Multiclient Validation System with Multiboot Image Support Using Preboot Execution Environment (PXE) Technology

A software validation is a confirmation by examination and provisions of objective evidence that software specifications conform to user needs and intended uses, and that the particular requirements implemented through software can be consistently fulfilled. In practise, most of the software validation are done manually, which is not time efficient and hardly to achieve accurate results, especially involving multiple operating s ystem environments. Therefore, the idea of remote boot validation test using Preboot Execution Environment (PXE) protocol is evolved. The objective of this project is basically to design, built and test a Multiclient Validation System with Multiboot Image Support by using PXE protocol. The system would eventually allow client machines to perform validation tests automatically in the different operating system environment. This validation system gives a complete routine check on the compatibility and errors ofthe softwareto hardware devices. The scope of this project is planned to ensure the feasibility of the project to be carried out within thegiven timeframe. This project can be broken downtotwo major stages. The first stage will involve preliminary literature review, design and built a single client validation system to understand the operation of multiboot image support in PXE protocol. Comprehension of system development language like Visual C and JScript is vital since the system coding would be done entirely using those languages. It is envisaged that the major part of the system is designed, built and tested during the first half of the project duration (first semester). The second major stage is to implement the multiclient support feature for the validation system

The Coherent File Distribution Protocol

CFDP is a protocol that takes advantage of the broadcast nature of CSMA networks to speed up simultaneous one-to-many file transfers (e.g., when booting diskless workstations). The CFDP server listens and services requests for entire files or portions thereof. CFDP clients first determine whether the file they are interested in is already being transferred, in which case they "eavesdrop" and load as much of it as they can, or they initiate a new transfer. The clients timeout when the server stops transmitting, and if they are still missing parts of the file they request them with a block-transfer request. CFDP is a back-end protocol a front end is needed to handle naming and security issues. A simple such front end is also presented here

Integração de funções de rede virtualizadas e funções de rede físicas

Network Functions Virtualization (NFV) and Software Defined Networking (SDN) have been in the center of network evolution, promising a more flexible and efficient way of managing networks through the on-demand instantiation of network functions (NFs) and reconfigurability of the network as necessary. Nevertheless, as new mechanisms are developed, such technologies require testing before their adoption into real-world deployments. This is where this dissertation contributes, by proposing and evaluating a system architecture that integrates a physical wireless testbed with a cloud-based environment. This allows physical wireless nodes to become part of the cloud environment, enabling its use and configuration as virtual NFs (VNFs). Results showcased the system feasibility, with the testbed being able to instantiate on-demand virtual and physical NFs, in the physical wireless nodes and in an OpenStack data-center.A Virtualização de Funções de Rede e as Redes Definidas por Software têm estado no centro da evolução das redes, prometendo uma forma mais flexível e eficiente de as gerenciar através da instanciação on-demand de Funções de Rede e da sua reconfiguração conforme o necessário. No entanto, à medida que novos mecanismos são desenvolvidos, é também necessário a realização de testes sobre estas tecnologias antes destas serem adotadas em implementações em contexto real. É aqui que esta dissertação contribui, propondo e avaliando uma arquitetura de sistema que integra um testbed físico sem fios, com um ambiente baseado em nuvem. Isto permite que os nós sem fios físicos se tornem parte do ambiente de nuvem, permitindo o seu uso e configuração como Funções de Rede Virtuais. Os resultados demonstraram a viabilidade do sistema, dada a capacidade da testbed em instanciar Funções de Rede virtuais e físicas quando requisitadas tanto nos nós sem fios físicos quanto no servidor OpenStack.Mestrado em Engenharia Eletrónica e Telecomunicaçõe

A Sorting Hat For Clusters. Dynamic Provisioning of Compute Nodes for Colocated Large Scale Computational Research Infrastructures

Current large scale computational research infrastructures are composed of multitudes of compute nodes fitted with similar or identical hardware. For practical purposes, the deployment of the software operating environment to each compute node is done in an automated fashion. If a data centre hosts more than one of these systems – for example cloud and HPC clusters – it is beneficial to use the same provisioning method for all of them. The uniform provisioning approach unifies administration of the various systems and allows flexible dedication and reconfiguration of computational resources. In particular, we will highlight the requirements on the underlying network infrastructure for unified remote boot but segregated service operations. Building upon this, we will present the Boot Selection Service, allowing for the addition, removal or rededication of a node to a given research infrastructure with a simple reconfiguration

