira/browse/GUACAMOLE-1921
It's been a while since I used VNC with Guacamole,
Stephan,
Having been around here for a while I'd be very surprised to find code
contributions simply 'ignored'. If you look at Guacamole's development
history I think you'd see that contributions are welcomed, and where
they address a need and/or fit the project well they are incorporated.
Robert,
You might want to look to the links that Nick posted, they will give you
an idea of where progress is on this matter.
Also, you are always welcome to contribute, particularly if there's an
issue you see would assist the project as a whole in addition to your
operation.
On 21/04/24
I have to confess I've not used the recording facility myself, however
to the best of my knowledge altering the playback speed not presently a
feature.
That said I think you could encode and make the recordings accessible to
be played in a dedicated player that would allow speed variation.
Steven,
It would help people to assist you if you were able to post some detail
on your setup including the OS in use, how you've got Guacamole
installed, and in particular log data around when you have the issue.
I don't run load balancing myself, so it probably won't be me responding
when
as expected then it *could* be that you are
one of those affected by this issue. At this point there is a thought it
may be related to FreeRDP and some aspect of 1.5.4, but it's yet to be
determined for sure.
On 20/02/24 00:12, Viji Sankar wrote:
Hi Ivanmarcus,
We have experienced, VM
Andrea,
It's getting late here, so I've not a lot of time now, sorry.
However if you check out
https://guacamole.apache.org/doc/gug/jdbc-auth.html it should explain
what you need to do, and where you need to place the relevant files.
Also, while it's been a some time since I installed
experiencing, or something else.
On 19/02/24 21:53, Viji Sankar wrote:
Hi Ivanmarcus,
Which recent stable version we can install to avoid our connection issues?
Regards,
Viji S
From: Ivanmarcus
Sent: Monday, February 19, 2024 2:11:44 PM
To: user@guacamole.apache.org
Viji,
There is a problem that *some* people are experiencing with 1.5.4 when a
certain number of connections have occurred. It may be that you're,
unfortunately, one of those people.
This particular issue has been actively discussed and worked on, it's
possibly related to FreeRDP but is yet
Andrea,
If you want to be able to use the GUI as you describe then you'll need
to use a database, rather than the XML config.
You don't say what distribution you're using, but I have previously
described some steps to install Guacamole with or without database for
Ubuntu 22.04. This was
Andrea,
Mike means that you will need to be looking at, and blocking if
necessary, unique public IP addresses.
Most likely private addresses (eg. 192.168.x.x) would normally be
'trusted', or in some cases not unique, so there's no point in having
having fail2ban analyse them.
Also,
Andrea,
This is not presently possible with Guacamole.
It has been requested in the past, and it may become a feature in the
future at some stage, but it's unlikely to be any time soon.
On 19/02/24 20:03, Andrea Miconi wrote:
I have a small server with some "web applications" installed in
Harry,
Thanks for updating us on the 'fix', could be useful for anyone else
with the same issue.
Regarding your login issue, there are two or three similar issues from
the past that may provide useful fault-finding detail for you to follow:
Harry,
It's been a while since I installed Guacamole on anything but a
Debian-based system, however you appear to have done exactly as I do
(the only exception is the Tomcat directory name - 'tomcat9' in my case).
So, from my perspective that part of your install should work, however I
Suggest you check your logfiles to see if they will give you further
information.
It's been a while since I installed Guacamole on Debian but syslog,
catalina.out and possibly the MySQL logs may be of use.
Also, did you 'ldconfig' ?
On 8/01/24 23:20, Guillaume CHOLLIER wrote:
Hello all,
Brian,
The WOL function is being worked on presently, and may well be updated
in the next release of Guacamole.
That said, to the best of my recollection, there's not been an issue
with it inhibiting connections quite as I understand your system setup -
particularly when it's been operating
Correct. If you want to view details about the different releases you
can do that here:
https://guacamole.apache.org/releases/
1.0.0 was the last change to the database schema, and the notes for
1.5.3 say that "The 1.5.3 release is compatible with older 1.x
components" (albeit with the
You should be able to directly upgrade. Make sure that you don't leave
any old .war files, and clear your browser cache before logging in after
the upgrade.
