Chrome OS is an open-source operating system developed by Google that is based on the Google Chrome browser. It is designed to work exclusively with web applications. The OS uses a Chromium-based browser and window manager as its main components. Security is a key focus, with features like verified boot, encrypted storage, and sandboxing of web applications. Chrome OS is lightweight and fast-booting, making it well-suited for netbooks and other low-power devices. While it depends on internet access, its simplicity and low hardware requirements could make it appealing for internet-focused users.
In this session, DiĂłgenes gives an introduction of the basic concepts that make OpenShift, giving special attention to its relationship with Linux containers and Kubernetes.
Managing Updates with System Center Configuration Manager 2012JasonCondo
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The document discusses managing software updates with System Center Configuration Manager R2. It covers common patch management approaches, the security review/approval process, an overview of the Configuration Manager software update point role, tips for ongoing management of updates, and troubleshooting techniques. The software update point allows for acquiring, assigning risk levels, assessing, applying, and assimilating software updates across an organization's devices.
The document provides step-by-step instructions for installing VMware ESXi 6.0 on a server. It first lists the minimum hardware requirements including supported server hardware, CPUs, RAM, network adapters and storage. It then outlines the interactive installation process using a CD/DVD including selecting options, providing passwords, configuring networking and applying changes. Once complete, the vSphere client can be used to manage the new ESXi host.
CICS Transaction Gateway V9.1 OverviewRobert Jones
Â
CICS TG V9.1 enables simple and rapid mobile integration of your enterprise CICS Transaction Server (CICS TS) family or TXSeries⢠environment. You can build on your existing, proven architecture to quickly provide mobile connectivity to back-end systems by using JavaScript⢠Object Notation (JSON) web services.
A complete overview of the IBM CICS Transaction Gateway V9.1 products:
CICS Transaction Gateway for z/OS V9.1
CICS Transaction Gateway for Multiplatforms V9.1
CICS Transaction Gateway Desktop Edition V9.1
Product datasheet: https://ibm.biz/cicstg91datasheet
Explore more about:
Âť Why Upgrade to Windows Server 2016?
Âť Nano Server
Âť Containers
Âť Hyper-V Improvements
Âť PowerShell Direct
Âť Demonstrations and Offers
In this session, DiĂłgenes gives an introduction of the basic concepts that make OpenShift, giving special attention to its relationship with Linux containers and Kubernetes.
Managing Updates with System Center Configuration Manager 2012JasonCondo
Â
The document discusses managing software updates with System Center Configuration Manager R2. It covers common patch management approaches, the security review/approval process, an overview of the Configuration Manager software update point role, tips for ongoing management of updates, and troubleshooting techniques. The software update point allows for acquiring, assigning risk levels, assessing, applying, and assimilating software updates across an organization's devices.
The document provides step-by-step instructions for installing VMware ESXi 6.0 on a server. It first lists the minimum hardware requirements including supported server hardware, CPUs, RAM, network adapters and storage. It then outlines the interactive installation process using a CD/DVD including selecting options, providing passwords, configuring networking and applying changes. Once complete, the vSphere client can be used to manage the new ESXi host.
CICS Transaction Gateway V9.1 OverviewRobert Jones
Â
CICS TG V9.1 enables simple and rapid mobile integration of your enterprise CICS Transaction Server (CICS TS) family or TXSeries⢠environment. You can build on your existing, proven architecture to quickly provide mobile connectivity to back-end systems by using JavaScript⢠Object Notation (JSON) web services.
A complete overview of the IBM CICS Transaction Gateway V9.1 products:
CICS Transaction Gateway for z/OS V9.1
CICS Transaction Gateway for Multiplatforms V9.1
CICS Transaction Gateway Desktop Edition V9.1
Product datasheet: https://ibm.biz/cicstg91datasheet
Explore more about:
Âť Why Upgrade to Windows Server 2016?
Âť Nano Server
Âť Containers
Âť Hyper-V Improvements
Âť PowerShell Direct
Âť Demonstrations and Offers
Docker is a popular container platform that provides namespaces, cgroups, capabilities and seccomp to isolate containers. However, it still faces security risks from vulnerabilities in container images, the Linux kernel it relies on, and misconfigurations of the Docker daemon or container management platforms like Kubernetes. Attackers can exploit these issues to escape containers, gain privileges on the host, or access container content without authorization. Careful auditing of Docker and container configurations is needed to prevent security breaches.
This document provides an overview of Prometheus and Percona Monitoring and Management (PMM). It discusses that Prometheus is an open-source monitoring system that uses a pull-based model to collect and store time-series data and can be used for metrics collection, storage, alerting and visualization. It then introduces PMM as an open-source platform built on Prometheus for managing and monitoring MySQL and MongoDB performance. The document concludes with a demo of using PMM.
The document provides an overview of the Zabbix monitoring platform. It discusses why monitoring is needed, compares Zabbix to other monitoring tools like Nagios, Prometheus, and PRTG, and describes Zabbix's features including data gathering, alerting, graphing, templates, and architecture. The document also covers Zabbix agents, proxies, notifications, and common use cases for server and service monitoring.
Red Hat OpenShift 4 allows for automated and customized deployments. The Full Stack Automation method fully automates installation and updates of both the OpenShift platform and Red Hat Enterprise Linux CoreOS host operating system. The Pre-existing Infrastructure method allows OpenShift to be deployed on user-managed infrastructure, where the customer provisions resources like load balancers and DNS. Both methods use the openshift-install tool to generate ignition configs and monitor the cluster deployment.
July OpenNTF Webinar - HCL Presents Keep, a new API for DominoHoward Greenberg
Â
In 2019 the HCL Labs reimagined how a REST API for Domino should look like. The initial prototype was shared with selected customers and partner. Based on the feedback, Project KEEP will ship together with Domino.
KEEP allows applications to interact with Domino servers using simple HTTP calls directly from a browser, desktop or mobile app, or with a application server in the middle. To make this API accessible to a large audience open standards like OpenAPI or JWT were chosen over propriety implementations.
This session will introduce KEEP and the design principles and use cases. Data security and ease of use will be highlighted. Warm up your Postman clients and curl command lines and follow along!
The presenters for this session will be Stephan Wissel and Paul Withers from HCL.
KVM High Availability Regardless of Storage - Gabriel Brascher, VP of Apache ...ShapeBlue
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Having High Availability enabled for KVM Hosts can improve greatly the QoS by handling (fence/recover) a problematic Host as well as re-starting its stopped VMs on healthy hosts. However, there is a limitation on CloudStack HA for KVM; it relies mainly on NFS heartbeat script checks. This Talk illustrates how CloudStack HA works for KVM hosts and it presents a way of improving its implementation in a way that KVM HA works with any storage system pluggable on KVM, not just NFS.
