Hi @gfreund
you can use this command to add a new global admin use in the shell:
.../bin/add-user-keycloak.sh -r master -u <username> -p <password> as described in a number of available documentations as well as in the original keycloak manual Link
and start the service by using this command:
.../bin/standalone.sh -b 0.0.0.0 -bmanagement 0.0.0.0