As always it would be advisable to backup your installation before
commencing the upgrade, just in case an issue arises.
On 14/11/23
As Mark Li has also suggested my post was really just to give you some
pointers as to how to get a working system, and from there you could
modify it as you wanted.
To answer some of your questions:
I haven't used PostGres with Guacamole myself, so am unable to directly
comment on
It's difficult to provide assistance without knowing more about your
environment, but it appears you're using Ubuntu as your OS?
Unless you've got a specific need you shouldn't need to write your own
daemons, nor install maven.
In case it helps, here are some notes on a simple step-by-step
Julien,
Thanks for taking the time to post this in detail.
As performance and hardware requirements are a question that arises from
time to time such practical information will be very useful for some.
On 19/10/23 23:35, Julien Lejeune wrote:
Hi all!
It will probably be my last update on
Kamal,
See the information here on how to unsubscribe:
https://guacamole.apache.org/support/
On 9/10/23 08:00, Kamal Ezzaki wrote:
Pleasd remove me from the this email list
-
To unsubscribe, e-mail:
As far as I'm aware there isn't any work being done on this presently,
however it was discussed back in 2020. The following link may be of some
interest:
https://lists.apache.org/thread/5pkbqsyks4g1vdh7vnxv20lzr11jzvnm
-
To
Mark,
You may find something useful in this thread:
https://lists.apache.org/thread/3wpd0y60r0jpjosp19mls1czlfzo877x
Lorenzo's contribution in particular could be worth pursuing?
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With ignore certificate set, and either nothing or 'any' in security
mode, have you tried with 'disable authentication' checked?
Also, when fault-finding, I suggest you don't have anything else set, at
least initially, as I've sometimes found that can adversely affect the
outcome. I include
Sean,
Thanks for the heads-up.
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Thanks Robert, FWIW I was responding to your earlier post which said:
"If I can figure out how to get tomcat to pass the IP to guacamole so
when someone logs into a server via guacamole it correctly logs the
originator IP and failed logins that will work also but I am utterly
unfamiliar with
Robert,
Just in case it helps; the connecting IP and login attempts are
typically recorded in the Tomcat log. An example here is from a test
Ubuntu 22.04 with Tomcat 9, the logfile is located at
/var/log/tomcat9/catalina.out and you'll see I've tried twice, once with
incorrect p/w, then the
Jay,
You can read about it here:
https://issues.apache.org/jira/projects/GUACAMOLE/issues/GUACAMOLE-288?
This has been discussed from time to time, and I think it will progress
in time. I don't fully recall now but I also have an idea that someone
has produced a working implementation as
Robert,
I thought it was decent of Lorenzo to respond and point out his solution
and share the code...
... and having had a quick look it seems fine to me. Perhaps I've not
found the section you're referring to, but if there is an issue maybe
you could contribute a PR to him via github? Not
Robert,
These docs are specific to the version number that appears in the URL
(0.8.3 & 0.9.7 in the case of those you posted).
Most people will (should!) be using a later version by now and, as Nick
has effectively noted, the noauth option is not included in the
documentation relevant for
Robert,
The noauth extension was deprecated around 0.9.14, and is not available
from 1.0.0.
The hack you mentioned may be this one?:
https://stackoverflow.com/questions/63051901/bypassing-the-login-page-in-guacamole-1-2-0
however it seems questionable to me.
Otherwise if you really need
Harry,
Given you're testing this, can you briefly expose Tomcat directly to
your LAN in order to see if things are working correctly from there?
It seems to me that eliminating, or determining, the Apache proxy (or
something else) as the cause of the issue would be a good start.
Could you let us know how you have installed Guacamole, and on what
distribution? Log file information at the time of the problem is also
very useful.
If perchance you are using Docker you may have run into this issue:
https://issues.apache.org/jira/browse/GUACAMOLE-1813
This thread also
I'm reluctant to provide advice on the docker implementation; I install
natively and an earlier faux pas suggests I know nothing about docker :)
However if it were me I'd start by looking at the 'fixed' script and
would probably just modify the existing script as needed:
Oops, somehow got pushed sideways into the wrong thread (Thanks for the
headsup Mike). Here is the intended post for this thread:
Tifaine,
Nick's information re setting the absolute path is important, but as
you've now told us you're using the docker images there is possibly
another issue
Tifaine,
Nick's information re setting the absolute path is important, but as
you've now told us you're using the docker images there is possibly
another issue that could be affecting you.
