Systèmes d'exploitation et cloud
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Cours, examens, TD, TP et exercices de systèmes d'exploitation et cloud. Thèmes couverts : Linux, Unix, Windows Server, Docker, Kubernetes, virtualisation.
The document investigates the types of clustering solutions available in the market, emphasizing system administration under GNU/Linux. It involves creating a comparative dossier of clustering software for various Linux distributions. The study ultimately provides tailored clustering solutions for specific distributions like Fedora, Ubuntu, and OpenSUSE.
This document serves as a hands-on guide to learning process management under GNU/Linux. The tasks involve creating and managing multiple processes using shell commands like '&', 'fg', 'bg', 'jobs', and 'kill'. The methodology demonstrates process control, including switching processes between foreground and background, identifying processes by PID, killing processes with various signals, and managing processes detached from the terminal. It culminates with students scripting a process, controlling its behavior, and analyzing its visibility post-disconnection.
This document guides the user through an in-depth study of Linux process management using commands such as 'ps', 'pstree', and 'top'. The tasks involve analyzing process attributes such as user ID, CPU usage, memory consumption, and command initiation time. It also explores parent-child process relationships and includes instructions to determine the most resource-intensive processes. The methodology relies heavily on utilizing the Linux manual (man) and built-in command references to extract and interpret process information.
This document pertains to a Linux filesystem exploration exercise. Participants analyze system directories such as /sbin, /usr/bin, /dev, and /proc to understand their contents and differences. Specific tasks include identifying directory functionalities, interpreting device permissions, and analyzing system files like cpuinfo and meminfo. The goal is to foster a practical understanding of key directory roles and filesystem structures in GNU/Linux environments.
The document focuses on explaining the concept and structure of file systems in GNU/Linux environments. It covers supported file systems in Linux, including a detailed comparison between EXT2, EXT3, and Reiserfs. The activity requires creating a concise report that answers these questions and submitting it in a designated space. The key emphasis is on understanding file system organization and compatibility in Linux systems.
The document provides a detailed guide on installing and configuring a GNU/Linux distribution, including practical activities for understanding operational components such as runlevels, boot scripts, and system configuration files. It explains methods to modify system behavior, including changing default runlevels, setting up new virtual terminals, and initiating mono-user mode. Additionally, it highlights a security vulnerability surrounding root password recovery and suggests countermeasures for administrators to mitigate such risks.
The document outlines a technical lab activity focusing on Linux system administration tasks such as configuring the file '/etc/inittab', managing runlevels, modifying startup scripts, and adding system-specific applications. Key tasks include understanding system boot processes, securing the system against unauthorized root password resets, and testing configurations through reboots. Emphasis is placed on practical implementation, such as modifying boot loader configurations for enhanced security.
The document focuses on understanding key aspects of the GNU/Linux ecosystem. It explores different open-source licenses, such as GPL and Creative Commons, and provides an overview of the shell, its role, and types. It explains how to distinguish between internal and external commands in GNU/Linux using practical examples. Additionally, the document guides the user on command-line operations such as checking the Linux kernel version, changing the system date, and scheduling a system shutdown.
This document delves into virtualization under GNU/Linux by defining its concept and exploring techniques like machine virtualization, OS virtualization, and their applications. It discusses virtualization as the simultaneous functioning of multiple operating systems on a single physical machine, emphasizing resource optimization and security. It highlights use cases, from running legacy applications to server consolidation and software testing. The document further explains the architecture of virtualization solutions, including hypervisors and isolators, and evaluates their performance an...
This document serves as a glossary for the GNU/Linux operating system, detailing technical terminology and concepts such as kernel architecture, distributions, and multi-user functionalities. The methodology systematically introduces each term with definitions, comparative analysis, and application examples. Key findings emphasize the advantages of Linux, including its open-source nature, lack of need for defragmentation, and compatibility across diverse hardware and software environments. Notably, it highlights tools like Samba for Windows interoperability and Synaptic for package management.
The document offers an extensive overview of the GNU/Linux operating system, explaining core concepts, functionalities, and terminologies. It highlights the differences between user roles, software components, and distributions while emphasizing the advantages of open-source development. Practical tools such as package managers, navigation utilities, and graphical environments are described in detail to illustrate system adaptability. The glossary is enriched with both technical definitions and historical context to ensure readers grasp the significance of each term.
The document, created by the Université Virtuelle de Tunis, covers the concept of clustering under the GNU/Linux environment. It specifies various types of clusters available in the market, compares clustering solutions across different Linux distributions, and proposes solutions for clustering on Fedora, Ubuntu, and OpenSUSE. The focus is on providing a systematic approach to clustering management using Linux technologies.