About Gabriel Brasher - https://blogs.apache.org/cloudstack/
------------------------------------------
CloudStack European User Group Virtual happened on May 27th. The first CSEUG Virtual proved to be a huge success. It collected people from 23 countries â Germany, the United Kingdom, Switzerland, India, Bulgaria, Greece, Poland, Serbia, Brazil, Chile, Russia, USA, Canada, Japan, France, Uruguay, Korea âŚ
We also had a record number of registrations and attendees for a CloudStack User Group Event. The physical distance was not a stopper for our speakers, who joined the event from 6 different countries.
------------------------------------------
About CloudStack: https://cloudstack.apache.org/
Session Description:
An early overview of the upcoming new and exciting features and improvements in the next major LTS release of CloudStack, 4.19. Abhishek Kumar, who will be acting as the release manager for the CloudStack 4.19, gives a quick recap of the major additions in the previous LTS release - 4.18.0, discusses the timeline for the 4.19.0 release and talks about the planned and expected new features in the upcoming release.
Speaker Bio:
Abhishek is a committer of the Apache CloudStack project and has worked on the notable features such as VM ingestion, CloudStack Kubernetes Service, IPv6 support, etc. He works as a Software Engineer at ShapeBlue.
---------------------------------------------
On Friday 18th August, the Apache CloudStack India User Group 2023 took place in Bangalore, seeing CloudStack enthusiasts, experts, and industry leaders from across the country, discuss the open-source project. The meetup served as a vibrant platform to delve into the depths of Apache CloudStack, share insights, and forge new connections.
- vSphere is VMware's virtualization platform consisting of ESXi hypervisor software and vCenter Server management platform.
- ESXi abstracts physical server resources like CPUs, memory, storage and networking and shares them among virtual machines (VMs).
- VMs can use resources from ESXi hosts without being dependent on specific physical hardware, and are isolated from each other on the same host.
- vSphere allows organizations to reduce IT costs through more efficient use of server resources and easier management of VMs compared to physical machines.
Virtualization Forum 2015, Praha, 7.10.2015
sĂĄl A
JestliĹže SlideShare nezobrazĂ prezentaci korektnÄ, mĹŻĹžete si ji stĂĄhnout ve formĂĄtu .ppsx nebo .pdf.
This document presents information about Google Chrome OS, including its introduction, specifications, features, security overview, software architecture, and comparison to Windows. Google Chrome OS is a Linux-based operating system developed by Google to be simple, fast, and secure. It is optimized for web applications and includes automatic updates. The key aspects are speed, simplicity, security, and its web-centric design. Pros include free of cost, virus protection, and fast boot time, while cons are reliance on internet and lack of support for some devices and file management.
VMware HCX provides infrastructure hybridity and workload mobility between on-premises and cloud environments. It uses components like the HCX Manager, interconnects, and network extensions to optimize WAN traffic, extend networks between sites, and enable live migration of workloads without disruption. HCX addresses challenges customers face when moving workloads to hybrid and multi-cloud environments like application dependencies, cross-site networking issues, and business disruption.
CloudStack - Top 5 Technical Issues and TroubleshootingShapeBlue
Â
Cloudstack Top 5 technical issues and troubleshooting. Cloudstack is a mature product in use by companies world-wide. While being associated with CloudStack development for over 5 years, Abhi has come across some technical issues that once in a while affect the CloudStack deployment. This presentation is an effort to put together top 5 such issues, analyze their symptoms, see them from CloudStack architecture perspective and from the distributed nature of cloud orchestration, then look at ways to avoid them and finally be able to troubleshoot if they occur.
Google Chrome OS is an open-source operating system designed by Google to work exclusively with web applications. It is based on the Linux kernel and can only run on specific hardware. The OS is focused on being fast, simple, and secure. It loads in only a few seconds and keeps users' data in the cloud rather than on a hard drive. Google hopes Chrome OS will make the browser and web the center of users' computing experience.
This document provides an overview of the modules covered in the MCP Exam 70-672 Preparation course. Module 1 focuses on product licensing and covers topics like product use rights, volume licensing models, desktop applications like Office 2010, desktop operating systems like Windows 7, server operating systems, client access licenses, and management servers. Future modules will cover program licensing, software assurance, and exam scenarios. The exam itself is 3 hours long.
VMware introduced their Tanzu portfolio for building, running, and managing modern applications on Kubernetes. The presentation included an overview of Tanzu and its components, including how vSphere 7 integrates Kubernetes and Tanzu Kubernetes Grid for deploying and managing Kubernetes clusters. It also described Tanzu Mission Control for centralized management of multiple Kubernetes clusters across different platforms and clouds through consistent policies, visibility, and control.
Microsoft 365 UG Windows Autopilot 1st May 2019Andrew Bettany
Â
Windows Autopilot: Gamechanger or Gimmick?
Let Andrew Bettany, MVP, present and discuss how Windows Autopilot can be used to efficiently deploy your Windows 10 devices into your Modern Workplace.
1) Google Chrome OS is an open source operating system designed by Google to run exclusively on web applications using specifically designed hardware based on Linux.
2) Key features include ultra-fast boot times of less than 7 seconds, relying on cloud storage rather than local storage, and a simplified interface focused on web applications.
3) The architecture has three main components - the Chromium-based browser and window manager, system level software and services, and firmware. It is designed for netbooks and tablets with an interface optimized for web use.
Google Chrome is a web browser developed by Google that is fast, simple, and secure. It is available across multiple platforms including Windows, Mac, Linux, Android, and iOS. Chrome updates automatically and is designed to load web pages quickly. Chromebooks are laptops that run Chrome OS, a lightweight operating system built on open source software. Chrome OS focuses on web-based applications and stores user data in the cloud.
Chrome OS is a Linux-based operating system designed by Google to work exclusively with web apps. It has no built-in apps and loads directly into the Chrome browser, providing instant web access. All information is synchronized to the cloud, making it accessible from any device connected to the network. As apps are web-based, there is no need to update, install, or uninstall them. The OS uses a three-tier architecture with firmware for fast booting, system software and services, and the Chromium browser and window manager. It focuses on being lightweight, simple to use, and suitable for net-based systems.
Docker is a popular container platform that provides namespaces, cgroups, capabilities and seccomp to isolate containers. However, it still faces security risks from vulnerabilities in container images, the Linux kernel it relies on, and misconfigurations of the Docker daemon or container management platforms like Kubernetes. Attackers can exploit these issues to escape containers, gain privileges on the host, or access container content without authorization. Careful auditing of Docker and container configurations is needed to prevent security breaches.
This document provides an overview of Prometheus and Percona Monitoring and Management (PMM). It discusses that Prometheus is an open-source monitoring system that uses a pull-based model to collect and store time-series data and can be used for metrics collection, storage, alerting and visualization. It then introduces PMM as an open-source platform built on Prometheus for managing and monitoring MySQL and MongoDB performance. The document concludes with a demo of using PMM.
