CODEWITHSUNDEEP
asp.net
Gaizka Allende
Gaizka Allende

Reputation: 9427

Request.ServerVariables["SERVER_NAME"] is always localhost

I'm developing an ASP.NET 3.5 application with Visual Studio 2008.

My default page has some redirection code in the Page_Load method:

    protected void Page_Load(object sender, EventArgs e)
    {

        string sname = Request.ServerVariables["SERVER_NAME"].ToLower();

        if (sname.ToLower().Contains("intranet"))
        {
        Response.Redirect("/intranet/Default.aspx");
        }
        else if ((sname.ToLower().Contains("extranet")))
        {
            Response.Redirect("/extranet/Default.aspx");
        }
        else {
            Response.Redirect("/web/Default.aspx");
        }
    }

I've modified my hosts file so that intranet and extranet redirect to my local machine. 

127.0.0.1       intranet
127.0.0.1       extranet

I then type the URL http://extranet in my browser.

However, the problem is that the server variable value returned from Request.ServerVariables["SERVER_NAME"] is always "localhost" and not "extranet"

Any help on how to get the right value?

Many thanks

Upvotes: 12

Views: 31961

Answers (4)

Max Wikström
Max Wikström

Reputation: 131

Youre right You want to retrieve the full address of the website that the request came to. Do not use "SERVER_NAME", use "HTTP_HOST". Read here, http://www.requestservervariables.com/get-address-for-website

Upvotes: 5

Gaizka Allende
Gaizka Allende

Reputation: 9427

Request.ServerVariables["HTTP_HOST"] gets the value I was looking for :)

Upvotes: 13

Jamie
Jamie

Reputation: 11

Your host files only redirect the requests to a specific IP address - you cannot change the requesting machines name by editing them.

Upvotes: 0

Eduardo Molteni
Eduardo Molteni

Reputation: 39413

Server_Name returns the server's host name, DNS alias, or IP address as it would appear in self-referencing URLs

Why don't you use Request.URL?

Upvotes: 0

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