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Monday, September 26, 2011

How to get the users IP those who are accessing your website using asp.net


Use below code to get the IP of your website users:

<%@ Page Language="C#" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Client IP...</title>
    <meta http-equiv="Expires" content="-1">
    <meta http-equiv="Cache-Control" content="no-cache">
    <meta http-equiv="Pragma" content="no-cache">

<%
            string _strClientIP = string.Empty;
            string[] _strforwardedIpsList;
   
            // Get exact IP address if proxy available
            string _strServerVariable = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];

            if (!string.IsNullOrEmpty(_strServerVariable))
            {
                _strforwardedIpsList = _strServerVariable.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
                _strClientIP = _strforwardedIpsList[_strforwardedIpsList.Length - 1];
            }
            else
            {
                // Get Proxy IP address
                _strClientIP = HttpContext.Current.Request.UserHostAddress;               

                if (string.IsNullOrEmpty(_strClientIP))
                    _strClientIP = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
            }

            Response.Write(_strClientIP);        

%>
</head>
<body>
    <form id="testForm">
    </form>
</body>
</html>
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