Have you tried this: 
http://web2py.com/books/default/chapter/29/09/access-control#Central-Authentication-Service

Anthony

On Friday, December 5, 2014 1:45:17 PM UTC-5, Carlos Correia wrote:
>
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> Hi, 
>
> Please, consider this use case scenario: 
>
> - - A web2py server with several apps: 'master', 'app_a', 'app_b', 
> 'app_c', ... 
> - - Each user may have access to more then one app 
>
> Ideally (?) users should authenticate in 'master' and then choose one of 
> the 
> apps they have access to which would use 'master' database for user 
> authentication. 
>
> Example: 
>
> User 'alice' has access to 'app_a' and 'app_c'. 
> After login, she is prompted with a list of apps she has access to (a + 
> c). 
> She chooses 'app_c' and is redirected to app without the need to login 
> (again) 
> in the app. 
>
> Is there any way to avoid the (second) login in the targeted app? 
>
> I know I could use a different database for Auth(), but don't know if it's 
> even 
> possible to avoid the last login. 
>
> Thanks, 
> - -- 
>
> Carlos Correia 
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