1. Don't know, should be easy to test.2. Pipe.3. I think this depends on which actual proxy module you are using. (There are parameters for controlling the buffer size and when to flush)On Mon, Jan 14, 2019 at 9:51 AM Hemant Chaudhary <hemantdude.chaudhary@xxxxxxxxx> wrote:Hi Team,I have following doubt, please help me to understand1) I am using worker MPM and according to architecture, each child process creates one worker listener thread which has mutex and listens on the port. If I am using two ports 80 and 443 then whether each child creates two listener thread to listen on each port(80 and 443) or it will create only one listener thread.2) When mod_cgi forks the another process and sends the response back to client then the communication between http process and forked process happens through pipe or socket.3) When we proxy https request to backend server like tomcat then whether message transfers takes place in stream manner or it sends the whole message to backend server after decrypt the message.Please let me know if I am not clear.ThanksHemant