private void find()
{
richTextBox1.Text = "";
System.Net.NetworkInformation.IPGlobalProperties network = System.Net.NetworkInformation.IPGlobalProperties.GetIPGlobalProperties();
System.Net.NetworkInformation.TcpConnectionInformation[] connections = network.GetActiveTcpConnections();
foreach (System.Net.NetworkInformation.TcpConnectionInformation tcp in connections)
{
richTextBox1.Text = richTextBox1.Text + "IP >>> " + "Remote Network Address : " + tcp.RemoteEndPoint.Address + " Local Network Address : " + tcp.LocalEndPoint.Address + " State : " + tcp.State.ToString() + "\n";
}
}
private void find()
{
richTextBox1.Text = "";
System.Net.NetworkInformation.IPGlobalProperties network = System.Net.NetworkInformation.IPGlobalProperties.GetIPGlobalProperties();
System.Net.NetworkInformation.TcpConnectionInformation[] connections = network.GetActiveTcpConnections();
foreach (System.Net.NetworkInformation.TcpConnectionInformation tcp in connections)
{
richTextBox1.Text = richTextBox1.Text + "IP >>> " + "Remote Network Address : " + tcp.RemoteEndPoint.Address + " Local Network Address : " + tcp.LocalEndPoint.Address + " State : " + tcp.State.ToString() + "\n";
}
if (richTextBox1.Text == "")
{
richTextBox1.Text = "Unfortunately No Computers Where found On your Current Network, You may Want to check your Network Cables or Windows Networking Settings.";
}
}
} // End Sub TestX11_Shared
public static void ShowActiveTcpConnections()
{
System.Console.WriteLine("Active TCP Connections");
System.Net.NetworkInformation.IPGlobalProperties properties = System.Net.NetworkInformation.IPGlobalProperties.GetIPGlobalProperties();
// System.Console.WriteLine("Computer name: {0}", properties.HostName);
// System.Console.WriteLine("Domain name: {0}", properties.DomainName);
// System.Console.WriteLine("Node type: {0:f}", properties.NodeType);
// System.Console.WriteLine("DHCP scope: {0}", properties.DhcpScopeName);
// System.Console.WriteLine("WINS proxy? {0}", properties.IsWinsProxy);
System.Net.NetworkInformation.TcpConnectionInformation[] connections = properties.GetActiveTcpConnections();
foreach (System.Net.NetworkInformation.TcpConnectionInformation c in connections)
{
System.Console.WriteLine("{0} <==> {1}",
c.LocalEndPoint.ToString(),
c.RemoteEndPoint.ToString());
}
}
private bool IsUsed(int port)
{
bool isUsed = false;
// Evaluate current system tcp connections. This is the same information provided
// by the netstat command line application, just in .Net strongly-typed object
// form. We will look through the list, and if our port we would like to use
// in our TcpClient is occupied, we will set isAvailable to false.
System.Net.NetworkInformation.IPGlobalProperties ipGlobalProperties = System.Net.NetworkInformation.IPGlobalProperties.GetIPGlobalProperties();
System.Net.NetworkInformation.TcpConnectionInformation[] tcpConnInfoArray = ipGlobalProperties.GetActiveTcpConnections();
foreach (System.Net.NetworkInformation.TcpConnectionInformation tcpi in tcpConnInfoArray)
{
if (tcpi.LocalEndPoint.Port == port)
{
isUsed = true;
break;
}
}
return(isUsed);
}
private bool IsTcpIPStill(TcpClient tcpClient)
{
System.Net.NetworkInformation.IPGlobalProperties ipProperties = System.Net.NetworkInformation.IPGlobalProperties.GetIPGlobalProperties();
System.Net.NetworkInformation.TcpConnectionInformation[] tcpConnections = ipProperties.GetActiveTcpConnections().Where(x => x.LocalEndPoint.Equals(tcpClient.Client.LocalEndPoint) && x.RemoteEndPoint.Equals(tcpClient.Client.RemoteEndPoint)).ToArray();
if (tcpConnections != null && tcpConnections.Length > 0)
{
System.Net.NetworkInformation.TcpState stateOfConnection = tcpConnections.First().State;
if (stateOfConnection == System.Net.NetworkInformation.TcpState.Established)
{
// Connection is OK
return(true);
}
else
{
// No active tcp Connection to hostName:port
return(false);
}
}
return(false);
}
private void ScanPorts(string host)
{
rtbOutput.Clear();
try
{
System.Net.NetworkInformation.IPGlobalProperties properties = System.Net.NetworkInformation.IPGlobalProperties.GetIPGlobalProperties();
IPEndPoint[] tcpEndPoints = properties.GetActiveTcpListeners();
System.Net.NetworkInformation.TcpConnectionInformation[] tcpConnections = properties.GetActiveTcpConnections();
tcpConnections.ToList().ForEach(p =>
{
rtbOutput.Text += $"Local = [{p.LocalEndPoint.Address}:{p.LocalEndPoint.Port}] Remote = [{p.RemoteEndPoint.Address}:{p.RemoteEndPoint.Port}] State = [{p.State}]\n";
});
}
catch (Exception ex)
{
PrintSomeLogInfo(ex.Message);
}
}
