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Posted to user@guacamole.apache.org by alipawsey <al...@live.com> on 2021/03/02 03:56:26 UTC
Occasional RDP disconnection
We have users annoyed by occasional RDP disconnections showing dialogue box
asking logout / reconnect.
No clue at the moment what could be the potential issue? Any idea?
In admin dashboard - history, I can see sessions as long as 30 sec and
remote session as ::1 !!
Username Start time Duration Connection name
Remote host
USERNAME 2021-03-02 11:10:52 16 seconds w06 ::1
Any idea what does ::1 mean?
Thanks.
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Re: Occasional RDP disconnection
Posted by Ivanmarcus <iv...@yahoo.com.INVALID>.
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 fix the then issue.
At that stage it was for a different base problem; inability to
initiatially connect and/or mixed up colours.
On 3/03/21 10:02 am, Hankins, Jonathan wrote:
> Not sure of OP's Guacamole and freerdp versions, but I have Guacamole
> 1.2.0 built (on Debian) against FreeRDP 2.0.0 and working correctly.
> At some point, Debian upgraded freerdp2 a git snapshot, and when I
> built Guacamole 1.3.0 against that, I have the frequent RDP
> disconnects. I also tried a backport of FreeRDP 2.2.0 but have the
> same problem. See: https://github.com/FreeRDP/FreeRDP/issues/6258
>
> I don't always see the error, and sometimes I see it frequently,
> immediately after connect, etc.
> If I check "Disable bitmap caching", "Disable off-screen caching" and
> "Disable glyph caching", it fixes it. I am not sure which
> option/combination fixes it -- just disabling glyph caching as
> mentioned in the FreeRDP issue I linked did NOT fix it for me.
>
> -Jonathan Hankins
>
> On Tue, Mar 2, 2021 at 1:00 PM Mike Jumper <mike.jumper@glyptodon.com
> <ma...@glyptodon.com>> wrote:
>
> On Mon, Mar 1, 2021 at 7:56 PM alipawsey <alizamani84@live.com
> <ma...@live.com>> wrote:
>
> ...
> Any idea what does ::1 mean?
>
>
> That is the IPv6 address for localhost. In this context, it
> probably means that Guacamole is behind a reverse proxy on the
> same machine and that Tomcat and/or the reverse proxy are not
> configured to pass through the IP address of the client machine on
> the public side of the proxy:
>
> http://guacamole.apache.org/doc/gug/proxying-guacamole.html#tomcat-remote-ip
>
> If the reverse proxy is configured to pass through the client IP
> address with the "X-Forwarded-For" header (and Tomcat is
> configured to trust that header from your proxy using Tomcat's
> "RemoteIpValve"), then the address shown for future connection
> attempts will be the client's IP address rather than the address
> of the proxy.
>
> Michael Jumper
> CEO, Lead Developer
> Glyptodon Inc <https://enterprise.glyptodon.com/>.
>
>
>
> --
> Jonathan Hankins
>
> Homewood City Schools
>
> W: 205-877-4548
>
> This e-mail is intended only for the recipient and may contain confidential or proprietary information. If you are not the intended recipient, the review, distribution, duplication or retention of this message and its attachments are prohibited. Please notify the sender of this error immediately by reply e-mail, and permanently delete this message and its attachments in any form in which they may have been preserved.
Re: Occasional RDP disconnection
Posted by "Hankins, Jonathan" <jh...@homewood.k12.al.us>.
Not sure of OP's Guacamole and freerdp versions, but I have Guacamole 1.2.0
built (on Debian) against FreeRDP 2.0.0 and working correctly. At some
point, Debian upgraded freerdp2 a git snapshot, and when I built Guacamole
1.3.0 against that, I have the frequent RDP disconnects. I also tried a
backport of FreeRDP 2.2.0 but have the same problem. See:
https://github.com/FreeRDP/FreeRDP/issues/6258
I don't always see the error, and sometimes I see it frequently,
immediately after connect, etc.
If I check "Disable bitmap caching", "Disable off-screen caching" and
"Disable glyph caching", it fixes it. I am not sure which
option/combination fixes it -- just disabling glyph caching as mentioned in
the FreeRDP issue I linked did NOT fix it for me.
-Jonathan Hankins
On Tue, Mar 2, 2021 at 1:00 PM Mike Jumper <mi...@glyptodon.com>
wrote:
> On Mon, Mar 1, 2021 at 7:56 PM alipawsey <al...@live.com> wrote:
>
>> ...
>> Any idea what does ::1 mean?
>>
>
> That is the IPv6 address for localhost. In this context, it probably means
> that Guacamole is behind a reverse proxy on the same machine and that
> Tomcat and/or the reverse proxy are not configured to pass through the IP
> address of the client machine on the public side of the proxy:
>
>
> http://guacamole.apache.org/doc/gug/proxying-guacamole.html#tomcat-remote-ip
>
> If the reverse proxy is configured to pass through the client IP address
> with the "X-Forwarded-For" header (and Tomcat is configured to trust that
> header from your proxy using Tomcat's "RemoteIpValve"), then the address
> shown for future connection attempts will be the client's IP address rather
> than the address of the proxy.
>
> Michael Jumper
> CEO, Lead Developer
> Glyptodon Inc <https://enterprise.glyptodon.com/>.
>
--
Jonathan Hankins
Homewood City Schools
W: 205-877-4548
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This e-mail is intended only for the recipient and may contain confidential
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Re: Occasional RDP disconnection
Posted by Mike Jumper <mi...@glyptodon.com>.
On Mon, Mar 1, 2021 at 7:56 PM alipawsey <al...@live.com> wrote:
> ...
> Any idea what does ::1 mean?
>
That is the IPv6 address for localhost. In this context, it probably means
that Guacamole is behind a reverse proxy on the same machine and that
Tomcat and/or the reverse proxy are not configured to pass through the IP
address of the client machine on the public side of the proxy:
http://guacamole.apache.org/doc/gug/proxying-guacamole.html#tomcat-remote-ip
If the reverse proxy is configured to pass through the client IP address
with the "X-Forwarded-For" header (and Tomcat is configured to trust that
header from your proxy using Tomcat's "RemoteIpValve"), then the address
shown for future connection attempts will be the client's IP address rather
than the address of the proxy.
Michael Jumper
CEO, Lead Developer
Glyptodon Inc <https://enterprise.glyptodon.com/>.
Re: Occasional RDP disconnection
Posted by Ivanmarcus <iv...@yahoo.com.INVALID>.
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 client end.
Those on wireless are generally most affected, so I encourage people to
use fixed-wire ethernet.
This may be quite different in your country, but if the server you have
Guacamole running on is recent, adequate, and doesn't suffer from issues
otherwise then you may want to look at the internet and/or client
machines as a possible source of interruption. If you can test on your
local network it may isolate whether there's an issue inside or outside
your network edge.
On 2/03/21 4:56 pm, alipawsey wrote:
> We have users annoyed by occasional RDP disconnections showing dialogue box
> asking logout / reconnect.
> No clue at the moment what could be the potential issue? Any idea?
> In admin dashboard - history, I can see sessions as long as 30 sec and
> remote session as ::1 !!
>
> Username Start time Duration Connection name
> Remote host
> USERNAME 2021-03-02 11:10:52 16 seconds w06 ::1
>
> Any idea what does ::1 mean?
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Re: Occasional RDP disconnection
Posted by sciUser <sh...@securitycentric.net>.
What is your virtual platform and your landing VM version?
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