Question

Network Load Balancing, IIS 7 and SSL Certificates

Asked by: clarkincit

Hello,

I am trying to set up two web servers (Windows 2008, IIS 7) to network load balance.  So far, everything is working correctly.  I have one server at IP 192.168.10.12 and one at 192.168.10.13.  The Network Load Balancing is set up at 192.168.10.15.  DNS is pointing to the load balancing IP - 192.168.10.15.  The site is loading fine inside and outside of the network.

I am running into an issue, however, when trying to install a SSL certificate for the site.  When I go to install it and get to the step to indicate the IP address for the https requests, it is only letting me select * or the IP of the server (192.168.10.12).  I can get it to work if I set it to *, but it obviously won't work when set to 10.12.  I need to install multiple SSL tickets on this server (for different websites).

So, I guess my question is a) how do I use the load balancing IPs for the SSL? and then add additional IPs for Network Load Balancing of b) or how do I make it work so that the 10.12 (and 10.13) will work?  (for second SSL, I will add a second local IP for the NIC being used on each server to assign)

Thank you,
Christine

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Asked On
2009-07-29 at 13:07:47ID24610938
Tags

IIS 7

,

SSL Certificate

,

Network Load Balancing

,

DNS

Topics

Microsoft IIS Web Server

,

Secure Socket Layer (SSL) & HTTPS

,

Windows Server 2008

Participating Experts
1
Points
0
Comments
2

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Answers

 

by: sharepointguru14Posted on 2009-07-29 at 13:55:10ID: 24974575

Christine,

That will depend on the information that you put into the CSR. What I would do is not specify IP addresses and only put the domain name in the CSR. This way you can use the certificate for any site that has that domain. You can apply the same certificate on the 2 LB WFE servers.

You will need a new certificate for each separate web application though, no real way around that. If you can get away putting everything in the same web application but different site collections than you can use just the 1 certificate. You can give names like site1.domain.com site2.domain.com and use the same certificate as long as you get a wildcard certificate specifying the domain by *.domain.com

 

by: clarkincitPosted on 2009-07-31 at 09:33:45ID: 24990378

Hello,

Thank you for your response.

After playing around with IIS and the NLB cluster, I realized that I was completely missing something.  What I did was add multiple internal IP addresses to the cluster (192.168.10.15-23).  Then, I'll just use these (by manually typing them in using the bindings area of IIS) for the IPs for the certificates.  Not sure how I missed this.

I don't think the multiple IPs for the cluster will cause any issues.  Could I be missing something here?

Thank you so much!
Christine

20120131-EE-VQP-002

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