Hi, I notice that recently there are some issue about NetUtils.getLocalHost, someone complains about that logic changes bring by issue: https://github.com/apache/incubator-dubbo/issues/538 <https://github.com/apache/incubator-dubbo/issues/538> pr: https://github.com/apache/incubator-dubbo/pull/3520 <https://github.com/apache/incubator-dubbo/pull/3520> The change places in 2.7.1 is NetUtils.getLocalHost add a new check method: > static boolean isValidPublicAddress(InetAddress address) { > return !address.isSiteLocalAddress() && !address.isLoopbackAddress(); > } This will exclude local site address like: 10/8 prefix 172.16/12 prefix 192.168/16 prefix so a internal ip 172.161.3.4 will successfully register into registry before, but will register localhost(mostly 127.0.0.1) into registry if no public ip exists.
Action: 1. Add a param switch let user choose to prefer to register local site address or public address. 2. The default priority to find useful address in multi network cards can be : public > internal > localhost.
