Like most operating systems in the last 40 years, Unix uses a hierarchical "tree-structured" file system (interestingly, tree-structure and other aspects of the Unix file system are a direct result of the original Unix developers being influenced by the Multics project they had been working on). Directories contain files and subdirectories which, may in turn, contain other files and subdirectories, and so on. | Unix for Security Professionals Security Essentials The SANS Institute Unix Security - SANS 2001 1 All material in this course Copyright Hal Pomeranz and Deer Run Associates 2000-2001. All rights reserved. Hal Pomeranz Founder CEO hal@ Deer Run Associates PO Box 20370 Oakland CA 94620-0370 1 510-339-7740 voice 1 510-339-3941 fax http . com 2 - 1 Agenda A Brief History of Unix Booting Unix The Unix File System Manipulating Files and Directories Unix Privileges Unix Security - SANS 2001 2 This page intentionally left blank. 2 -2 Agenda cont. Unix Processes Networking System Services Unix Backups Wrap-up Unix Security - SANS 2001 3 This page intentionally left blank. 2 .
