Two level domain name same different background, how to prevent user name as the result of permissions session conflict

For example, the address of two websites is
Teacher.aaa.com
Father.aaa.com

The user name of a user in both backgrounds is Peter
RBAC permissions used by
Saved with the session
How to do a browser two sites are able to log in simultaneously session and permissions do not conflict

Reply content:

For example, the address of two websites is
Teacher.aaa.com
Father.aaa.com

The user name of a user in both backgrounds is Peter
RBAC permissions used by
Saved with the session
How to do a browser two sites are able to log in simultaneously session and permissions do not conflict

The two sites session cookie domain can be set up, the scope of the corresponding site (including two-level domain name), will session not conflict with each other.

Set the domain entry for the cookie

Different domains, the session will not be the same, so there will be no conflict.
The permissions of the account are controlled by the program, not session,session just to help you determine "who he is".

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