Two SSL certificates required for two Apache servers using mod_proxy to serve HTTPS?

Posted by Nick on Server Fault See other posts from Server Fault or by Nick
Published on 2011-01-04T11:15:03Z Indexed on 2011/01/04 11:55 UTC
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apache

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ssl-certificate

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proxypass

Our application originally used a single Apache server with mod_perl installed to serve up all HTTPS requests. Due to memory issues I've added a lighter Apache installation and used ProxyPass to hand off the Perl requests to the mod_perl enabled server.

We currently have an SSL certificate installed on the mod_perl server but I'm struggling to understand whether we need a certificate for both servers or only the lightweight server which is receiving the original requests. Or can a certificate be used for more than one server on a single machine?

Thanks in advance for any help/pointers.

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