避免在cakephp中与两个不同的域进行会话匹配？

I have two different domains both are developed in cakephp, My problem is, When I have logged into anyone of domain, Its working fine and when I'm open another one in new tab, It will take same session data. Suppose, If I logged out anyone, both are logout. So I need separate sessions. And one project have ACL component and another one doesn't have.I have two different domains both are developed