This was discussed by Nick in one of the archived threads I mentioned
: Ivanmarcus
Envoyé : mardi 4 juillet 2023 10:11
À : user@guacamole.apache.org
Objet : Re: Record Screen
Bonjour,
In order to use other than the default path you will need to configure it in
the guacamole.properties file.
You don't say what your distribution is but detail on guacamole.properties
Bonjour,
In order to use other than the default path you will need to configure
it in the guacamole.properties file.
You don't say what your distribution is but detail on
guacamole.properties (including typical location etc) may be found here:
with their issue, and while it may not
necessarily fix yours there may be some possibly useful discussion prior?
On 3/07/23 16:32, Triveni K wrote:
Hi Ivanmarcus,
I am not getting any error messages in the Gucamole client.
But at the guacd I am getting below message.
Guacamole connection closes during
Triveni,
Although I don't use them myself I can't recall any specific issues with
the docker images that replicate what you're experiencing; my feeling is
that it's more likely to be something with your particular setup.
If I were to hazard a guess it sounds not unlike an IP address
Patrick,
In order for anyone to help you it would be appreciated if you could
include relevant output from your log files at the time of connections,
the OS you're using, and what you did to upgrade.
Thanks.
On 7/06/23 16:35, Geschwentner, Patrick wrote:
Dear Ladies and Gentlemen!
I
Thanks for following up, it's always useful to know the 'fix'.
On 7/06/23 03:09, Pol wrote:
Thanks,
The issue has been fixed. The issue was not from `ldconfig` or anything
like that but merely by a wrong assumption I was doing about Guacamole.
I was thinking from the beginning that Guacamole
Have you seen this?:
https://guacamole.apache.org/doc/0.9.7/gug/proxying-guacamole.html
I also realise you've specifically asked about Apache HTTPS proxy. I've
not done this, so cannot comment directly, however you may find some
information by searching the archives, for example:
One easy way to do this, but keeping everything else intact, would be to
put a suitable entry into an index.html file. For example:
http://myguacamole.com:8080/guacamole'" />
On 29/04/23 09:04, André R. Basel wrote:
Where do I go to change things so that I can browse to
Thanks for following up with the fix, good information for anyone else
coming here with a similar issue.
On 28/03/23 10:12, Justin VanAbrahams wrote:
Well, I’ve solved the issue. It was an apache problem… I fat-fingered
the directives.
[snip]
[snip]
Without a lot more information it's difficult to suggest why you see
such a change. It's quite possible system/version upgrades etc will make
a difference, as will the number of connections (ie. I'm not sure if the
memory use is totally linear and would scale as such).
From a design
Linux sysadmin tasks.
What do the Gurus recommend:
1. Create a bug to add it to the documentation.
1.a. I may even try to learn how to document it myself if that is even
possible.
2. Send here an email with the step by step instructions for posterity
and easy to search.
Thanks again @ivan
ons on this list on how to
configure the daemon to run as a different user but I could not
find the instructions I believe I saw a few weeks ago on this list.
* Looking around past posts, I found this from @ivanmarcus on the list:
o https://lists.apache.org/thread/fhtrvf0vy
In case it's useful to anyone here's what I did to get Guacamole 1.5.0
running with Tomcat9 on a fresh Ubuntu 22.04 VM.
Essentially this is similar to my previous notes for earlier versions of
Guacamole and Ubuntu, but with necessary package updates etc.
I should comment that previously
The list archives that Nick's mentioned are here:
https://lists.apache.org/list.html?user@guacamole.apache.org
I suspect these may be the closest to the sort of thing you're looking for?
On 25/11/22 12:24, Nick Couchman wrote:
On Thu, Nov 24, 2022 at 5:55 PM Lockhart, Roland
I may be misundertanding your issue, however you'll need to make sure
that the guacd user has access/permissions for the directory you're sharing.
