Redirecting non-www request to www using Asp.Net

Is this the usual approach?

[fischermx]

Hi,

I want to redirect any incoming request in my site that calls a page that is not using the www prefix to the one with the prefix.

I've just come with this solution :

protected void Application_BeginRequest(Object sender, EventArgs e) 
{ 
string serverName = Request.ServerVariables["SERVER_NAME"]; 
string destURL = Request.ServerVariables["URL"]; 
if (serverName.IndexOf("example.com") == 0) 
{ 
Response.StatusCode = 301; 
Response.RedirectLocation = "http://www.example.com"+destURL; 
} 
} 

Using .Net/IIS, is this the "correct" way to do it?
Any other idea?

[edited by: Xoc at 7:48 am (utc) on May 26, 2005]

[fischermx]

No one else have tried this!?

[LeoXIV]

by default[which is modifable] aspnet_isapi.dll only handles .net related requests (.aspx, ...). so if you want to include every extenstion, you need to modify that.

[aspdaddy]

I dont get it.

Isnt it just gonna use a lot of resources and mess up your log analysis.

1) Whats the benefits?
2) There must be better way, some re-write feature in the server or firewall?

[Xoc]

It is precisely to keep his log files analysis correct that he should do it. I prefer that there be a canonical url for each of my web pages. If [example.com...] has the same content as [example.com,...] then there isn't a canonical url for this content on the web. Plus, it makes sure than everyone who links to him uses the same canonical url.

In any case, there is a way to do this with pure IIS. See posting #9 in this thread: [webmasterworld.com...]