The document provides an overview of the Zabbix monitoring platform. It discusses why monitoring is needed, compares Zabbix to other monitoring tools like Nagios, Prometheus, and PRTG, and describes Zabbix's features including data gathering, alerting, graphing, templates, and architecture. The document also covers Zabbix agents, proxies, notifications, and common use cases for server and service monitoring.
Red Hat OpenShift 4 allows for automated and customized deployments. The Full Stack Automation method fully automates installation and updates of both the OpenShift platform and Red Hat Enterprise Linux CoreOS host operating system. The Pre-existing Infrastructure method allows OpenShift to be deployed on user-managed infrastructure, where the customer provisions resources like load balancers and DNS. Both methods use the openshift-install tool to generate ignition configs and monitor the cluster deployment.
July OpenNTF Webinar - HCL Presents Keep, a new API for DominoHoward Greenberg
Â
In 2019 the HCL Labs reimagined how a REST API for Domino should look like. The initial prototype was shared with selected customers and partner. Based on the feedback, Project KEEP will ship together with Domino.
KEEP allows applications to interact with Domino servers using simple HTTP calls directly from a browser, desktop or mobile app, or with a application server in the middle. To make this API accessible to a large audience open standards like OpenAPI or JWT were chosen over propriety implementations.
This session will introduce KEEP and the design principles and use cases. Data security and ease of use will be highlighted. Warm up your Postman clients and curl command lines and follow along!
The presenters for this session will be Stephan Wissel and Paul Withers from HCL.
KVM High Availability Regardless of Storage - Gabriel Brascher, VP of Apache ...ShapeBlue
Â
Having High Availability enabled for KVM Hosts can improve greatly the QoS by handling (fence/recover) a problematic Host as well as re-starting its stopped VMs on healthy hosts. However, there is a limitation on CloudStack HA for KVM; it relies mainly on NFS heartbeat script checks. This Talk illustrates how CloudStack HA works for KVM hosts and it presents a way of improving its implementation in a way that KVM HA works with any storage system pluggable on KVM, not just NFS.
About Gabriel Brasher - https://blogs.apache.org/cloudstack/
------------------------------------------
CloudStack European User Group Virtual happened on May 27th. The first CSEUG Virtual proved to be a huge success. It collected people from 23 countries â Germany, the United Kingdom, Switzerland, India, Bulgaria, Greece, Poland, Serbia, Brazil, Chile, Russia, USA, Canada, Japan, France, Uruguay, Korea âŚ
We also had a record number of registrations and attendees for a CloudStack User Group Event. The physical distance was not a stopper for our speakers, who joined the event from 6 different countries.
------------------------------------------
About CloudStack: https://cloudstack.apache.org/
Session Description:
An early overview of the upcoming new and exciting features and improvements in the next major LTS release of CloudStack, 4.19. Abhishek Kumar, who will be acting as the release manager for the CloudStack 4.19, gives a quick recap of the major additions in the previous LTS release - 4.18.0, discusses the timeline for the 4.19.0 release and talks about the planned and expected new features in the upcoming release.
Speaker Bio:
Abhishek is a committer of the Apache CloudStack project and has worked on the notable features such as VM ingestion, CloudStack Kubernetes Service, IPv6 support, etc. He works as a Software Engineer at ShapeBlue.
---------------------------------------------
On Friday 18th August, the Apache CloudStack India User Group 2023 took place in Bangalore, seeing CloudStack enthusiasts, experts, and industry leaders from across the country, discuss the open-source project. The meetup served as a vibrant platform to delve into the depths of Apache CloudStack, share insights, and forge new connections.
- vSphere is VMware's virtualization platform consisting of ESXi hypervisor software and vCenter Server management platform.
- ESXi abstracts physical server resources like CPUs, memory, storage and networking and shares them among virtual machines (VMs).
- VMs can use resources from ESXi hosts without being dependent on specific physical hardware, and are isolated from each other on the same host.
- vSphere allows organizations to reduce IT costs through more efficient use of server resources and easier management of VMs compared to physical machines.
Virtualization Forum 2015, Praha, 7.10.2015
sĂĄl A
JestliĹže SlideShare nezobrazĂ prezentaci korektnÄ, mĹŻĹžete si ji stĂĄhnout ve formĂĄtu .ppsx nebo .pdf.
This document presents information about Google Chrome OS, including its introduction, specifications, features, security overview, software architecture, and comparison to Windows. Google Chrome OS is a Linux-based operating system developed by Google to be simple, fast, and secure. It is optimized for web applications and includes automatic updates. The key aspects are speed, simplicity, security, and its web-centric design. Pros include free of cost, virus protection, and fast boot time, while cons are reliance on internet and lack of support for some devices and file management.
VMware HCX provides infrastructure hybridity and workload mobility between on-premises and cloud environments. It uses components like the HCX Manager, interconnects, and network extensions to optimize WAN traffic, extend networks between sites, and enable live migration of workloads without disruption. HCX addresses challenges customers face when moving workloads to hybrid and multi-cloud environments like application dependencies, cross-site networking issues, and business disruption.
CloudStack - Top 5 Technical Issues and TroubleshootingShapeBlue
Â
Cloudstack Top 5 technical issues and troubleshooting. Cloudstack is a mature product in use by companies world-wide. While being associated with CloudStack development for over 5 years, Abhi has come across some technical issues that once in a while affect the CloudStack deployment. This presentation is an effort to put together top 5 such issues, analyze their symptoms, see them from CloudStack architecture perspective and from the distributed nature of cloud orchestration, then look at ways to avoid them and finally be able to troubleshoot if they occur.
Google Chrome OS is an open-source operating system designed by Google to work exclusively with web applications. It is based on the Linux kernel and can only run on specific hardware. The OS is focused on being fast, simple, and secure. It loads in only a few seconds and keeps users' data in the cloud rather than on a hard drive. Google hopes Chrome OS will make the browser and web the center of users' computing experience.
This document provides an overview of the modules covered in the MCP Exam 70-672 Preparation course. Module 1 focuses on product licensing and covers topics like product use rights, volume licensing models, desktop applications like Office 2010, desktop operating systems like Windows 7, server operating systems, client access licenses, and management servers. Future modules will cover program licensing, software assurance, and exam scenarios. The exam itself is 3 hours long.
VMware introduced their Tanzu portfolio for building, running, and managing modern applications on Kubernetes. The presentation included an overview of Tanzu and its components, including how vSphere 7 integrates Kubernetes and Tanzu Kubernetes Grid for deploying and managing Kubernetes clusters. It also described Tanzu Mission Control for centralized management of multiple Kubernetes clusters across different platforms and clouds through consistent policies, visibility, and control.
Microsoft 365 UG Windows Autopilot 1st May 2019Andrew Bettany
Â
Windows Autopilot: Gamechanger or Gimmick?
Let Andrew Bettany, MVP, present and discuss how Windows Autopilot can be used to efficiently deploy your Windows 10 devices into your Modern Workplace.
1) Google Chrome OS is an open source operating system designed by Google to run exclusively on web applications using specifically designed hardware based on Linux.
