Hi! >My filter needs to find out what host and port the Proxy is running on. U can get the HttpManager in your filter(look at initiliaze function). Then, ObservableProperties props = manager.getProperties(); String host = props.getString(PROXY_HOST_P, null); int port = props.getInteger(PROXY_PORT_P, -1); should works.. I dont think that u can change proxy-host or proxy-port when jigsaw runs. JeanFI.