I am in the process of deploying Exchange 2010. I have read many articles on using NLB for the CAS function. There have been no clear-cut answers to a few questions I have so hopefully someone here can answer the following:
1) When creating the NLB CAS Array, do you install the NLB service on one of the CAS servers or does it need to be on another server?
2) For OWA, I know I should create the DNS entry similar to owa.mydomain.com to point to the Virtual IP of the NLB cluster but do I only need to open port 443 on the firewall to the Virtual IP or do I need to provide public IPs to each member of the CAS array and open port 443 to each of them?
Any help you guys can provide would be greatly appreciated. Thanks.