Talk in computer language.: ASP.Net with socket and networking

Port scan using ASP.Net

Port scan using ASP.NET

Step 1)Check your internet connection.

Step 2) Put following code in your ASP.Net page

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="socket.aspx.cs" Inherits="socket" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        Start port:- 
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><br />
        End port:-  
        <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox><br />
        Enter URL:-<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
        <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Scan" Width="66px" /><br />
        <br />
        <asp:ListBox ID="ListBox1" runat="server" Height="129px" Width="230px"></asp:ListBox><br />
        <br />

    </div>
    </form>
</body>
</html>

Step 3)Write below code in your code behind of ASP.Net page

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Net;
using System.IO;
using System.Net.Sockets;

public partial class socket : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {

        Int32 start = Convert.ToInt32(this.TextBox1.Text);
        Int32 end = Convert.ToInt32(this.TextBox2.Text);
        string url = Convert.ToString(this.TextBox3.Text);

        IPHostEntry hostname1 = Dns.GetHostByName(url);
        IPAddress[] ip1 = hostname1.AddressList;

        string ip = ip1[0].ToString();

        TcpClient abc = new TcpClient();
        for (int i = start; i < end; i++)
        {

            try
            {
                abc.Connect(ip, i);
                this.ListBox1.Items.Add("Port" + Convert.ToSingle(i) + "open");

            }
            catch (Exception ex)
            {
                this.ListBox1.Items.Add("Port" + Convert.ToString(i) + "Close");
            }
        }

    }
}

Fetch a web page from server using ASP.Net

Fetch a web page from web server

Step 1) Make sure internet connection of your machine is available

Step 2)Put the following code in your ASP.Net Page

(It will take some time to exhicute the programe)

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Net;

using System.IO;

public partial class socket : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

try

{

StreamReader inStream;

WebRequest webRequest;

WebResponse webresponse;

webRequest = WebRequest.Create("http://www.yahoo.com");

webresponse = webRequest.GetResponse();

inStream = new StreamReader(webresponse.GetResponseStream());

Response.Write(inStream.ReadToEnd());

}

catch (Exception ex)

{

Response.Write(ex.Message);

}

Display IP address of server using ASP.Net

How to display IP address of Server using ASP.NET

Step 1) Make sure internet connection of your machine is available

Step 2)Put the following code in your ASP.Net Page

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Net;

public partial class socket : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

try

{

IPHostEntry hostname1 = Dns.GetHostByName("www.google.com");

IPHostEntry hostname2 = Dns.GetHostByName("www.yahoo.com");

IPAddress[] ip1 = hostname1.AddressList;

IPAddress[] ip2 = hostname2.AddressList;

Response.Write("Google.com:-"+ ip1[0].ToString() + "<br>");

Response.Write("Yahoo.com"+ ip2[0].ToString());

}

catch (Exception ex)

{

Response.Write(ex.Message);

}

Talk in computer language.

Tuesday, February 14, 2012

Port scan using ASP.Net

Fetch a web page from server using ASP.Net

Display IP address of server using ASP.Net

About Me