Here you can find the source of isLocalHost(String address)
public static boolean isLocalHost(String address)
//package com.java2s; /*/*from w w w .ja v a 2 s .c om*/ * ISABEL: A group collaboration tool for the Internet * Copyright (C) 2009 Agora System S.A. * * This file is part of Isabel. * * Isabel is free software: you can redistribute it and/or modify * it under the terms of the Affero GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Isabel is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * Affero GNU General Public License for more details. * * You should have received a copy of the Affero GNU General Public License * along with Isabel. If not, see <http://www.gnu.org/licenses/>. */ import java.net.*; public class Main { /** * Indica si la direccion IP/host que se pasa como parametro pertenece a la maquina local o no * @return true si es de la maquina local. */ public static boolean isLocalHost(String address) { if ((address == null) || (address.equals(""))) { return false; } try { InetAddress ia = InetAddress.getByName(address); if (ia.isLoopbackAddress()) { return true; } NetworkInterface ni = NetworkInterface.getByInetAddress(ia); return ni != null; } catch (SocketException se) { return false; } catch (UnknownHostException uhe) { return false; } } }