If you want to experiment, Matthew Dillon has added a little program that tests syslink connectivity. Syslink is the protocol that will be used for communication between DragonFly systems in a cluster. Don’t get too excited – it’s just a test program.
A running description of activity related to DragonFly BSD.
How is DragonFly going to deal with the security problems implied by sending these messages? Are they assuming that all the machines operate in a safe environment?
A good question for the mailing lists. The assumption, as I recall, is that some/all of the links will exist in a higher-latency/smaller bandwidth environment, i.e the Internet. That would be about as unsafe as you can get.