I just noticed that both mire and deleuze only have one network device 
per server online.  For some reason I imagined that we would use the 
fact that both servers have two network interfaces to build a private 
and and public network for our servers, so things like backup and AFS 
could go over a connection that doesn't have a public IP and wouldn't be 
carrying traffic out to the internet.  Currently deleuze only has one 
interface listening on 69.90.123.67. 

Was there a reason for setting things up the way that they are?  Should 
we add a second private network before we go live with the servers?  It 
seems like this could allow us to use more bandwidth between servers 
(especially for backup and fileserving purposes) and potentially 
increase security in our configuration.

BTW, I came across this issue when I was looking at how to set up 
database permissions so that databases would be accessible from deleuze 
to mire, which would be another application of having two networks, one 
that serves to the outside world and one available internally.  Let me 
know what you think.

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