2) Key features include ultra-fast boot times of less than 7 seconds, relying on cloud storage rather than local storage, and a simplified interface focused on web applications.
3) The architecture has three main components - the Chromium-based browser and window manager, system level software and services, and firmware. It is designed for netbooks and tablets with an interface optimized for web use.
Google Chrome is a web browser developed by Google that is fast, simple, and secure. It is available across multiple platforms including Windows, Mac, Linux, Android, and iOS. Chrome updates automatically and is designed to load web pages quickly. Chromebooks are laptops that run Chrome OS, a lightweight operating system built on open source software. Chrome OS focuses on web-based applications and stores user data in the cloud.
Chrome OS is a Linux-based operating system designed by Google to work exclusively with web apps. It has no built-in apps and loads directly into the Chrome browser, providing instant web access. All information is synchronized to the cloud, making it accessible from any device connected to the network. As apps are web-based, there is no need to update, install, or uninstall them. The OS uses a three-tier architecture with firmware for fast booting, system software and services, and the Chromium browser and window manager. It focuses on being lightweight, simple to use, and suitable for net-based systems.
This document discusses ongoing security for embedded Linux devices. It describes Timesys' security notification service which monitors Common Vulnerabilities and Exposures (CVEs) and notifies customers of relevant issues. The service filters CVE data, disambiguates package names, and flags false positives. Notifications are sent via a RESTful API or through a LinuxLink user account. The meta-timesys layer integrates these security features into builds using OpenEmbedded RPB BSP. Ongoing security helps minimize known vulnerabilities over the product lifecycle.
Chrome OS is an operating system developed by Google based on the Linux kernel. It uses the Google Chrome browser as its primary interface and focuses on cloud storage and web applications. Chromebooks running Chrome OS boot very quickly, in 5-7 seconds, and rely on being constantly connected to the internet for apps and storage via a user's Google account. Chrome OS emphasizes security through sandboxing each web page and app and verifying the OS hasn't been tampered with each startup. However, it has limited offline storage and support for non-web programs.
This Presentation Deals with Google Chrome Os, Its Features, Android, Chrome OS vs Windows , Android Description, Kitkat, Lolipop, Computer Technology And Lot More A must See
[CB19] Attacking DRM subsystem to gain kernel privilege on Chromebooks by Di ...CODE BLUE
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Chromebook is one of the most secure laptops so far. It is running the Linux-based Chrome OS as its operation system. Google Chrome team has applied many effective mitigations on Chrome OS and will also release security updates for it every a few weeks.
At the beginning of this year, my colleagues planned to build a full exploit chain to achieve code execution on Chromebook remotely and persistently, which is very challenging. I joined their project in middle stage,attempted to find bugs for local privilege escalation in limited time, and finally contributed a kernel vulnerability on Chrome OS to finish the full chain.
The Direct Rendering Manager (DRM) is a subsystem of the Linux kernel, exposes an API that user-space programs can use to send commands and data to the GPU, and to perform operations such as configuring the mode setting of the display. Meanwhile,DRM is also an awesome attack surface for attackers to escalate local privilege on Linux.
In this talk, Iâm going to share the full story of exploiting a new DRM vulnerability on Chrome OS. First, Iâll introduce the implementation of DRM subsystem briefly,and explain why a kernel exploit is helpful for us to bypass some mitigations like âVerified Bootâ on Chrome OS. Second, Iâll describe how I found the kernel bug on DRM in very limited time. After that, Iâll show you how to exploit an integer overflow, bypass the annoying mitigation âHARDENED_USERCOPYâ in Linux kernel and successfully gain root privilege. At the end there will also be a demonstration of this exploit, as a proof of content.
The document provides information about computer basics, virtual machines, and CyberPatriot's national youth cyber education program. It defines key computer components like the CPU, RAM, and storage. It also explains what a virtual machine is, the terminology associated with VMs, and advantages and disadvantages of using virtual machines. Finally, it gives instructions on opening and using a VM image for the CyberPatriot competition.
Windows 7 professional Vs Windows 7 enterprise247infotech
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The document compares Windows 7 Pro and Windows 7 Enterprise, highlighting additional features in Windows 7 Enterprise such as BitLocker, BitLocker To Go, AppLocker, booting from VHDs, BranchCache, and DirectAccess. BitLocker provides full disk encryption while AppLocker allows restricting applications. Booting from VHDs enables testing configurations without affecting the main OS. BranchCache and DirectAccess improve remote access performance and security by caching content locally and enabling VPN-less internet access.
The document discusses Trusted Platform Modules (TPMs), which are chips integrated into platforms that are intended to provide more security. TPMs can securely store encryption keys and perform cryptographic operations to establish trust. They aim to prevent compromise by malicious software. However, TPMs also enable new capabilities for digital rights management and attestation that could potentially be abused by software vendors. While TPMs may increase security for corporations and governments, they reduce user control and privacy.
Michael Omondi presented how to set up a RouterOS network in GNS3. He introduced himself and his company, Lockstep IT. The goal is to provide knowledge to run RouterOS comfortably in GNS3. He explained the key components needed - RouterOS CHR VM, GNS3 emulator, and QEMU virtualization. He demonstrated importing the CHR VM into GNS3, configuring templates, and building a sample network with BGP and OSPF routing and firewall security. CHR projects can be migrated to other systems or production as needed.
This document provides an overview of operating systems and covers topics such as the characteristics, basic functions, types, installation, and customization of operating systems. It discusses desktop and network operating systems like Windows, Mac OS, and Linux. The document explains how to select an operating system based on customer needs, install and upgrade operating systems, set up user accounts, and navigate the Windows desktop interface. It also covers operating system directories, files, virtualization, and troubleshooting techniques.
This document provides an overview of the Linux kernel boot process and kernel development. It discusses the BIOS boot process, the Master Boot Record (MBR), bootloaders like GRUB, how the kernel image gets loaded into memory, and the initial kernel initialization in real mode. It also covers kernel architecture, virtual memory initialization, and moving from real mode to protected mode. Additional topics include the Linux kernel source code tree, different kernel architectures, and kernel security issues.
Faults inside system software were analyzed, with a focus on diagnosing faults in device drivers. Approaches to deal with faulty drivers included runtime isolation and static analysis. Runtime isolation involves running each driver in a separate process or virtual machine to isolate failures. Static analysis techniques inspect source code for issues like concurrency errors, protocol violations, and invalid register values without needing to execute the code. The talk provided statistics on driver faults, discussed the Linux driver model and common bug causes, and outlined techniques like instrumentation and specification-based development to improve driver correctness and security.
Chrome OS is an operating system developed by Google that is based on the Linux kernel. It is designed to be lightweight and run web applications from the cloud. Some key points:
- Chrome OS focuses on web-based applications and stores all data in the cloud rather than locally. This allows it to boot very quickly and be secure since losing the physical device does not mean losing data.
- The interface is web-based and integrates with Google services. Applications can be accessed through the Google Chrome Web Store.
