public static bool TelnetPort(string ip, int port)
{
bool isOpen = false;
try
{
IPAddress ip1 = IPAddress.Parse(ip);
IPEndPoint ipend = new IPEndPoint(ip1, port);
TimeOutSocket.Connect(ipend, 500);
if (TimeOutSocket.IsConnectionSuccessful)
{
isOpen = true;
}
}
catch (Exception)
{
return(false);
}
//Socket sock = null;
//IPAddress ip1 = IPAddress.Parse(ip);
//try
//{
// sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
// sock.Connect(ip1, port);
// IAsyncResult connResult = sock.BeginConnect(ip, port, null, null);
// connResult.AsyncWaitHandle.WaitOne(2000, true);
// if (connResult.IsCompleted)
// {
// isOpen = true;
// }
// sock.Close();
//}
//catch (SocketException e)
//{
// sock.Close();
//}
return(isOpen);
}
public static bool TelnetPort(string ip, int port)
{
bool isOpen = false;
try
{
IPAddress ip1 = IPAddress.Parse(ip);
IPEndPoint ipend = new IPEndPoint(ip1, port);
TimeOutSocket.Connect(ipend, 2000);
if (TimeOutSocket.IsConnectionSuccessful)
{
isOpen = true;
}
}
catch (Exception)
{
return(false);
}
return(isOpen);
}