
admin:host-set-foreign-port( $config as element(configuration), $host-id as xs:unsignedLong, $value as xs:unsignedInt ) as element(configuration)
This function configures the specified domestic host to listen for communications from foreign hosts over the specified port.
http://marklogic.com/xdmp/privileges/admin/host
http://marklogic.com/xdmp/privileges/admin/host/{id}
  xquery version "1.0-ml";
  import module namespace admin = "http://marklogic.com/xdmp/admin"
      at "/MarkLogic/admin.xqy";
  let $cfg := admin:get-configuration()
  let $hid := xdmp:host("master.marklogic.com")
  return admin:host-set-foreign-port($cfg, $hid, 7998)
  (: Configures the specified host to listen for foreign communications over
     port 7998.  Use admin:save-configuration to save the changes to the
     configuration or pass the configuration to other Admin API functions
     to make other changes. :)