I've got some software that's running on Solaris 10 servers. We're using SunRays as the clients. The software uses the SunRay serial ports to communicate with some manufacturing equipment. At one particular location, on one particular server, we've started getting intermittent "This Port is Closed" errors. Of course, nothing that we can think of has changed recently (no updates to the OS, our software, or the equipment). Is there a way to log/track serial port open/closes?