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Date: Tue, 5 Aug 2008 09:48:16 -0400
From: "Rodrique Heron" <swygue@rodhouse.org>
To: freebsd-pf@freebsd.org
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Subject: Understanding Load Balancing with DNS+PF+CARP
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I'm a running a Apache reverse proxy on PF+CARP, one node as master the
other backup. I want a active/active setup, but since I don't have a
hardware load balancer I'm banking on DNS. I would like to understand what
happens when a host connects to the cluster for the first time after the
first DNS query.

So a user request www.website.com, DNS round-robin points the user to node1,
what happens when a the user makes another request ? Is there another DNS
lookup ? Will the user the sent back to node1 ? Does it make a difference if
the server is hosting static content or an application ?

Thanks