Re: ASP.NET and third party cookies

You'd need to test this, but I believe if you set the domain on the cookie,
then it will be passed to subdomains, as such:

HttpCookie c = new HttpCookie("MyCookie");
c.Value = "value";
c.Domain = ".test.com";
Response.Cookies.Add(c);

Note the extra "." in the domain. If it's formed this way, then it's
supposed to be sent along to the subdomain. Like I said, you'll have to test
this, but I don't see why the different IP of the subdomain should matter.

-Brock
http://staff.develop.com/ballen


> -----Original Message-----
> From: Discussion of building .NET applications targeted for
> the Web [mailto:DOTNET-WEB@xxxxxxxxxxxxxxxxxxx] On Behalf Of
> Brian Vallelunga
> Sent: Wednesday, January 19, 2005 8:01 PM
> To: DOTNET-WEB@xxxxxxxxxxxxxxxxxxx
> Subject: [DOTNET-WEB] ASP.NET and third party cookies
>
> I'm working on a website that is merging with another
> company's site. My
> site is ASP.NET based and will be running on a separate server. We
> aren't going to allow access to my site unless the user has a certain
> cookie set by the main site. I'm a little unsure of how to check this.
>
> Their site is http://test.com/
> My site will be http://mysite.test.com/
>
> Do they just need to point DNS to my server for this to work?
> I know the
> name of the cookie to check, but am unsure if I will be able
> to actually
> read it from my server. What are the specifics for this? I
> believe there
> is some sort of security in place for cookies, but am unsure of how it
> works with third level domains. Any thoughts/documentation for doing
> this?
>
> Thanks,
> Brian
>
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