'Effective user id euid' presentation slideshows

Outline

Access Control Concepts Matrix, ACL, Capabilities OS Mechanisms Amoeba Distributed, capabilities Unix File system, Setuid Windows File system, EFS Guidelines for designing a Secure OS. Outline. Overview of OS Functions. Access control. Common Assumption System knows who the user is

844 views • 62 slides

Outline

Access Control Concepts Matrix, ACL, Capabilities OS Mechanisms Amoeba Distributed, capabilities Unix File system, Setuid Windows File system, EFS Guidelines for designing a Secure OS. Outline. Overview of OS Functions. Access control. Common Assumption System knows who the user is

627 views • 62 slides

Exploits Against Software and How To Avoid Them

Exploits Against Software and How To Avoid Them. Nicolas T. Courtois - U niversity C ollege of L ondon. Goals of Attackers. Break In. Stage 1: Get to run some code (even without privileges). Stage 2:

609 views • 48 slides

Introduction to Information Security Lecture 2

592 views • 46 slides

Buffer Overflows : An In-depth Analysis

Buffer Overflows : An In-depth Analysis. Introduction. A buffer overflow occurs when data written to a buffer, due to insufficient bounds checking, corrupts data values in memory addresses adjacent to the allocated buffer. Buffer overflows were understood as early as 1972.

561 views • 38 slides

Chapter 8 Files and User Information Utilities

Chapter 8 Files and User Information Utilities. Logical Partitions. referred to as file systems like a drive in windows world $ df (display filesystems) shows your logical partitions most common are /usr , where binary and executables are stored

296 views • 19 slides

Unix Access Control Basic CE 2

259 views • 13 slides