[GUACAMOLE-414] Certain VNC servers result in disconnection due to TLS errors

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.9.13-incubating, 0.9.14, 1.0.0, 1.1.0
• Fix Version/s: 1.2.0
• Component/s: guacamole-server, guacd
• Environment: unRAID 6.4rc9 Docker container
• Assignee: Nick Couchman
• Reporter: Jason Bean
• Created: 12/Oct/17 15:20
• Updated: 28/Apr/21 21:07
• Resolved: 24/Apr/19 22:34

Description

Connecting to certain VNC servers such as Ubuntu Desktop (all versions I have ever run) and a CentOS based Browser Docker (https://hub.docker.com/r/consol/centos-xfce-vnc/) cause frequent TLS errors and consequently disconnections. The errors in the log are as follows:

Oct 12 14:54:59 2004ff6050af guacd[8440]: Error reading from TLS: The TLS connection was non-properly terminated..

Oct 12 14:54:59 2004ff6050af guacd[8440]: read (4: Interrupted system call)
Oct 12 14:54:59 2004ff6050af guacd[8440]: Error handling message from VNC server.

Oct 12 14:54:59 2004ff6050af guacd[8440]: Internal VNC client disconnected