Two different Drupal installations on the same domain using OpenId

Question

I have two different installations on the same server that I plan to use with OpenId.

If my user connects in one site using his openid, will he be asked to login again in the other installation or will the system find the cookie?

Answer 1

You can share user sessions across Drupal installs.

Here's a D5 tutorial that should be mostly relevant. domain.module may also accomplish what you want.

Answer 2

The Multisite login module might be useful to do that too.