Multiple websites in NLB environment

Giganews Newsgroups
Subject: Multiple websites in NLB environment
Posted by:  dwiebelha…@gmail.com
Date: 6 Nov 2006

I am running a NLB cluster using Windows 2003 Server in unicast mode.
Each node has one NIC for clustering and one for communication between
the nodes (10.0.0.0 addresses). Currently, there is only one website
running on the cluster in IIS. This means each identical node, has one
website.

The current setup is:

app.mysite.com (the cluster address)
app1.mysite.com (node 1 of the cluster)
app2.mysite.com (node 2 of the cluster)

App1 and app2 refer to each node's dedicated IP address, which can be
used to access each cluster node individually from the outside world.
Now, I am adding an additional website in IIS and need it clustered as
well.

anotherapp.mysite.com (the cluster address)
anotherapp1.mysite.com (node 1 of the cluster)
anotherapp2.mysite.com (node 2 of the cluster)

I need to access anotherapp1 and anotherapp2 individually from the
outside world, as well as using the anotherapp as the cluster IP. How
can it be setup? Does this require an additional NIC in each node or
can I bind more IP addresses to the current NICs?

In other words, we want Network Load Balancing of multihomed web
servers.

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