The document is an educational guide centered on the use of text editors, specifically focusing on VI and VIM editors in GNU/Linux systems. It offers detailed instructions on text manipulation commands, modes of operation, and advanced features such as search, replace, and regular expressions. Additionally, the guide discusses Linux documentation systems like manual pages and info pages, emphasizing the importance of accurate and accessible documentation. The text incorporates usage examples, making it a practical resource for system administrators and Linux users.
This document from Université Virtuelle de Tunis provides a detailed glossary focusing on GNU/Linux terminology, explaining key concepts such as root access, distributions, graphical environments, and essential tools like Synaptic and Open Office. It highlights the distinction between Linux as a kernel and GNU/Linux as a complete operating system. Additionally, it emphasizes contributions from the open-source community, discussing utilities like Samba for Windows compatibility and Compiz for graphical enhancements, while maintaining intellectual property protection guidelines.
This document, created by the Université Virtuelle de Tunis, introduces the use of text editors and advanced commands in GNU/Linux. The methodology includes practical exercises for creating, editing, and manipulating text files using VI commands. Learners are tasked to perform operations such as copying, moving, searching, and replacing lines within a file. The findings reinforce user familiarity with core GNU/Linux functionalities, emphasizing command-line efficiency.
This document explores the file system management within GNU/Linux, emphasizing its broader definition of 'file' as typed objects that accommodate operations. Key topics include classification into regular files, directories, special files, symbolic links, FIFOs, and sockets, with specific examples demonstrating their roles. The hierarchical tree-like structure of the GNU/Linux file system is detailed, including mounting mechanisms, paths (absolute and relative), i-nodes, and associated attributes vital for efficient file management.
This document provides a detailed glossary of terms and concepts related to the GNU/Linux operating system. It outlines key methodologies and tools such as command-line interfaces, distributions, and administrative roles. The document emphasizes the contrasts between Linux and other systems like Windows, highlighting features like the lack of defragmentation necessity and the flexibility in environments. It also covers utilities, software tools, and the philosophy of open-source software, aimed at educating users on key functionalities and concepts integral to Linux systems.
This document provides an in-depth study and activity-based learning approach to understanding and applying file system management in GNU/Linux environments. It introduces topics such as file system structure, supported filesystems like EXT2, EXT3, and Reiserfs, and methods to explore directories and permissions. Detailed practical tasks guide readers in mounting filesystems, creating directories and files, managing symbolic and physical links, and interpreting file attributes. The document emphasizes critical Linux commands and encourages analytical thinking through diverse exercises.
This document outlines general characteristics and features of GNU/Linux operating systems, including its kernel, license, structure, and functionality. It provides a series of multi-choice questions (MCQs) to assess understanding of core concepts such as file permissions, user accounts, graphical environments, and commands for managing systems. The document emphasizes the role of fundamental components and commands in GNU/Linux management, as well as the historical and technical aspects of Unix-based systems. Answers to all questions are provided, offering a clear reference for self-assess...
This document serves as an educational glossary covering fundamental concepts and tools related to the GNU/Linux operating system. It provides detailed explanations on various aspects, including administrators' roles, usage of command-line interfaces, and the functionality of distributions, environments, and software tools like Gnome and KDE. The glossary highlights the principles of open-source computing, collaboration among users, and differences between systems like UNIX and GNU/Linux. Additionally, it explains practical tools and utility software used for system management and customiza...
This document discusses the GNU/Linux operating system, emphasizing its open-source licensing under the GPL, which permits access to and modification of its source code. It explores the system’s fundamental characteristics—such as being multi-platform, multi-user, and robust—making it suitable for both academic and industrial applications. Additionally, the document provides an overview of various distributions, their unique features, and practical guidelines for choosing the most suitable one based on user needs. Different graphical and manual interfaces, as well as essential installation...
This document provides an educational outline of the fundamental characteristics of the GNU/Linux operating system and its various distributions. It includes a review of open-source software licenses, the concept and role of the shell, and distinguishes between internal and external commands within the operating system. Additionally, essential system commands are provided, such as those for displaying the Linux kernel version, modifying the system date, and scheduling system shutdowns.
The document explains the evolution of program creation methods, emphasizing modular programming and the efficiency of libraries. Libraries are broken down into static and shared types, detailing their structure, functionalities, and interaction during compilation or execution. The text also focuses on the Linux linker `ld` and its process in linking object modules and resolving dependencies dynamically and statically. Examples cover advantages of shared libraries for saving memory and execution resources in multitasking environments.
This document explores the Wiener Process, commonly known as Brownian Motion, its historical context, and its applications in various fields including finance and communication. It provides a detailed mathematical framework, including definitions and key properties of stochastic processes. The importance of the Wiener Process in modern financial theory is emphasized through examples and rigorous mathematical analysis.























