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Connect to site

6/29/2010

Author: Piotr F

Hi

How can i get IP and Port from www.aspspider.ws/MyStuff/ ?
My client application uses Socket class and need IP and Port to connect.
Or maybe there is some other method to connect?

Answers .............

Author: irish

Posted Date: 7/28/2010

First method -

you'll add the System.Net namespace to your using section:

using System.Net;

Example of code to get address from hostname:

string howtogeek = www.aspspider.ws;
IPAddress[] addresslist = Dns.GetHostAddresses(howtogeek);

foreach (IPAddress theaddress in addresslist)
{
Console.WriteLine(theaddress.ToString());
}

Also try this method -

/ Signals when the resolve has finished.
public static ManualResetEvent GetHostEntryFinished =
new ManualResetEvent(false);

// Define the state object for the callback.
// Use hostName to correlate calls with the proper result.
public class ResolveState
{
string hostName;
IPHostEntry resolvedIPs;

public ResolveState(string host)
{
hostName = host;
}

public IPHostEntry IPs
{
get { return resolvedIPs; }
set {resolvedIPs = value;}}
public string host {get {return hostName;}
set {hostName = value;}}
}

// Record the IPs in the state object for later use.
public static void GetHostEntryCallback(IAsyncResult ar)
{
ResolveState ioContext = (ResolveState)ar.AsyncState;

ioContext.IPs = Dns.EndGetHostEntry(ar);
GetHostEntryFinished.Set();
}

// Determine the Internet Protocol (IP) addresses for
// this host asynchronously.
public static void DoGetHostEntryAsync(string hostname)
{
GetHostEntryFinished.Reset();
ResolveState ioContext= new ResolveState(hostname);

Dns.BeginGetHostEntry(ioContext.host,
new AsyncCallback(GetHostEntryCallback), ioContext);

// Wait here until the resolve completes (the callback
// calls .Set())
GetHostEntryFinished.WaitOne();

Console.WriteLine(EndGetHostEntry({0}) returns:, ioContext.host);

foreach (IPAddress ip in ioContext.IPs.AddressList)
{
Console.WriteLine( {0}, ip);
}

}

See this link:
http://msdn.microsoft.com/en-us/library/ms143989.aspx

Happy coding

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