I'm trying to get freeNX server to work on my ubuntu machine. I've got it to connect fine when I'm on my local network but when I try to connect from outside my local network it doesn't work. It connects and authenticates fine but when it tries to bring up the display it sits for a while and then quits. I've setup port forwarding on my router for port 22 and ssh works fine from outside. Is there another port I need to forward for the display?

Also, when I connect through my local network, it appears that the client keeps sending an equals sign once every second. If I open a terminal or activate a text field, a new equals sign will appear every second. What's with that?

Thanks for your help!

Have you checked the server side logs for this? Are both SSH authentications passing? The nxuser and the personal user account?

Also *IF* you only need 1 or 2 connections to this server, you might be more comfortable with the real NX server from nomachine.org which is free for low level (administrator style) use, and is generally much more straightforward (or at least, easier as more visual) in terms of logging and configuration.

Might be similar to suse.

" Changing NX TCP Port

Because changing NX port on the client is straightforward - I will concentrate on the server here.

Since FreeNX server is based on SSH, changing NX port will require you to change SSH port as well, or NX will fail. The default TCP port of SSH and NX is 22. The configuration files on SUSE Linux 10.0 are:

/etc/nxserver/node.conf

/etc/ssh/sshd_config

...and don't forget to restart the SSH service afterwards.

Tip for advanced users:

By using this technique - you can effectively setup a farm of Linux distros even on your home PC - using some kind of virtualization (VMware/Qemu/Xen) - by setting up virtual NX servers to listen on different ports. This is really cool - because it can be used from both a LAN and from the Internet at the same time ! "

From http://en.opensuse.org/FreeNX_Server...ng_NX_TCP_Port