[X2Go-User] SSH error with pyhoca-gui

[Michael Eager]

I'm seeing a message saying "SSH Error" with pyhoca-gui when connecting
to a CentOS 7 server.  The message in /var/log/secure on the server is
   Connection closed by 192.168.20.12 port 36098 [preauth]

I can log in to the server using SSH, and I am able to connect using
pyhoca-cli and x2goclient.  The profile specifies a shared id_rsa key.

On the server:
   x2goserver-4.0.1.20-1.el7.x86_64

On the client:
   x2goclient-4.1.1.0-1.fc27.x86_64
   python2-x2go-0.5.0.5-2.fc27.noarch
   pyhoca-gui-0.5.0.6-4.fc27.noarch
   pyhoca-cli-0.5.0.3-5.fc27.noarch

How can I tell what pyhoca-gui is doing differently/incorrectly?

-- 
Michael Eager    eager at eagerm.com