[keycloak-user] Outbound Proxy for Keycloak Server(backchannel calls)

Hi all, I really need to setup an outbound proxy for the keycloak server(3.4.3) to be used in the back-channel calls back to the client nodes.  Can anybody help?  Thanks a lot, Lucian PS: sorry if this is a duplicate, I wasn't sure if the first email went through because I got membership confirmation email back