Cross Domain Cookies With FormsAuthentication

Question

I know the security risk associated and have brought it up with the business, but they want to have their 5 domains to share the login cookie.

We are using and have

Answer 1

You may setup all these domains as sub-domains for your company:

www.company.com
shop.company.com
sales.company.com
research.company.com
..

then you will be able to set cookie to the parent domain and it will be visible for all sub-domains.

var cookie = new HttpCookie(FormsAuthentication.FormsCookieName, encTicket);
cookie.Domain = ".company.com";
Repsonse.Cookies.Add(cookie);

Regards, Max Chernyshov http://prontocoder.com