If that's not the issue then log information could be useful to properly
determine your problem. Depending upon your distribution/setup that
could
Robert,
Thanks, your second email hadn't arrived when I was typing my reply, but
that's useful to know.
WRT catalina_home or catalina_base, people more eloquent than me have
explained that here:
https://stackoverflow.com/questions/3090398/tomcat-catalina-base-and-catalina-home-variables
Robert,
You don't say what distribution you are using, however below is a
step-by-step install of Guacamole 1.4 using Ubuntu Server 20.04 and
Tomcat 9. You will see where I've put the .war file (and the symlink to
webapps).
This uses MySQL for user data etc, the user mapping file is
Brian,
Just to confirm what Mike said - your message of Friday 1st July
@1253hrs remains in the archives
(https://lists.apache.org/list?user@guacamole.apache.org:2022-6).
It's unfortunate no-one was able to answer you at the time, possibly
many of us don't have anything with ChromeOS, but
Sean,
Thanks for returning with the fix, could be useful to someone coming
here in the future...
On 30/06/22 15:10, Sean Hulbert wrote:
Hello,
OK found it, if you want windows to prompt with usernames, set your
guacamole connection template with no username and password in the field.
Go
Darren,
I'm far from a Docker expert but that command string looks corrupted
from where I'm sitting?
As I see it the system believes there's a container running with the
same name you're trying to run, and it's giving the container ID.
You can use 'docker images' to check that out (ie.
Timothy,
I had a quick look at that site. While I can't comment much on the
procedure for RHEL (I generally use Ubuntu) I see they appear to be
advising an earlier version of Guacamole than is current.
I suggest you check this out, it's the official documentation for the
current version
with:
apt-get install guacamole-tomcat
I don't know why I can't upgrade it in the same way...
Anyway I think I wil start again from scratch, wish for luck.
Il 30/05/2022 03:01, Ivanmarcus ha scritto:
Cristian,
You didn't mention the current version of Ubuntu you are using, or are
wanting to upgrade
Roland,
That's quite an old version of Guacamole, there have been significant
changes that will require an update to your database schema (from 0.9.14
to 1.0.0).
For your information here are the relevant announcements on versions
later than what you're currently using:
Cristian,
You didn't mention the current version of Ubuntu you are using, or are
wanting to upgrade to?
As Nick has said there may be no prebuilt packages so you'll need to
manually upgrade Guacamole. If it helps I can write out a series of
steps for installation of Guacamole 1.4 on Ubuntu
It's unclear to me if Guacamole operates ok should you restart guacd
once the Pi has booted?
If so then a simple solution might be to run a cron reboot command to
restart guacd a few seconds after boot. Say "@reboot sleep 30 &&
/path/to/guacd"
I realise this isn't necessarily _fixing_ the
Tom,
You've not given a lot of detail about your environment, however it's
possible that one or more system/container auto-updated something that
has resulted in what you see here.
If it were me I'd have a look to see what updates have occurred between
the time when the system was working,
https://lists.apache.org/thread/b7n7x5vr3j5cd370nrrlrb10qhlw00h3
<https://lists.apache.org/thread/b7n7x5vr3j5cd370nrrlrb10qhlw00h3>
Tushar
On Wed, Mar 2, 2022 at 2:50 AM Ivanmarcus
wrote:
Tushar,
I've not tried this specifically, however I wonder if you were to set
api-ses
Tushar,
I've not tried this specifically, however I wonder if you were to set
api-session-timeout to 15 in guacamole.properties whether that would
address your issue?
On 2/03/22 7:39 am, Tushar Sheth wrote:
Hi- we set our VNC server (TigerVNC) to disconnect a session after a
certain amount
Austin,
The problem _may_ be to do with the RealVNC auth you have set.
I'm unable to help with specific macOS questions, however - as Nick has
commented recently - RealVNC does have mechanisms that 'standard' VNC
does not. This series of posts may be of some use in explaining that:
Takuya,
Mike's rule of thumb has been 1 core and 2GB memory for ~25 users.
You seem to have followed that well, although I don't recall if Mike
differentiated with regard to where the memory was allocated (I see you
have specific settings for Tomcat).
