client ip address in ASP.NET (.asmx) webservices
- by Zain Shaikh
I am using ASP.Net (.asmx) web services with Silverlight. since there is no way to find client ip address in Silverlight, therefore I had to log this on service end.
these are some methods I have tried:
Request.ServerVariables(”REMOTE_HOST”)
HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]
HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
Request.UserHostAddress()
Request.UserHostName()
string strHostName = System.Net.Dns.GetHostName();
string clientIPAddress = System.Net.Dns.GetHostAddresses(strHostName).GetValue(0).ToString();
All the above methods work fine on my local system, but when I publish my service on production server. it starts giving errors.
Error: Object reference not set to an instance of an object. StackTrace: at System.Web.Hosting.ISAPIWorkerRequestInProc.GetAdditionalServerVar(Int32 index) at System.Web.Hosting.ISAPIWorkerRequestInProc.GetServerVariable(String name) at System.Web.Hosting.ISAPIWorkerRequest.GetRemoteAddress() at System.Web.HttpRequest.get_UserHostAddress()
