Server Packages:
x2goserver-4.1.0.3-3.el7.x86_64
x2goserver-xsession-4.1.0.3-3.el7.noarch
x2goserver-common-4.1.0.3-3.el7.noarch
nxagent-3.5.99.23-1.el7.x86_64
Server OS:
CentOS Linux release 7.8.2003 (Core)
Client Packages:
x2goplugin-4.1.1.1-1.el7.x86_64
x2goclient-4.1.1.1-1.el7.x86_64
Client OS:
CentOS Linux release 7.7.1908 (Core)
Problem:
The following line in the clients "/etc/ssh/ssh_config" file prevents a successful connection:
Proxy command /usr/bin/sss_ssh_knownhosts_proxy -p %p %h
Commenting out this line and reloading the sshd service permits a successful connection.
Both server and host are joined to Red Hat IdM (aka IPA).
Server has MATE desktop installed. The client is session preference is configured to use "Custom desktop: /usr/bin/mate-session" as selecting MATE session type results in a failed connection.
Sound and client side printing support are disabled in the session preferences.