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Lecture 11

Lecture 11. UNIX Security. Important Aspects of Security. Authentication : Make sure someone is who they claim to be Authorization : Make sure people can’t do things they’re not supposed to do Policy : Make sure data is accessible to only those authorized to see it

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Setuid Demystified (and how it may relate to stored procedure authorizations) Mahesh

Setuid Demystified (and how it may relate to stored procedure authorizations) Mahesh. Access Control in Unix. Partly based on UIDs In old unix systems, process had two UIDs: ruid, euid. Why? Principle of least privilege Newer unix systems (solaris, bsd, linux), three uids: ruid, euid, suid

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