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Advanced users • VNC session using guacamole not connecting

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I've successfilly installed Guacamole 1.3.0 on a Linux Mint server and crerated an ssh session with which I can connect to my P (Bullseye). But whatever I do, the VNC session I created reports "The remote desktop server is currently unreachable."

Here is my user-mapping.xml file:

Code:

<user-mapping>  <authorize      username="admin"      password="REDACTED"      encoding="md5">    <connection name="Pi03 VNC">      <protocol>vnc</protocol>      <param name="hostname">192.168.1.212</param>      <param name="port">5900</param>      <param name="password">REDACTED</param>    </connection>    <connection name="Pi03 SSH">      <protocol>ssh</protocol>      <param name="hostname">192.168.1.212</param>      <param name="port">22</param>      <param name="username">pi</param>      <param name="password">REDACTED</param>    </connection>  </authorize></user-mapping>
ChatGPT and I have been working at it all afternoon.
Output from journalctl -u guacd included the line

Code:

Unknown authentication scheme from VNC server: 13, 5
So at ChatGPT's suggestion, on the Pi in /root/.vnc/config.d/vncserver-x11, I added

Code:

Authentication=VncAuth  Encryption=PreferOff
This had no effect. (vncserver-x11 -service -getconfig showed these paramaters had indeed taken effect.)
Output from journalctl -u guacd now includes the line

Code:

Unknown authentication scheme from VNC server: 6, 130, 13, 5
I tried running vncpasswd on the pi to set an explicit password, but this didn't help either.

Can anyone help please?

Statistics: Posted by pleriche — Wed Jan 29, 2025 10:27 pm



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