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I've got a HAProxy in front of a number of Webservers. Connection from clients to HAProxy is SSL secured. But it is terminated at HAProxy and traffic from HAProxy to the underlying Webservers are in clear.

I am clear about how the forward traffic goes, ie, from Client >> HAProxy >> Webservers. But what about the reversed? From Webserver to Client? Is it secured as well?

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    Did you mean the server response? Yes.
    – fgbreel
    Mar 13, 2015 at 4:16

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Yes, the server response is returned through the same communication channel, plain HTTP (webserver -> haproxy) and HTTPS (haproxy -> client).

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  • Thanks for verification! I initially thought webserver will just communicate directly to client, skipping haproxy thereafter.
    – ngzhongcai
    Mar 13, 2015 at 8:02
  • Can I also ask if this is also the behaviour for AWS ELB? =)
    – ngzhongcai
    Mar 15, 2015 at 10:04
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    Yes, ELB is/uses HAProxy. But this behavior is from the server-client model.
    – fgbreel
    Mar 15, 2015 at 12:09

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