- It is open source and designed to be low cost to run on low-powered hardware like netbooks given its lightweight and cloud-focused nature. Regular updates also keep it secure.
Booting Android: bootloaders, fastboot and boot imagesChris Simmonds
Â
This document discusses booting Android devices. It covers Android boot images, bootloaders, fastboot protocol, and file systems used for different types of flash memory in Android devices. The key topics covered include bootloaders loading the boot and recovery images, the fastboot protocol for flashing and debugging, and file systems like ext4, f2fs, yaffs2 used on different flash chips like eMMC, SD cards, and raw NAND flash.
There are many ways to keep track of your IT inventory. We have experienced great success with an Open Source solution that can automate the process of managing the inventory of a network. It can tell you what is on your network, how it is configured and when it changes. It works with Windows, Mac and Linux systems and can be customized to work in most network environments.
This document discusses the Trusted Platform Module (TPM) and how it can be used to establish trust in computing platforms. The TPM is a chip that is included in many laptops and PCs to securely store keys, passwords, and digital certificates and to authenticate hardware. It helps address challenges in bootstrapping trust through features like cryptographically signing software components during the boot process and platform configuration registers that record system states. Examples of how TPM is used include trusted boot, disk encryption via BitLocker, and remote attestation of a system's software state.
This document summarizes key points about installing and managing workstations and client machines on a network. It discusses various methods for installing operating systems, such as locally, using Windows Automated Installation Kit (AIK), or deploying images via the network or servers. Maintaining consistency across workstations is important. The document also outlines the life cycle of a workstation and challenges around configuring systems and addressing entropy over time. Integrating Linux clients is briefly addressed.
Main news related to the CCS TSI 2023 (2023/1695)Jakub Marek
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An English đŹđ§ translation of a presentation to the speech I gave about the main changes brought by CCS TSI 2023 at the biggest Czech conference on Communications and signalling systems on Railways, which was held in Clarion Hotel Olomouc from 7th to 9th November 2023 (konferenceszt.cz). Attended by around 500 participants and 200 on-line followers.
The original Czech đ¨đż version of the presentation can be found here: https://www.slideshare.net/slideshow/hlavni-novinky-souvisejici-s-ccs-tsi-2023-2023-1695/269688092 .
The videorecording (in Czech) from the presentation is available here: https://youtu.be/WzjJWm4IyPk?si=SImb06tuXGb30BEH .
Dandelion Hashtable: beyond billion requests per second on a commodity serverAntonios Katsarakis
Â
This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
The Microsoft 365 Migration Tutorial For Beginner.pptxoperationspcvita
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This presentation will help you understand the power of Microsoft 365. However, we have mentioned every productivity app included in Office 365. Additionally, we have suggested the migration situation related to Office 365 and how we can help you.
You can also read: https://www.systoolsgroup.com/updates/office-365-tenant-to-tenant-migration-step-by-step-complete-guide/
Monitoring and Managing Anomaly Detection on OpenShift.pdfTosin Akinosho
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Monitoring and Managing Anomaly Detection on OpenShift
Overview
Dive into the world of anomaly detection on edge devices with our comprehensive hands-on tutorial. This SlideShare presentation will guide you through the entire process, from data collection and model training to edge deployment and real-time monitoring. Perfect for those looking to implement robust anomaly detection systems on resource-constrained IoT/edge devices.
Key Topics Covered
1. Introduction to Anomaly Detection
- Understand the fundamentals of anomaly detection and its importance in identifying unusual behavior or failures in systems.
2. Understanding Edge (IoT)
- Learn about edge computing and IoT, and how they enable real-time data processing and decision-making at the source.
3. What is ArgoCD?
- Discover ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes, and its role in deploying applications on edge devices.
4. Deployment Using ArgoCD for Edge Devices
- Step-by-step guide on deploying anomaly detection models on edge devices using ArgoCD.
5. Introduction to Apache Kafka and S3
- Explore Apache Kafka for real-time data streaming and Amazon S3 for scalable storage solutions.
6. Viewing Kafka Messages in the Data Lake
- Learn how to view and analyze Kafka messages stored in a data lake for better insights.
7. What is Prometheus?
- Get to know Prometheus, an open-source monitoring and alerting toolkit, and its application in monitoring edge devices.
8. Monitoring Application Metrics with Prometheus
- Detailed instructions on setting up Prometheus to monitor the performance and health of your anomaly detection system.
9. What is Camel K?
- Introduction to Camel K, a lightweight integration framework built on Apache Camel, designed for Kubernetes.
10. Configuring Camel K Integrations for Data Pipelines
- Learn how to configure Camel K for seamless data pipeline integrations in your anomaly detection workflow.
11. What is a Jupyter Notebook?
- Overview of Jupyter Notebooks, an open-source web application for creating and sharing documents with live code, equations, visualizations, and narrative text.
12. Jupyter Notebooks with Code Examples
- Hands-on examples and code snippets in Jupyter Notebooks to help you implement and test anomaly detection models.
HCL Notes and Domino License Cost Reduction in the World of DLAUpanagenda
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Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Donât worry, we can help with all of this!
Weâll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. Weâll provide examples and solutions for those as well. And naturally weâll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
[OReilly Superstream] Occupy the Space: A grassroots guide to engineering (an...Jason Yip
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The typical problem in product engineering is not bad strategy, so much as âno strategyâ. This leads to confusion, lack of motivation, and incoherent action. The next time you look for a strategy and find an empty space, instead of waiting for it to be filled, I will show you how to fill it in yourself. If youâre wrong, it forces a correction. If youâre right, it helps create focus. Iâll share how Iâve approached this in the past, both what works and lessons for what didnât work so well.
Northern Engraving | Nameplate Manufacturing Process - 2024Northern Engraving
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Manufacturing custom quality metal nameplates and badges involves several standard operations. Processes include sheet prep, lithography, screening, coating, punch press and inspection. All decoration is completed in the flat sheet with adhesive and tooling operations following. The possibilities for creating unique durable nameplates are endless. How will you create your brand identity? We can help!
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-EfficiencyScyllaDB
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Freshworks creates AI-boosted business software that helps employees work more efficiently and effectively. Managing data across multiple RDBMS and NoSQL databases was already a challenge at their current scale. To prepare for 10X growth, they knew it was time to rethink their database strategy. Learn how they architected a solution that would simplify scaling while keeping costs under control.
In the realm of cybersecurity, offensive security practices act as a critical shield. By simulating real-world attacks in a controlled environment, these techniques expose vulnerabilities before malicious actors can exploit them. This proactive approach allows manufacturers to identify and fix weaknesses, significantly enhancing system security.
This presentation delves into the development of a system designed to mimic Galileo's Open Service signal using software-defined radio (SDR) technology. We'll begin with a foundational overview of both Global Navigation Satellite Systems (GNSS) and the intricacies of digital signal processing.
