If the version of FreeRDP in the Docker image for 0.9.14 is too old, you could try building the guacd Docker image from guacamole-server master. The Dockerfile for guacamole-server has been updated to use Debian stable, which has a newer FreeRDP.
- Mike On Mon, Oct 1, 2018 at 11:37 AM, Joachim Lindenberg <joac...@lindenberg.one> wrote: > Hello, > > I installed a new virtual machine, docker, docker-compose, configured the > system – I am referencing guacamole/guacd and guacamole/guacamole from my > docker-compose.yml. > > > > Connections to Hyper-V VMs are disconnected immediately (didn´t test > anything else). > > Docker logs guacd reveals the following: > > > > guacd: INFO: Security mode: NLA > > guacd: WARNING: Installed version of FreeRDP lacks support for the > preconnection PDU. The specified preconnection BLOB and/or ID will be > ignored. > > guacd: INFO: Resize method: none > > guacd: INFO: User "@d22fb955-b202-44f3-8e0f-918085a68e68" > joined connection "$fbccda9f-4170-4a4c-87ab-e824d1ae8434" (1 users now > present) > > guacd: INFO: Loading keymap "base" > > guacd: INFO: Loading keymap "de-de-qwertz" > > recv: Connection reset by peer > > guacd: ERROR: Error connecting to RDP server > > guacd: INFO: User "@d22fb955-b202-44f3-8e0f-918085a68e68" > disconnected (0 users remain) > > guacd: INFO: Last user of connection > "$fbccda9f-4170-4a4c-87ab-e824d1ae8434" > disconnected > > connected to Tom.samba.lindenberg.one:2179 > > Error: protocol security negotiation failure > > guacd: INFO: Connection "$fbccda9f-4170-4a4c-87ab-e824d1ae8434" > removed. > > > > docker exec -it guacd xfreerdp --version > > This is FreeRDP version 1.0.2 > > > > Is this a known issue? How can I check the freerdp library version? Can I > upgrade the container? What else can I do? > > Thanks & Best Regards, Joachim > > >