An expiration time field in security token?
in Windows' access token there's a field, present since Windows NT 3.1 but currently unused, which sets expiration time for a security context.
When I knew, I imagined suuuuuuuuuuuuuch situations in which it could be useful.... e.g.: you setted an account to expire, account is still logged when it expires, account can still accesses system resources. Only way you have is forcing an explicit logoff.
Do you know if in Linux's security tokens there's such a possibility? If yes, how can one access it programmatically?