The presentation culminates in a live demonstration. We'll showcase the manipulation of Galileo's Open Service pilot signal, simulating an attack on various software and hardware systems. This practical demonstration serves to highlight the potential consequences of unaddressed vulnerabilities, emphasizing the importance of offensive security practices in safeguarding critical infrastructure.
âHow Axelera AI Uses Digital Compute-in-memory to Deliver Fast and Energy-eff...Edge AI and Vision Alliance
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For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/how-axelera-ai-uses-digital-compute-in-memory-to-deliver-fast-and-energy-efficient-computer-vision-a-presentation-from-axelera-ai/
Bram Verhoef, Head of Machine Learning at Axelera AI, presents the âHow Axelera AI Uses Digital Compute-in-memory to Deliver Fast and Energy-efficient Computer Visionâ tutorial at the May 2024 Embedded Vision Summit.
As artificial intelligence inference transitions from cloud environments to edge locations, computer vision applications achieve heightened responsiveness, reliability and privacy. This migration, however, introduces the challenge of operating within the stringent confines of resource constraints typical at the edge, including small form factors, low energy budgets and diminished memory and computational capacities. Axelera AI addresses these challenges through an innovative approach of performing digital computations within memory itself. This technique facilitates the realization of high-performance, energy-efficient and cost-effective computer vision capabilities at the thin and thick edge, extending the frontier of what is achievable with current technologies.
In this presentation, Verhoef unveils his companyâs pioneering chip technology and demonstrates its capacity to deliver exceptional frames-per-second performance across a range of standard computer vision networks typical of applications in security, surveillance and the industrial sector. This shows that advanced computer vision can be accessible and efficient, even at the very edge of our technological ecosystem.
âTemporal Event Neural Networks: A More Efficient Alternative to the Transfor...Edge AI and Vision Alliance
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For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/temporal-event-neural-networks-a-more-efficient-alternative-to-the-transformer-a-presentation-from-brainchip/
Chris Jones, Director of Product Management at BrainChip , presents the âTemporal Event Neural Networks: A More Efficient Alternative to the Transformerâ tutorial at the May 2024 Embedded Vision Summit.
The expansion of AI services necessitates enhanced computational capabilities on edge devices. Temporal Event Neural Networks (TENNs), developed by BrainChip, represent a novel and highly efficient state-space network. TENNs demonstrate exceptional proficiency in handling multi-dimensional streaming data, facilitating advancements in object detection, action recognition, speech enhancement and language model/sequence generation. Through the utilization of polynomial-based continuous convolutions, TENNs streamline models, expedite training processes and significantly diminish memory requirements, achieving notable reductions of up to 50x in parameters and 5,000x in energy consumption compared to prevailing methodologies like transformers.
Integration with BrainChipâs Akida neuromorphic hardware IP further enhances TENNsâ capabilities, enabling the realization of highly capable, portable and passively cooled edge devices. This presentation delves into the technical innovations underlying TENNs, presents real-world benchmarks, and elucidates how this cutting-edge approach is positioned to revolutionize edge AI across diverse applications.
5th LF Energy Power Grid Model Meet-up SlidesDanBrown980551
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5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power gridâs behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
What is an RPA CoE? Session 1 â CoE VisionDianaGray10
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In the first session, we will review the organization's vision and how this has an impact on the COE Structure.
Topics covered:
⢠The role of a steering committee
⢠How do the organizationâs priorities determine CoE Structure?
Speaker:
Chris Bolin, Senior Intelligent Automation Architect Anika Systems
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUpanagenda
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Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind fĂźr viele in der HCL-Community seit letztem Jahr ein heiĂes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und LizenzgebĂźhren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer mĂśglich. Das verstehen wir und wir mĂśchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lÜsen kÜnnen, die dazu fßhren kÜnnen, dass mehr Benutzer gezählt werden als nÜtig, und wie Sie ßberflßssige oder ungenutzte Konten identifizieren und entfernen kÜnnen, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnÜtigen Ausgaben fßhren kÜnnen, z. B. wenn ein Personendokument anstelle eines Mail-Ins fßr geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren LÜsungen. Und natßrlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Ăberblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
Diese Themen werden behandelt
- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und ĂźberflĂźssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
- Tipps fßr häufige Problembereiche, wie z. B. Team-Postfächer, Funktions-/Testbenutzer usw.
- Praxisbeispiele und Best Practices zum sofortigen Umsetzen
Discover top-tier mobile app development services, offering innovative solutions for iOS and Android. Enhance your business with custom, user-friendly mobile applications.
2. 2
CONTENTS
⢠WHAT IS AN OPERATING SYSTEM?
⢠CURRENT SCENARIO
⢠CHROME OS:INTERNET OS
⢠ORIGIN
⢠CHROME OS:IN DEPTH
⢠FURTHER DEVELOPMENT
⢠ADVANTAGES
⢠LIMITATIONS
⢠CONCLUSION
⢠REFERENCES
3. 3
⢠Program designed to
run other programs.
⢠Main Roles :
1. IO management
2. Processor management
3. File management
4. Memory management
WHAT IS AN OPERATING SYSTEM?
4. 4
CURRENT SCENARIO
Market Position in Terms of OS
⢠Until now 58 stable standard
OS released.
⢠Most of them have GUI and
Network connectivity.
⢠Windows Operating Systems
share most of the Market.
5. 5
Tim OâReilly defines:
âsimply use our facilities, and
the complexity will go awayâ
thing is Internet OS. [1]
⢠An OS designed by Google
to work exclusively with
web applications.
⢠Extension of Chrome
Browser and Android.
⢠It is an open source,
lightweight OS.
⢠First OS dedicated to
Internet.
CHROME OS:INTERNET OS
7. 7
ORIGIN
â˘Google developers began coding the operating system in 2009.
[2]
â˘To ascertain marketing requirements for an OS focused on
netbook Web transactions, Google did not do the usual
demographic research generally associated with a large software
development project.[2]
⢠Instead, engineers relied on more informal metrics, including
monitoring the usage patterns of some 200 Chrome OS
machines used by Google employees.[2]
8. 8
ORIGIN
â˘Inspired by the growing popularity and lower power
consumption of netbooks and the focus of these small
laptops on Internet access.
â˘Based on the Google Chrome Browser.
9. 9
CHROME OS:IN DEPTH
â˘GENERAL
I. SOFTWARE ARCHITECTURE
â˘SECURITY
I. SECURITY OVERVIEW
II. PROTECTING CACHED USER DATA
â˘FIRMWARE
I. FAST BOOT
II. VERIFIED BOOT
III. SECURE BOOT
â˘PLATFORM
I. FILE SYSTEM AUTO UPDATE
10. 10
SOFTWARE ARCHITECTURE
Chromium OS consists of three major components:
1.The Chromium-based browser and the window manager. [3]
2.System-level software and user-land services: the kernel, drivers, connection
manager, and so on. [3]
3.Firmware . [3]
11. 11
SOFTWARE ARCHITECTURE
FIRMWARE
Implements the following functionalities:-
System recovery: Re-install OS in adverse conditions. [3]
Verified boot: Each time the system boots, Chromium OS verifies different
components. [3]
Fast boot: Improved Boot performance. [3]
13. 13
SECURITY OVERVIEW
â˘Chromium OS has been designed from the ground up with
security in mind.