An Implementation of a Cross-Platform Wireless Router Operating System

The aim of this project was to develop an open-source wireless router platform on several Single Board Computers (SBCs) of different architectures. It is a Linux distribution that is common to all supported boards, with Ethernet drivers, Wireless drivers, web-interface, persistent storage of settings, and remote upgrade capability

Gollach : configuration of a cluster based linux virtual server

Includes bibliographical references.This thesis describes the Gollach cluster. The Gollach is an eight machine computing cluster that is aimed at being a general purpose computing resource for research purposes. This includes image processing and simulations. The main quest in this project is to create a cluster server that gives increased computational power and a unified system image (at several levels) without requiring the users to learn specialised tricks. At the same time the cluster must not be tasking to administer

Instal·lar Debian GNU/Linux a SGI Indy

L'objectiu del projecte és instal·lar Debian GNU/Linux a una estació de treball SGI Indy, un ordinador que no té lector de CD ni (el model objecte d'estudi) disposa de disquetera. La novetat d'aquest projecte és que no s'havia instal·lat Debian GNU/Linux en màquines diferents d'un PC. El mètode era utilitzar la connexió de xarxa i comptar amb un altre ordinador. S'havien d'estudiar les possibilitats: bé si es disposava d'un compte d'usuari o bé de majors necessitats. S'ha instal·lat Debian GNU/Linux disposant d'un compte root i utilitzant un servidor DHCP (Dynamic Host Configuration Protocol) i un servidor TFTP (Trivial File Transfer Protocol). Com a resultat es disposa d'un ordinador amb un Sistema Operatiu no propietari i molt més conegut que l'anterior, fet que en facilita les tasques de manteniment i el seu ús com a material educatiu

Multiclient Validation System with Multiboot Image Support Using Preboot Execution Environment (PXE) Technology

A software validation is a confirmation by examination and provisions of objective evidence that software specifications conform to user needs and intended uses, and that the particular requirements implemented through software can be consistently fulfilled. In practise, most of the software validation are done manually, which is not time efficient and hardly to achieve accurate results, especially involving multiple operating s ystem environments. Therefore, the idea of remote boot validation test using Preboot Execution Environment (PXE) protocol is evolved. The objective of this project is basically to design, built and test a Multiclient Validation System with Multiboot Image Support by using PXE protocol. The system would eventually allow client machines to perform validation tests automatically in the different operating system environment. This validation system gives a complete routine check on the compatibility and errors ofthe softwareto hardware devices. The scope of this project is planned to ensure the feasibility of the project to be carried out within thegiven timeframe. This project can be broken downtotwo major stages. The first stage will involve preliminary literature review, design and built a single client validation system to understand the operation of multiboot image support in PXE protocol. Comprehension of system development language like Visual C and JScript is vital since the system coding would be done entirely using those languages. It is envisaged that the major part of the system is designed, built and tested during the first half of the project duration (first semester). The second major stage is to implement the multiclient support feature for the validation system

TransCom: a virtual disk-based cloud computing platform for heterogeneous services

PublishedJournal ArticleThis paper presents the design, implementation, and evaluation of TransCom, a virtual disk (Vdisk) based cloud computing platform that supports heterogeneous services of operating systems (OSes) and their applications in enterprise environments. In TransCom, clients store all data and software, including OS and application software, on Vdisks that correspond to disk images located on centralized servers, while computing tasks are carried out by the clients. Users can choose to boot any client for using the desired OS, including Windows, and access software and data services from Vdisks as usual without consideration of any other tasks, such as installation, maintenance, and management. By centralizing storage yet distributing computing tasks, TransCom can greatly reduce the potential system maintenance and management costs. We have implemented a multi-platform TransCom prototype that supports both Windows and Linux services. The extensive evaluation based on both test-bed experiments and real-usage experiments has demonstrated that TransCom is a feasible, scalable, and efficient solution for successful real-world use. © 2004-2012 IEEE