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Posted to user@guacamole.apache.org by Adrian Owen <ad...@eesm.com> on 2021/05/17 11:17:57 UTC
RDP The remote desktop server is unavailable
Hi,
1.2 Guacamole.
Setup: Both tests from same browser on same workstation.
Connection: Active Directory account RDP session to Windows 7 workstation.
Pre-test: Mstsc RDP connection as Normal Domain Account is OK.
1) Normal Domain Account - member of local "Remote Desktop Users" on workstation
They connect OK. But then popup "The remote desktop server is unavailable" - then reconnect and popup over and over.
System is unusable
2) Active Directory Domain Admin account RDP session to the same Windows 7 workstation.
No problem. Session is fine.
Has anyone experienced any similar Guacamole RDP issue. And how to resolve?
Many thanks, Adrian
Re: RDP The remote desktop server is unavailable
Posted by Nick Couchman <vn...@apache.org>.
On Wed, May 26, 2021 at 9:36 AM Adrian Owen <ad...@eesm.com> wrote:
> Hi Nick,
>
>
>
> We disabled glyph caching but user disconnects continue.
>
>
According to the log, the disconnect is because someone else logged onto
the server:
May 24 09:59:33 server10 guacd[19459]:
ERRINFO_DISCONNECTED_BY_OTHER_CONNECTION (0x00000005):Another user
connected to the server, forcing the disconnection of the current
connection.
May 24 09:59:34 server10 guacd[19459]: RDP server closed connection:
Disconnected by other connection.
May 24 09:59:34 server10 guacd[19459]: Disconnect reason code: 0x5.
This is completely outside of Guacamole - another user is connecting to the
RDP server and forcibly logging off. There are two scenarios where this is
common:
1) Users are sharing a common username and password, but the account is
only allowed 1 session. When a user with the same username and password
logs in, the first user will be disconnected.
2) Servers where the number of RDP connections is limited - as in the case
of either Windows Workstation (XP, Vista, 7, 8, and 10), where only a
single session is allowed, or in the case of Windows Server where the RDS
role is not installed and RDP is limited to 2 sessions. In both of these
cases, if an additional user beyond the limit of the server connects, the
first user(s) can be forcibly disconnected.
>
> We set verbose Guacamole logging
>
>
>
> Grep single guacd user process 19495 from daemon.log and extract file is
> attached (large)
>
>
>
> At 09:59:03 heavy lag begins. User eventually click Reconnect, killing
> process.
>
>
>
We vmstat but guacamole server only 10% capacity whole time.
>
>
>
>
>
> What can cause lagging?
>
>
>
If you're seeing heavy lag, and you've verified that resources on the
Guacamole Server aren't the issue (both guacd and Tomcat, if they're
running on separate servers), then you need to look at the network, as
that's the other place where lag will occur. This lag appears to be between
the user's browser (the Web Application) and guacd, via the Tomcat tunnel,
and not between guacd and the RDP server.
-Nick
RE: RDP The remote desktop server is unavailable
Posted by Adrian Owen <ad...@eesm.com>.
Hi Nick,
We disabled glyph caching but user disconnects continue.
We set verbose Guacamole logging
Grep single guacd user process 19495 from daemon.log and extract file is attached (large)
At 09:59:03 heavy lag begins. User eventually click Reconnect, killing process.
We vmstat but guacamole server only 10% capacity whole time.
What can cause lagging?
Many thanks, Adrian
From: Adrian Owen [mailto:adrian.owen@eesm.com]
Sent: 17 May 2021 13:29
To: user@guacamole.apache.org
Subject: RE: RDP The remote desktop server is unavailable
Thanks Nick,
I’ll give it a go, and let you know.
Adrian
From: Nick Couchman [mailto:vnick@apache.org]
Sent: 17 May 2021 12:54
To: user@guacamole.apache.org<ma...@guacamole.apache.org>
Subject: Re: RDP The remote desktop server is unavailable
On Mon, May 17, 2021 at 7:18 AM Adrian Owen <ad...@eesm.com>> wrote:
Hi,
1.2 Guacamole.
Setup: Both tests from same browser on same workstation.
Connection: Active Directory account RDP session to Windows 7 workstation.
Pre-test: Mstsc RDP connection as Normal Domain Account is OK.
1) Normal Domain Account – member of local “Remote Desktop Users” on workstation
They connect OK. But then popup “The remote desktop server is unavailable” – then reconnect and popup over and over.
System is unusable
2) Active Directory Domain Admin account RDP session to the same Windows 7 workstation.
No problem. Session is fine.
Has anyone experienced any similar Guacamole RDP issue. And how to resolve?
Can you try to disable Glyph Caching on the connection and see if that resolves the issue?
-Nick
RE: RDP The remote desktop server is unavailable
Posted by Adrian Owen <ad...@eesm.com>.
Thanks Nick,
I’ll give it a go, and let you know.
Adrian
From: Nick Couchman [mailto:vnick@apache.org]
Sent: 17 May 2021 12:54
To: user@guacamole.apache.org
Subject: Re: RDP The remote desktop server is unavailable
On Mon, May 17, 2021 at 7:18 AM Adrian Owen <ad...@eesm.com>> wrote:
Hi,
1.2 Guacamole.
Setup: Both tests from same browser on same workstation.
Connection: Active Directory account RDP session to Windows 7 workstation.
Pre-test: Mstsc RDP connection as Normal Domain Account is OK.
1) Normal Domain Account – member of local “Remote Desktop Users” on workstation
They connect OK. But then popup “The remote desktop server is unavailable” – then reconnect and popup over and over.
System is unusable
2) Active Directory Domain Admin account RDP session to the same Windows 7 workstation.
No problem. Session is fine.
Has anyone experienced any similar Guacamole RDP issue. And how to resolve?
Can you try to disable Glyph Caching on the connection and see if that resolves the issue?
-Nick
Re: RDP The remote desktop server is unavailable
Posted by Nick Couchman <vn...@apache.org>.
On Mon, May 17, 2021 at 7:18 AM Adrian Owen <ad...@eesm.com> wrote:
> Hi,
>
>
>
> 1.2 Guacamole.
>
>
>
> Setup: Both tests from same browser on same workstation.
>
> Connection: Active Directory account RDP session to Windows 7 workstation.
>
> Pre-test: Mstsc RDP connection as Normal Domain Account is OK.
>
>
>
>
>
> 1) Normal Domain Account – member of local “Remote Desktop Users” on
> workstation
>
>
>
> They connect OK. But then popup “The remote desktop server is
> unavailable” – then reconnect and popup over and over.
>
>
>
> System is unusable
>
>
>
>
>
> 2) Active Directory Domain Admin account RDP session to the same
> Windows 7 workstation.
>
>
>
> No problem. Session is fine.
>
>
>
>
>
>
>
> Has anyone experienced any similar Guacamole RDP issue. And how to resolve?
>
Can you try to disable Glyph Caching on the connection and see if that
resolves the issue?
-Nick
>