â˘Security is not a one-time effort, but rather an iterative
process that must be focused on for the life of the operating
system. [4]
â˘The goal is that, should either the operating system or the
user detect that the system has been compromised, an update
can be initiated, andâafter a rebootâthe system will have
been returned to a known good state. [4]
14. 14
SECURITY OVERVIEW
SECURE AUTOUPDATE
â˘Signed updates are downloaded over SSL. [4]
â˘Version numbers of updates can't go backwards. [4]
â˘The integrity of each update is verified on subsequent boot,
using Verified Boot. [4]
15. 15
SECURITY OVERVIEW
VERIFIED BOOT
â˘Verified boot provides a means of getting cryptographic
assurances that the Linux kernel, non-volatile system memory,
and the partition table are untampered with when the system
starts up. [4]
1.Firmware-based verification
2.Kernel-based verification
16. 16
SECURITY OVERVIEW
⢠Applications have permission
same as user.
⢠Can communicate with each
other easily.
⢠Web application have limited
permission.
⢠They are treated as untrusted
apps and run in Encapsulated
environment.
Traditional OS Chrome OS
17. 17
SECURITY OVERVIEW
BROWSER SANDBOX
â˘To help defend against an attacker who exploits a vulnerability
in the rendering engine, Chromium runs each rendering engine
in a sandbox. [5]
â˘This sandbox restricts the rendering engine's process from
issuing some system calls that could help the attacker reach the
goals. [5]
18. 18
SECURITY OVERVIEW
FUTURE WORK
Biometrics
â˘Google is keeping an eye on biometric authentication technologies
as they continue to become cheaper and more reliable, but at this
time they believe cost/reliability tradeoffs is not where it needs to be
for the target users. [4]
⢠They expect these devices to be covered in their users' fingerprints,
so a low-cost fingerprint scanner could actually increase the
likelihood of compromise. [4]
â˘They were able to break into one device that used facial recognition
authentication software just by holding it up to the user's photo. [4]
19. 19
PROTECTING CACHED USER DATA
â˘Chromium OS devices are intended to be both portable and
safely shared. As a result, privacy protection for user data
stored on the local disk is a requirement for a Chromium-based
OS. [6]
â˘Privacy protection for user data stored on a local disk is
accomplished via system-level encryption of users' home
directories. [6]
20. 20
PROTECTING CACHED USER DATA
â˘Chromium OS uses the eCryptfs stacked file system with per-
user vault directories and keysets to separate and protect each
userâs cached data. [6]
â˘Cache data is Encrypted using image file per user which is
locked and encrypted. [6]
24. 24
VERIFIED BOOT
â˘It starts with a read-only portion of firmware, which only
executes the next chunk of boot code after verification. [9]
â˘Ensures that all executed code comes from the Chromium OS
source tree, rather than from an attacker or corruption. [9]
â˘Focused on stopping the opportunistic attacker.
⢠It uses stored cryptographic hashes and may be compatible
with any trusted kernel. [9]
29. 29
VERIFIED BOOT
⢠Digital Signatures are provided for every firmware update
⢠If malware found System recovers itself to clean image
30. 30
SECURE BOOT
â˘Only Chrome OS BIOS will implement secure boot from first
power-on. [10]
â˘Portions of the firmware are read-only, forming the basis of
trust to validate the read/write portions of the firmware. [10]
â˘Once the firmware has been validated, boot process is
continued by reading the kernel from the disk. [10]
31. 31
SECURE BOOT
Selecting the kernel
â˘There are at least two kernel partitions, to support
autoupdate and accidental corruption. [10]
â˘Each kernel partition is paired with a rootfs partition; kernel A
should only boot rootfs A, kernel B should only boot rootfs B,
etc. [10]
â˘Using a Google-supplied library (in
src/platform/vboot_reference/firmware), the BIOS searches
the GPT to find the Chrome OS kernel with the highest Priority
value and then runs the following checks on it:
32. 32
SECURE BOOT
1.Check that (Successful Boot Flag == 1) or (Tries Remaining > 0).
2.If Successful Boot Flag == & Tries Remaining == 0, lower the Priority to 0 and
find the next kernel. This was a kernel that failed its last boot try.
3.Check the kernel signature header. If itâs invalid, and (Tries Remaining > 0),
set Tries Remaining = Priority = 0 and find the next kernel.
4.Begin copying the kernel blob into RAM.
5.Check the kernel blob signature as itâs copied. If itâs invalid, set Priority = 0
and find the next kernel.
6.If Tries Remaining > 0, decrement the Tries Remaining value in the partition
table.
7.Invoke the bootstub, which then launches the kernel.
If no valid kernel is found, we canât boot this device.
34. 34
FILE SYSTEM AUTO-UPDATE
â˘The autoupdate mechanism aims to provide seamless and
secure updates to the latest version of Chromium OS without
user interaction. [11]
â˘Updates usually come in the form of deltas which are
downloaded to a backup boot partition. Upon reboot, the
backup partition becomes the primary. [11]
â˘In case there is a problem with the update, the system can
revert to using the previous partition. [11]
38. 38
FURTHER DEVELOPMENT
⢠Open Source project named âChromiumâ
started .
⢠Open Source Communities are adding code
to Chromium
⢠Google Developers and Open Source
Developers are working on same tree for
betterment of OS
⢠Google is working with OEM to make
Chrome OS machines available in market at
the end of this year
⢠Expected that Chrome OS and Android will
converge together
39. 39
ADVANTAGES
â˘Free, Open Source : Lots of opportunity for developers
â˘One of the main advantages of Chrome OS over its
competitors, primarily, would be the system requirements.
â˘Low hardware cost.
â˘Record time of about 6-7 seconds to load the OS.
40. 40
LIMITATIONS
â˘The OS is designed to specifically target the Internet
generation so it won't be as successful in the short term.
â˘Users wont be able to use it unless they have access to high
speed internet.
⢠If there are problems with connection, Chrome OS becomes
virtually helpless.
⢠Most data of the user not stored on local drives but in the
cloud that is in the network.
41. 41
Is the world ready for Web OS?
â˘Back in 1995, Netscape cofounder Marc Andreessen predicted
that his fledgling Web browser would one day render Windows
obsolete. [12]
â˘Fifteen years later, Netscape is long gone, and the traditional
desktop OS remains firmly established on most personal
computers. [12]
â˘A Web OS offers enormous promise, potentially, it could take
the best of the Web combining it with the advantages of
desktop applications & sidestep many of the security &
compatibility issues currently plaguing desktop OSâs. [12]
42. 42
Is the world ready for Web OS?
