| 摘要 |
The invention relates to networked computer systems, and particularly to temporary restriction of access to such systems. A computer system (2) connectable over a network to a plurality of users comprises normal access control means for restricting user access to the system (2), the control means comprising a user authentication procedure (44, 46) in which at logon the user's identity is compared with a first definition of authorised users; system-wide profile means referenced (72) by all users of the system (2) at logon; and temporary access control facilitation means for temporarily preventing access to the system (2) by a normally authorised user or users. The facilitation means allow a privileged user of the system (2) to create a second definition of temporarily unauthorised users, which is referenced by the system-wide profile means at logon. <IMAGE> |