I've never had need, nor tried, the
ll some possible issue with graphics if a
>>proxy is in use,
I thought about that at first but the same guacamole setup is being able
to connect to a win10 box, 2008r2 box and a ubuntu xrdp box... my
feeling is that the client is able to render.
thanks,
Fernando
El mié, 12 ene 2022 a las 11
to connect so I
can "set them up" in guacamole?
Thanks!
Fernando
El mié, 12 ene 2022 a las 3:07, Ivanmarcus
() escribió:
Fernando,
I have zero experience of your remote environment, however perhaps you
could try initially connecting direct with Remmina/FreeRDP (pref
Fernando,
I have zero experience of your remote environment, however perhaps you
could try initially connecting direct with Remmina/FreeRDP (pref the
same version as you're using for Guacamole)?
If that works then try Guacamole again, specifically disabling all the
caching options. It may
Timo,
If I understand your system correctly I suggest you're missing out on
the full benefits of Guacamole.
My experience of VNC direct (which is what I take you to be doing) is
that it can be quite slow, especially with limited bandwidth. Given the
same bandwidth capacity I have found
irectory [/var/lib/tomcat9/webapps/ROOT] has finished in
[1,144] ms
02-Dec-2021 18:54:02.368 INFO [main]
org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler
["http-nio-8080"]
02-Dec-2021 18:54:02.403 INFO [main]
org.apache.catalina.startup.Catalina.start Server st
Vincent,
We'll probably need more information than this to be able to assist you.
For instance:
The version of Guacamole you've installed.
The authentication method you chose (are you using database auth?)
How you installed it (the steps you used, did you use someone's script?)
Also, it looks
Thanks for the information.
I'm no expert on M$ licensing, it seems somewhat of a black art, but I
don't see why you'd need additional licenses. As far as Windows is
concerned Guacamole just connects via standard RDP on (usually) 3389.
Unfortunately I'm not in a position to replicate your
Rasmus,
Yes, you can share connections with Guacamole.
Please read here (particularly towards the end):
https://guacamole.apache.org/doc/gug/administration.html
As I recall admin users will automatically have access to a users
session. If you're an admin user you could check that this works
Hanadi,
It would be useful to tell us what the message actually says first.
A 'blue screen' does sound like a Windows issue, the content of the
message is likely to assist in determining that.
In addition to that the Guacamole log files will be useful, from around
the disconnection time -
Just to followup Mike's comments with an 'real world' example.
For some years I've supported an installation that has had upwards of
100 concurrent users. This was done via a single VM with 4 cores
allocated and (I think) 12GB RAM, there was no proxy server involved.
There have been
to identify who deleted the connection from a single log?
2021年10月6日(水) 19:02 Ivanmarcus :
Depending upon your distribution this *could* be seen in
/var/log/syslog, or possibly /var/log/tomcatx/catalina.out (where x =
tomcat version number).
On 6/10/21 7:20 pm, takuya morita wrote
Depending upon your distribution this *could* be seen in
/var/log/syslog, or possibly /var/log/tomcatx/catalina.out (where x =
tomcat version number).
On 6/10/21 7:20 pm, takuya morita wrote:
Hi, I am Takuya.
Where can I see the history or log of creating and deleting connections?
t 16, 2021, Ivanmarcus wrote:
Great, that's made it a bit easier to fault-find.
Unfortunately I'm not a Docker expert, and have never had anything
to do with LXD, so I'd treat anything I say from here with suspicion!
In the interests of keeping things simple, I've tended to
like this:
Guac on Docker ==> Docker Bridge ==> Host Network ==> LXD Bridge ==> cn1?
~ML
On Aug 15, 2021, 8:24 PM -0400, Ivanmarcus
, wrote:
Matthew,
There could be a few reasons for this issue, but in fault-finding I
guess I'd start with first trying a direct RDP connection to cn1
Matthew,
There could be a few reasons for this issue, but in fault-finding I
guess I'd start with first trying a direct RDP connection to cn1 (ie.
not via Guacamole).
Not sure if you're using a Linux or Win machine, but I find Remmina is a
good Linux tool for testing RDP and VNC
2. How do I paste into an ssh session?
(1) Copy the text on the local machine
(2) CTRL-ALT-SHIFT at the Guacamole screen
(3) Paste into the text window
(4) CTRL-ALT-SHIFT again to hide the window
(5) Right-click into the SSH session
Should do it?
