https status codes

[Franks Andy (IT Technical Architecture Manager)]

Hi all,

HAProxy 1.7.6

  I have a hopefully easy question to answer - I'm trying to do server checks 
against 2x IIS nodes which require sending of the destination host name 
(virtual hosts) before delivering content. I'm trying to work out how to send 
the backend server name with the check request. At the moment the IIS server
isn't seeing the name, rather an IP address as far as I can tell, and 
responding with a 404.

This is the config

       backend bk_web_ssl
          mode http
          option httplog
          option httpchk GET https://rsh-cp-iis1/Login/Heartbeat
          http-check expect rstatus 200
          balance roundrobin
           stick on src table connections
          cookie SERVERID insert nocache indirect
          server RSH-CP-IIS1 192.168.176.175:443 cookie 1 check ssl
          server RSH-CP-IIS2 192.168.176.176:443 cookie 2 check ssl


I can sort of get it to work on one of the two by including that servers name 
in the option httpchk line as seen:

          option httpchk GET https://rsh-cp-iis1/Login/Heartbeat

.. but would rather just do option httpchk GET /Login/Heartbeat

..And something like
          server RSH-CP-IIS1 RSH-CP-IIS1:443 cookie 1 check ssl
          server RSH-CP-IIS2 RSH-CP-IIS2:443 cookie 2 check ssl

Is there some keyword I'm missing somewhere or a better way of doing this?

Thanks
Andy