According to Mark Riggins:
>It is my understanding that the only way to lower the security level is
>to reboot the system.
>Thus "superuser" can only monotonically increase the level of security.
>Can any BSD experts confirm this?
Yes, that is correct. There are some things that are reliant on the
security level as well - things like loadable modules can only be
loaded in single user mode. Access to memory can be blocked as well
but if you are using X on the console then you have to relax that.
Brett Lymn, Computer Systems Administrator, AWA Defence Industries
"Upgrading your memory gives you MORE RAM!" - ad in MacWAREHOUSE catalogue.