This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
I want to introduce session sharing across sub domains. I'm aware of the sessionCookieDomain=".domain.com" option, but in my case, I use the same application to serve multiple top domains, domain1.com, domain2.com
What would be the best way to have for each top domain the ability to share sessions across its sub domains?