Personally, I haven't tried running such a setup but I believe I have some suggestion, how to make it work: - Wildfly has a feature called Virtual Host [1][2]. You could use this feature to separate your realms. - Keycloak also needs to know its public address. Therefore, you might need to provide your own Hostname SPI implementation [3] [1] http://docs.wildfly.org/12/Admin_Guide.html#host-configuration [2] http://www.mastertheboss.com/jboss-web/jbosswebserver/jboss-as-virtual-ho... [3] https://www.keycloak.org/docs/latest/server_admin/index.html#request-prov... On Fri, Feb 1, 2019 at 10:53 PM Peter S <polfilm(a)gmail.com&gt; wrote: