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Can a single SSL Certificate (Thawte) be used on multiple servers ?

Posted on 2006-03-31
Medium Priority
Last Modified: 2008-01-09
Can a single SSL Certificate (Thawte) be used on multiple servers ?

The certificate is installed on an SBS2003 box for OWA but we have another 2003 box running Portal Server, can the existing certificate be used somehow or do we need another certificate ?

If the answer is no, could we port traffic through the SBS2003 server (utilising it's certificate) and then on to the Portal Server?

TIA, Bill

Question by:wlewis123
LVL 15

Accepted Solution

Darwinian999 earned 750 total points
ID: 16348704
You can use a single certificate on multiple servers if all of the servers have the same DNS name, such as in a load balanced web server farm. You still need to pay Thawte for a certificate on each of the servers though, even though its the same certificate.

If you have ISA on your SBS Server, you could probably set it up as a reverse proxy to your Portal server, so all connections would go via the SBS Server, and you'd only need a single certificate. If you don't have ISA, you might be able to use Squid (Open Source proxy server) to function as a reverse proxy to the Portal Server - although I'm not sure that it would function properly with Portal Server. http://www.acmeconsulting.it/pagine/opensource/squid/squidnt25.htm


Author Comment

ID: 16349627
Thanks Darwinian (I thought you might come along), ISA server is just too complex for our requirements.
As I suspected another certificate will be required (and is simple to implement), I will speak to the bean counters on Monday.

Cheers, Bill

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