> The other way that the global zone identity normally leaks through to the 
> non-global zones is through the system's hostid.  So if you compare the 
> output of `/usr/bin/hostid` with `for e in $allglobalzones ; do ssh $e 
> /usr/bin/hostid ; done`, you can easily see which global zone matches your 
> local.
> 
> That's also a way for your application administrators (using 
> application-level clustering) to verify that they are not running on the same 
> physical node.  If their hostids are different, they're different.
> 

This is not always reliable.  S8 and S9 branded zones have configureable
hostids, and in the future this is likely to be available for native zones.

-Steve L.

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