â˘As Web sites take advantage of improved client side
technologies, browsers must cope with a growing range of
performance, reliability, and security issues. [12]
â˘With various netbooks running Googleâs Chrome OS, user
interaction will take place through a browser or Web-based
applications. [12]
â˘As developers take advantage of these emerging technologies
to craft Web-based experiences across a growing range of
devices, the traditional OS will likely continue to recede from
usersâ awareness and perhaps eventually disappear
altogether. [12]
43. 43
References
[1] Tim O'Reilly,The State of the Internet Operating System
.[Online].Available: http://radar.oreilly.com/2010/03/state-of-internet-
operating-system.html,March 29, 2010. [Accessed: Sept. 5, 2012].
[2] Google,Releasing the Chromium OS open source project.
[Online].Available: http://googleblog.blogspot.in/2009/11/releasing-
chromium-os-open-source.html, November 20, 2009. [Accessed: Sept. 2,
2012].
[3] Google,Software Architecture. [Online]. Available:
http://www.chromium.org/chromium-os/chromiumos-design-
docs/software-architecture. [Accessed: Sept. 11, 2012].
[4] Google, Security Overview. [Online]. Available:
http://www.chromium.org/chromium-os/chromiumos-design-
docs/security-overview. [Accessed: Sept. 12, 2012].
44. 44
References
[5] Barth, A. Jackson, C. Reis, C., and the Google
Chrome team, The Security Architecture of the Chromium
Browser.
[Online].Available:http://seclab.stanford.edu/websec/chromium/,May
2008.[Accessed: Sept.1, 2012]
[6] Google, Protecting Cached User Data . [Online]. Available:
http://www.chromium.org/chromium-os/chromiumos-design-
docs/protecting-cached-user-data. [Accessed: Sept.11 , 2012].
[7] Martin Bligh, Software Engineer, Chromium OS Fast
Boot [Video].Available: http://www.youtube.com/watch?v=mTFfl7AjNfI.
Nov 18, 2009.
[8] Will Drewry, Security Engineer, Chromium OS Security[Video].Available:
http://www.youtube.com/watch?v=A9WVmNfgjtQ.
Nov 18, 2009.
45. 45
References
[9]Google, Verified Boot.[Online].Available:
http://www.chromium.org/chromium-os/chromiumos-design-
docs/verified-boot. [Accessed: Sept. 12, 2012].
[10] Google, Disk Format. [Online]. Available:
http://www.chromium.org/chromium-os/chromiumos-design-docs/disk-
format. [Accessed: Sept. 13, 2012].
[11] Google, File System/Autoupdate. [Online]. Available:
http://www.chromium.org/chromium-os/chromiumos-design-
docs/filesystem-autoupdate. [Accessed: Sept. 13, 2012].
[12] Alex Wright, "Ready for a Web OS?â,communications of the acm, vol.
52, no. 12, pp.16-17, Dec 2009. [Online]. Available: ACM Digital
Library, Available: http://dl.acm.org/citation.cfm?id=1610260. [Accessed
Sept.2, 2012].
An operating system  ( OS ) is a collection of software that manages computer hardware  resources and provides common services  for computer programs . The operating system is a vital component of the system software  in a computer system. Application programs require an operating system to function.
Tim O'Reilly  (born June 6, 1954) is the founder of OâReilly media and a supporter of the free software  and open source  movements
System-level and user-land software D-Bus:  to interact with the rest of the system. Example,battery meter and network picker. Connection Manager:  Provides a common API for interacting with the network devices, provides a DNS proxy, and manages network services for 3G, wireless, and ethernet.  WPA Supplicant:  Used to connect to wireless networks. Autoupdate:  Our autoupdate daemon silently installs new system images. Power Management:  (ACPI on Intel) Handles power management events like closing the lid or pushing the power button. Standard Linux services:  NTP, syslog, and cron. the kernel  is the main component of most computer operating systems ; it is a bridge between applications  and the actual data processing  done at the hardware level. The kernel's responsibilities include managing the system's resources (the communication between hardware and software  components). [1]  .
 firmware  is the combination of persistent memory and program code and data stored in it
The window manager is responsible for handling the user's interaction with multiple client windows
Attacks against the autoupdate process are likely to be executed by a dedicated adversary who would subvert networking infrastructure to inject a fake autoupdate with malicious code inside it Secure Sockets Layer  ( SSL ), are cryptographic protocols  that provide communication security  over the Internet . [1]  TLS and SSL encrypt the segments of network  connections at the Application Layer  for the Transport Layer , using asymmetric cryptography  for key exchange, symmetric encryption  for confidentiality, and message authentication codes  for message integrity.
Firmware-based verification Read-only firmware checks writable firmware with a permanently stored key. If verification fails, the user can either bypass checking or boot to a safe recovery mode. Kernel-based verification (for details, see the Verified Boot  design document) This approach extends authenticity and integrity guarantees to files and metadata on the root file system.
Firmware-based verification Read-only firmware checks writable firmware with a permanently stored key. If verification fails, the user can either bypass checking or boot to a safe recovery mode. Kernel-based verification (for details, see the Verified Boot  design document) This approach extends authenticity and integrity guarantees to files and metadata on the root file system.
A web browser engine , (sometimes called layout engine  or rendering engine ), is a software component  that takes marked up  content (such as HTML , XML , image  files, etc.) and formatting information (such as CSS , XSL , etc.) and displays the formatted content on the screen
eCryptfs is a cryptographic stacked Linux filesystem. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decrypted with the proper key in the Linux kernel keyring. There is no need to keep track of any additional information aside from what is already in the encrypted file itself
Firmware-based verification Read-only firmware checks writable firmware with a permanently stored key. If verification fails, the user can either bypass checking or boot to a safe recovery mode. Kernel-based verification (for details, see the Verified Boot  design document) This approach extends authenticity and integrity guarantees to files and metadata on the root file system.
 GUID Partition Table  ( GPT ) is a standard for the layout of the partition table on a physical hard disk  the Basic Input/Output System (BIOS) , also known as the system BIOS A globally unique identifier  ( GUID )is a unique reference number used as an identifier in computer software.Â
 GUID Partition Table  ( GPT ) is a standard for the layout of the partition table on a physical hard disk  the Basic Input/Output System (BIOS) , also known as the system BIOS A globally unique identifier  ( GUID )is a unique reference number used as an identifier in computer software.Â
deltas (i.e. only the parts of the system that changed are downloaded)
ORIGINA EQUIP. MANUFACTURERS like redhat,debian,ubuntu
The lack of offline support is a huge disadvantage You will always need to use google account to use the netbook.
Best of the Webâthe rapid deployment and updating of new applications, device independence, and the ease and convenience with which large communities can collaborate and share Information desktop applicationsâoperating at machine speed,rich and interactive interfaces, and access to local hardwareâ
But even if the traditional OS sticks around in some form for years to come, it may not matter much to anyone except developers.