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private static String getDNSServer() {
     ConnectivityManager connectivityManager = (ConnectivityManager) mContext.getSystemService(mContext.CONNECTIVITY_SERVICE);     for(Network network :connectivityManager.getAllNetworks())     {
         NetworkInfo networkInfo = connectivityManager.getNetworkInfo(network);         if (networkInfo.isConnected()) {
             LinkProperties linkProperties = connectivityManager.getLinkProperties(network);             return linkProperties.getDnsServers().toString();         }     }     //Failed     return "127.0.0.1"; }

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