private List<String> getServerInterfaces() {

    List<String> bindInterfaces = new ArrayList<String>();

    String interfaceName = JiveGlobals.getXMLProperty("network.interface");
    String bindInterface = null;
    if (interfaceName != null) {
      if (interfaceName.trim().length() > 0) {
        bindInterface = interfaceName;
      }
    }

    int adminPort = JiveGlobals.getXMLProperty("adminConsole.port", 9090);
    int adminSecurePort = JiveGlobals.getXMLProperty("adminConsole.securePort", 9091);

    if (bindInterface == null) {
      try {
        Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
        for (NetworkInterface netInterface : Collections.list(nets)) {
          Enumeration<InetAddress> addresses = netInterface.getInetAddresses();
          for (InetAddress address : Collections.list(addresses)) {
            if ("127.0.0.1".equals(address.getHostAddress())) {
              continue;
            }
            if (address.getHostAddress().startsWith("0.")) {
              continue;
            }
            Socket socket = new Socket();
            InetSocketAddress remoteAddress =
                new InetSocketAddress(address, adminPort > 0 ? adminPort : adminSecurePort);
            try {
              socket.connect(remoteAddress);
              bindInterfaces.add(address.getHostAddress());
              break;
            } catch (IOException e) {
              // Ignore this address. Let's hope there is more addresses to validate
            }
          }
        }
      } catch (SocketException e) {
        // We failed to discover a valid IP address where the admin console is running
        return null;
      }
    } else {
      bindInterfaces.add(bindInterface);
    }

    return bindInterfaces;
  }
  /**
   * Sends an IQ packet to the Clearspace external component and returns the IQ packet returned by
   * CS or <tt>null</tt> if no answer was received before the specified timeout.
   *
   * @param packet IQ packet to send.
   * @param timeout milliseconds to wait before timing out.
   * @return IQ packet returned by Clearspace responsing the packet we sent.
   */
  public IQ query(final IQ packet, int timeout) {
    // Complain if FROM is empty
    if (packet.getFrom() == null) {
      throw new IllegalStateException("IQ packets with no FROM cannot be sent to Clearspace");
    }
    // If CS is not connected then return null
    if (clearspaces.isEmpty()) {
      return null;
    }
    // Set the target address to the IQ packet. Roate list so we distribute load
    String component;
    synchronized (clearspaces) {
      component = clearspaces.get(0);
      Collections.rotate(clearspaces, 1);
    }
    packet.setTo(component);
    final LinkedBlockingQueue<IQ> answer = new LinkedBlockingQueue<IQ>(8);
    final IQRouter router = XMPPServer.getInstance().getIQRouter();
    router.addIQResultListener(
        packet.getID(),
        new IQResultListener() {
          public void receivedAnswer(IQ packet) {
            answer.offer(packet);
          }

          public void answerTimeout(String packetId) {
            Log.warn("No answer from Clearspace was received for IQ stanza: " + packet);
          }
        });
    XMPPServer.getInstance().getIQRouter().route(packet);
    IQ reply = null;
    try {
      reply = answer.poll(timeout, TimeUnit.MILLISECONDS);
    } catch (InterruptedException e) {
      // Ignore
    }
    return reply;
  }