'Kernel level' diaporamas de présentation

Introducing the Bastille Hardening Assessment Tool Linux World Expo - SFO 2005

Introducing the Bastille Hardening Assessment Tool Linux World Expo - SFO 2005 . Jay Beale Security Consultant Intelguardians Network Intelligence, LLC Lead Developer Bastille Linux Project www.bastille-linux.org/jay/ www.intelguardians.com. Updated Slides. These slides are version 1.1.

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Lecture 2: UNIX STRUCTURE

Lecture 2: UNIX STRUCTURE. UNIX. User Interface. The layers of a UNIX system. Essential Unix Architecture. Applications. System Libraries (libc). System Call Interface. I/O Related. Process Related. File Systems. Scheduler. Modules. Networking. Memory Management. Device Drivers.

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Processes, Threads and Virtualization

Processes, Threads and Virtualization. Chapter 3.1-3.2 The role of processes in distributed systems. Introduction. To be efficient, a client/server system can use asynchronous communication to overlap communication latencies with local processing. Structure processes with multiple threads

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Threads, SMP, and Microkernels

Operating Systems. Threads, SMP, and Microkernels. Processes and Threads. So far, presented the concept of process as embodying: Resource ownership : process includes a virtual address space to hold the process image

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Abusing Duqu, Flame, MiniFlame

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Threads, SMP, and Microkernels

Threads, SMP, and Microkernels. Chapter 4. Process. Resource ownership - process includes a virtual address space to hold the process image Scheduling/execution- follows an execution path that may be interleaved with other processes

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Threads, SMP, and Microkernels

Threads, SMP, and Microkernels. Chapter 4. Process. Resource ownership - process includes a virtual address space to hold the process image Scheduling/execution- follows an execution path that may be interleaved with other processes

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Operating Systems

Operating Systems. Threads Implementation. Multithreading vs. Single threading. Single threading: when the OS does not recognize the concept of thread. Multithreading: when the OS supports multiple threads of execution within a single process.

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Kernel-level Measurement for Integrated Parallel Performance Views KTAU: Kernel - TAU

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Security of Mobile Devices

Security of Mobile Devices. Lon Kastenson. Agenda. Overview Types of attacks Security in Android Security in iOS Security in other mobile platforms Current protocols and solutions Security in the future Questions. Overview: History. June 2004: Cabir The Evolution after Cabir

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Kernel-level Measurement for Integrated Parallel Performance Views

Kernel-level Measurement for Integrated Parallel Performance Views. A. Nataraj, A. Malony, S. Shende, A. Morris {anataraj,malony,sameer,amorris}@cs.uoregon.edu Performance Research Lab University of Oregon. Motivation. Application performance is a consequence of User-level execution

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Project 0: Linux & Virtual Machine Dabbling

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Process switching in UNIX

Process switching in UNIX. each process has a kernel stack which is accessible only to the kernel but is part of the process image each process has a page table which maps both its memory image and the kernel memory image

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Realizing Concurrency using Posix Threads (pthreads)

Realizing Concurrency using Posix Threads (pthreads). B. Ramamurthy. Introduction. A thread refers to a thread of control flow: an independent sequence of execution of program code.

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Chapter 4: Threads

Chapter 4: Threads. Single and Multithreaded Processes. Benefits. Responsiveness One part of a program can continue running even if another part is blocked Resource Sharing Threads of the same process share the same memory space and resources. Economy

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Lecture 6: Threads Chapter 4

Lecture 6: Threads Chapter 4. Single and Multithreaded Processes. Multithreaded Server Architecture. Benefits of multi-threaded programming: Responsiveness Resource sharing Economy (Solaris example: 30X > expensive to create a process, 5X > expensive to context-switch processes)

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High Accuracy Attack Provenance via Binary-based Execution Partition

20 th NDSS ( February, 2013 ). High Accuracy Attack Provenance via Binary-based Execution Partition. Kyu Hyung Lee Xiangyu Zhang Dongyan Xu Department of Computer Science and CERIAS, Purdue University. See Author Slide for Some Pages. Author Slide

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CS 3204 Operating Systems

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Threads

Threads. A thread is an alternative model of program execution A process creates a thread through a system call Thread operates within process context Use of threads effectively splits the process state into two parts Resource state remains with process CPU state is associated with thread

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