Sorry I meant to say with the daemon. (uuidd). That would be unique between multiple  instances too. If the time one is used its already unique to the server. But as I said, I'm not sure if that's the one FS uses.

On Monday, May 20, 2013, Yossi Neiman wrote:
If you're running multiple FS instances, you could also use both the FS
server UUID in addition to the session UUID together.  That'd mean
storing more data but it would probably be on the order of winning a
$500 million USD Powerball game twice within the same month...

-Yossi

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