TRUSTING BSD - Ultra-High Security for FrBSD
Trusted operating systems are not precisely defined, but generally include a number of security enhancements not usually found in Unix. Access control lists (ACLs) allow a file or directorys permissions to be more fine-grained than just owner, group, all. Rather than having just a single root user, limited administration capability can be broken up among a number of administrative accounts ensuring that even an administrator account compromise is non-fatal.
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