Workstation logs:

> Aug 30 15:20:23 warehouse-inventory gnome-remote-de[1507]: [RDP.CLIPRDR] 
> Relieving CLIPRDR filename restriction
> Aug 30 15:20:23 warehouse-inventory gnome-remote-de[1507]: [RDP.CLIPRDR] 
> Client capabilities: long format names
> Aug 30 15:20:23 warehouse-inventory gnome-remote-de[1507]: [RDP.RDPGFX] 
> CapsAdvertise: Accepting capability set with version RDPGFX_CAPVERSION_107, 
> Client cap flags: H264 (AVC444): false, H264 (AVC420): false
> Aug 30 15:20:23 warehouse-inventory gnome-remote-de[1507]: 
> [RDP.AUDIO_PLAYBACK] Client Formats: [AAC: false, Opus: true, PCM: true]
> Aug 30 15:20:46 warehouse-inventory sudo[8377]: sharpvue : TTY=pts/0 ; 
> PWD=/home/sharpvue ; USER=root ; COMMAND=/usr/bin/journalctl -f
> Aug 30 15:20:46 warehouse-inventory sudo[8377]: pam_unix(sudo:session): 
> session opened for user root(uid=0) by sharpvue(uid=1000)
> Aug 30 15:20:52 warehouse-inventory gnome-remote-de[1507]: [RDP] Client did 
> not advertise support for the Graphics Pipeline, closing connection
> Aug 30 15:20:52 warehouse-inventory gnome-remote-de[1507]: [RDP] Network or 
> intentional disconnect, stopping session
> Aug 30 15:20:52 warehouse-inventory gnome-remote-desktop-daemon[1507]: 
> [15:20:52:423] [1507:000020c1] [ERROR][com.freerdp.core.peer] - 
> [rdp_peer_handle_state_demand_active]: 
> [CONNECTION_STATE_CAPABILITIES_EXCHANGE_DEMAND_ACTIVE] 
> freerdp_peer::Capabilities() callback failed
> Aug 30 15:20:52 warehouse-inventory gnome-remote-desktop-daemon[1507]: 
> [15:20:52:423] [1507:000020c1] [ERROR][com.freerdp.core.transport] - 
> [transport_check_fds]: transport_check_fds: transport->ReceiveCallback() - 
> STATE_RUN_FAILED [-1]
> Aug 30 15:20:54 warehouse-inventory gnome-remote-de[1507]: [RDP] Client did 
> not advertise support for the Graphics Pipeline, closing connection
> Aug 30 15:20:54 warehouse-inventory gnome-remote-de[1507]: [RDP] Network or 
> intentional disconnect, stopping session
> Aug 30 15:20:54 warehouse-inventory gnome-remote-desktop-daemon[1507]: 
> [15:20:54:253] [1507:000020c8] [ERROR][com.freerdp.core.peer] - 
> [rdp_peer_handle_state_demand_active]: 
> [CONNECTION_STATE_CAPABILITIES_EXCHANGE_DEMAND_ACTIVE] 
> freerdp_peer::Capabilities() callback failed
> Aug 30 15:20:54 warehouse-inventory gnome-remote-desktop-daemon[1507]: 
> [15:20:54:253] [1507:000020c8] [ERROR][com.freerdp.core.transport] - 
> [transport_check_fds]: transport_check_fds: transport->ReceiveCallback() - 
> STATE_RUN_FAILED [-1]
> Aug 30 15:20:57 warehouse-inventory wpa_supplicant[1027]: RRM: Unsupported 
> radio measurement type 9

The relevant line to me is the "Client did not advertise support for the 
Graphics Pipeline, closing connection". I did a quick web search for this and 
saw multiple reports of this with Guacamole. Is there any fix for this? This is 
a brand new, vanilla Ubuntu 24.04 workstation with nothing custom, so I would 
think one of the more common workstation types people would want to connect to.
On Thursday, August 29th, 2024 at 8:18 PM, Jon Gerdes <gerd...@blueloop.net> 
wrote:

> This looks like the important bit:
>
> Aug 28 11:09:23 guac guacd[775]: guacd[775]: INFO: RDP server closed/refused 
> connection: Server refused connection (wrong security type?)
> Aug 28 11:09:23 guac guacd[775]: RDP server closed/refused connection: Server 
> refused connection (wrong security type?)
>
> Could you take a look at the workstation's logs around that time and see if 
> it gives any hints. Something like this:
>
> $ journalctl --since="2024-08-28 11:00"
>
> The logs you posted are hinting at security type being the issue. Double 
> check the connection settings in the Tomcat web UI.
>
> My laptop and desktop run Ubuntu so I'll give it a go myself tomorrow, if the 
> helpdesk allows me some respite 8)
>
> Cheers
> Jon
>
> On Wed, 2024-08-28 at 15:21 +0000, Randxm wrote:
>
>> I can RDP in with Remmina no problem. I can also SSH to this ubuntu 
>> workstation using Guac without issue. Attached is the debug log. I hope 
>> there is nothing in the logs that will doxx me. I appreciate the help on 
>> this. I have a few people that rely on this Guac server I've set up.
>> On Wednesday, August 28th, 2024 at 5:34 AM, Jon Gerdes 
>> <gerd...@blueloop.net> wrote:
>>
>>> On Tue, 2024-08-27 at 21:31 +0000, Randxm wrote:
>>>
>>>> Hello,
>>>>
>>>> I'm having a very hard time figuring out how to get Guac to allow me to 
>>>> remote to an Ubuntu 24.04 desktop. I just installed 24.04 on a workstation 
>>>> and enabled desktop sharing and remote control. I see the username and 
>>>> password. I set all of this up in Guac but I keep getting the error "RDP 
>>>> server closed/refused connection: Server refused connection (wrong 
>>>> security type?)".
>>>>
>>>> Within Guac my settings are fairly simple: Protocol RDP, hostname and port 
>>>> set, username and password set, security type set to Any, Disable 
>>>> authentication unchecked, and ignore server certificate checked. This 
>>>> exact config has worked for me with previous Ubuntu versions.
>>>>
>>>> Can somebody point me in the right direction?
>>>
>>> Are you able to connect using a generic RDP client such as mstsc.exe or 
>>> xfreerdp?
>>>
>>> Edit or create /etc/guacamole/guacd.conf:
>>>
>>> [daemon]
>>>
>>> log_level
>>>
>>> =
>>>
>>> debug
>>>
>>> See 
>>> https://guacamole.apache.org/doc/gug/configuring-guacamole.html#configuring-guacd
>>>  for more details.
>>>
>>> guacd uses syslog for logging so depending on your distro, you may have to 
>>> hunt around for the output. Try /var/log/syslog or messages first.
>>>
>>> Let us know how you get on
>>>
>>> Cheers
>>> Jon
>>
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