Your email has made it to the list ok.
I've just been going through the past few days of questions and see an
earlier one from you.
It's not entirely clear to me what it is you're wanting to do, nor that
I'd be able to help, but perhaps if you were to provide a complete set
of steps it
n Sun, Jul 25, 2021 at 4:16 AM Ivanmarcus
mailto:ivanmar...@yahoo.com.invalid>>
wrote:
Sorry to hear this, although I have suffered (admittedly not entirely
Nabble's fault) with the list emails being spammed - one reason
why I've
been quiet recently.
In any event I gue
Sorry to hear this, although I have suffered (admittedly not entirely
Nabble's fault) with the list emails being spammed - one reason why I've
been quiet recently.
In any event I guess it would be good to at least try and keep the forum
archive if possible (I find it useful to search when
Jim,
I assume it's actually working?
At info/warning level I tend not to get to bothered about such log
messages, indeed when I looked for info the (admittedly odd)
[com.google.inject.internal.util.$Finalizer] entry the data I found
simply said 'it could be safely ignored'. However others
Stefan,
What happens if you use a filename less than or equal to 8.3 (eg.
'dltwo.txt')?
On 19/04/21 10:45 am, Stefan Bogdan Cimpeanu wrote:
Hello,
I think you've heard me on this list several times about some unreliable
behaviour of the mapped drives.
One of the most "blocking" issues I
Excellent, thanks for the feedback.
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ivanmarcus wrote
Tom,
Please try disabling all caching in Guacamole (eg. glyph, off-screen,
bitmap) for that connection and try again.
Some people seem to get by just disabling glyph caching, but I've tended
to do all three with good success.
Great! Could you tell me how to do that for all servers
Tom,
Please try disabling all caching in Guacamole (eg. glyph, off-screen,
bitmap) for that connection and try again.
Some people seem to get by just disabling glyph caching, but I've tended
to do all three with good success.
On 16/04/21 12:57 am, Blackula wrote:
Good afternoon! I have
It would be useful for those who may be able to help you if you could
include the version of Guacamole/FreeRDP you're using, and how they were
installed?
Also, you may want to try clearing any browser cache prior to trying
another connect, sometimes this can cause such issues - I often use
Xuo,
I'm not able to replicate the problem here (I don't use those
distributions) but looking at the error log from the pc, and with a
little searching you might want to consider this information:
Xuo,
I'm not familiar with the distributions you mention, however there have
been some issues with SSH in the past which have tended to revolve
around the version of libssh2 in use, and/or the private key format.
It may be that this post could give you some ideas to consider?:
Jonathan,
That's useful information, thanks.
I too have tended to disable all three cache options, with seemingly
little impact to users. It's a while ago now that I first did this, so
can't be certain, but I'm fairly sure it was the same for me in that
just disabling glyph caching didn't
I can't help with the connection name, but it would be useful for anyone
helping you to know what version of Guacamole you're using, and what the
log data says?
Here I have found disconnections are almost always a result of internet
issues between the client and Guacamole - quite often at the
Thanks for posting your solution, this may well help others in the future.
On 18/02/21 9:35 pm, Pablo Uribe Bastero wrote:
Hi,
I have been able to solve my issues following the workarounds
mentioned in this two different issues:
https://github.com/FreeRDP/FreeRDP/issues/5548
Pablo,
My apologies for not being more specific, but other detail such as
Windows version, connection configuration and so on would have been
useful too. Also, is it just one machine that is a problem and/or do you
have others that work ok?
That said, if I understand you correctly, you are
Actually for those trying to help you the Windows version _is_ relevant.
As I understand it you have an unspecified number of machines you're
trying to connect to, at least one of which is Windows server 2019, and
which is giving you issues when attempting a connect to it via Guacamole?
You
I can't claim to have done a lot of testing to determine what it 'best'
(it's probably quite subjective anyway), however I use X11VNC on my own
installation with reasonable results.
I've never tried file transfer (have a Nextcloud for that), nor audio,
but it works ok presenting me with my
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