My shop has been using the FreeNX server on Fedora 11 for a while now and mostly getting good results, especially with performance, but we have some annoying problems with client connections. There are two main issues:

1. Client sessions sometimes freeze after a long time (seems to be at least 2 hours of having the session active)
2. We often have to make multiple attempts to start a new client session, especially if a previous session was suspended rather than terminated. In qwuite a few cases, we've had to restart the NX server to get around this.

Our NX server configuration is the default except that we've enabled logging level 7 to /var/log/nxserver.log, and set the font server to "unix:/7100" so that it uses xfs.

Does anyone have any ideas for making things more stable ?