Hi, I'd like to set up a reverse proxy server which forwards requests to an internal app server. Both servers handles only ssl requests. And I have some questions. Thanks. * How many ssl certificates do I need in my current setup? 1 (for the proxy server) or 2 (for both the proxy server and the app server)? * How does the communication between the proxy server and the internal app server work? I mean, does the proxy server first decrypt a request and then encrypt it again before it forward the request to the app server? * I am also thinking about deploying ModSecurity on the proxy server. Are they good combination?