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Exchange 2007 OWA on NLB not working from the internet

Posted on 2009-07-02
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Last Modified: 2012-05-07
I am in the process of transitioning to Exchange 2007 and everything is pretty much set up.  Except I can't get to OWA from the internet.  This is on two server 2k8 boxes with network load balancing set up with the CAS role, two more servers with NLB and hub roles then two more with the mailbox roles.

I know, firewall, I've been all around accusing the firewall.  But, if I set a public IP and open ports for an individual server it works great on the internet, atm all ports are open and it does work 1 out of 50 tries from the internet.  

On campus everything works great I can connect to OWA using the NLB cluster IP.  I'm thinking something is setup incorrectly with the NLB but I've tried every different config I could find.  Anyone have any ideas?
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Question by:SimpsonIS
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by:EndureKona
ID: 24765458
Do you have any other ports open to the these NLB server?   Like 3389 to test to see if you can connect over via RDC?
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by:SimpsonIS
ID: 24788752
I opened ports up and was able to connect to the server via RDP.  I have 443 and 80 open, I have tested this when all the ports were open.
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SimpsonIS earned 0 total points
ID: 24873281
I've gotten this to work.

I ended up using 1 nic per server and multicast.  Everything works great like this.
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