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Freenas® 11.0 User Guide
FreeNAS® 11.0 User Guide June 2017 Edition FreeNAS® IS © 2011-2017 iXsystems FreeNAS® AND THE FreeNAS® LOGO ARE REGISTERED TRADEMARKS OF iXsystems FreeBSD® IS A REGISTERED TRADEMARK OF THE FreeBSD Foundation WRITTEN BY USERS OF THE FreeNAS® network-attached STORAGE OPERATING system. VERSION 11.0 CopYRIGHT © 2011-2017 iXsystems (https://www.ixsystems.com/) CONTENTS WELCOME....................................................1 TYPOGRAPHIC Conventions...........................................2 1 INTRODUCTION 3 1.1 NeW FeaturES IN 11.0..........................................3 1.2 HarDWARE Recommendations.....................................4 1.2.1 RAM...............................................5 1.2.2 The OperATING System DeVICE.................................5 1.2.3 StorAGE Disks AND ContrOLLERS.................................6 1.2.4 Network INTERFACES.......................................7 1.3 Getting Started WITH ZFS........................................8 2 INSTALLING AND UpgrADING 9 2.1 Getting FreeNAS® ............................................9 2.2 PrEPARING THE Media.......................................... 10 2.2.1 On FreeBSD OR Linux...................................... 10 2.2.2 On WindoWS.......................................... 11 2.2.3 On OS X............................................. 11 2.3 Performing THE INSTALLATION....................................... 12 2.4 INSTALLATION TROUBLESHOOTING...................................... 18 2.5 UpgrADING................................................ 19 2.5.1 Caveats:............................................ -
The Kernel Report
The kernel report (ELC 2012 edition) Jonathan Corbet LWN.net [email protected] The Plan Look at a year's worth of kernel work ...with an eye toward the future Starting off 2011 2.6.37 released - January 4, 2011 11,446 changes, 1,276 developers VFS scalability work (inode_lock removal) Block I/O bandwidth controller PPTP support Basic pNFS support Wakeup sources What have we done since then? Since 2.6.37: Five kernel releases have been made 59,000 changes have been merged 3069 developers have contributed to the kernel 416 companies have supported kernel development February As you can see in these posts, Ralink is sending patches for the upstream rt2x00 driver for their new chipsets, and not just dumping a huge, stand-alone tarball driver on the community, as they have done in the past. This shows a huge willingness to learn how to deal with the kernel community, and they should be strongly encouraged and praised for this major change in attitude. – Greg Kroah-Hartman, February 9 Employer contributions 2.6.38-3.2 Volunteers 13.9% Wolfson Micro 1.7% Red Hat 10.9% Samsung 1.6% Intel 7.3% Google 1.6% unknown 6.9% Oracle 1.5% Novell 4.0% Microsoft 1.4% IBM 3.6% AMD 1.3% TI 3.4% Freescale 1.3% Broadcom 3.1% Fujitsu 1.1% consultants 2.2% Atheros 1.1% Nokia 1.8% Wind River 1.0% Also in February Red Hat stops releasing individual kernel patches March 2.6.38 released – March 14, 2011 (9,577 changes from 1198 developers) Per-session group scheduling dcache scalability patch set Transmit packet steering Transparent huge pages Hierarchical block I/O bandwidth controller Somebody needs to get a grip in the ARM community. -
Deploying Ios and Tvos Devices Using Apple Configurator 2 and Jamf Pro
Deploying iOS and tvOS Devices Using Apple Configurator 2 and Jamf Pro Technical Paper Jamf Pro 10.9.0 or Later 7 October 2020 © copyright 2002-2020 Jamf. All rights reserved. Jamf has made all efforts to ensure that this guide is accurate. Jamf 100 Washington Ave S Suite 1100 Minneapolis, MN 55401-2155 (612) 605-6625 Jamf, the Jamf Logo, JAMF SOFTWARE®, and the JAMF SOFTWARE Logo® are registered or common law trademarks of JAMF SOFTWARE, LLC in the U.S. and other countries. Apple, Apple Configurator 2, the Apple logo, Apple TV, iTunes, Mac, macOS, OS X, and tvOS are trademarks of Apple Inc., registered in the United States and other countries. IOS is a trademark or registered trademark of Cisco in the U.S. and other countries. All other product and service names mentioned herein are either registered trademarks or trademarks of their respective companies. Contents Contents 4 Introduction 4 What's in This Guide 4 Additional Resources 5 Choosing a Deployment Method 6 Supervision Identities 6 Use a Supervision Identity from Apple Configurator 2 7 Create and Use a Supervision Identity from Jamf Pro 8 Automated Enrollment 8 Requirements 8 Deploying Devices Using Automated Enrollment 11 Manual Enrollment with an Enrollment URL 11 Requirements 11 Deploy Devices Using Manual Enrollment with an Enrollment URL 13 Further Considerations 14 Manual Enrollment with an Enrollment Profile 14 Requirements 14 Create an Enrollment Profile 14 Create and Upload the Supervision Identity 14 Create the "Prepare" Blueprint 15 Create the "Enroll" Blueprint 15 Deploy Devices Using Manual Enrollment with an Enrollment Profile 3 Introduction What's in This Guide This guide provides step-by-step instructions for deploying iOS and tvOS devices using Apple Configurator 2 and Jamf Pro. -
Rootless Containers with Podman and Fuse-Overlayfs
CernVM Workshop 2019 (4th June 2019) Rootless containers with Podman and fuse-overlayfs Giuseppe Scrivano @gscrivano Introduction 2 Rootless Containers • “Rootless containers refers to the ability for an unprivileged user (i.e. non-root user) to create, run and otherwise manage containers.” (https://rootlesscontaine.rs/ ) • Not just about running the container payload as an unprivileged user • Container runtime runs also as an unprivileged user 3 Don’t confuse with... • sudo podman run --user foo – Executes the process in the container as non-root – Podman and the OCI runtime still running as root • USER instruction in Dockerfile – same as above – Notably you can’t RUN dnf install ... 4 Don’t confuse with... • podman run --uidmap – Execute containers as a non-root user, using user namespaces – Most similar to rootless containers, but still requires podman and runc to run as root 5 Motivation of Rootless Containers • To mitigate potential vulnerability of container runtimes • To allow users of shared machines (e.g. HPC) to run containers without the risk of breaking other users environments • To isolate nested containers 6 Caveat: Not a panacea • Although rootless containers could mitigate these vulnerabilities, it is not a panacea , especially it is powerless against kernel (and hardware) vulnerabilities – CVE 2013-1858, CVE-2015-1328, CVE-2018-18955 • Castle approach : it should be used in conjunction with other security layers such as seccomp and SELinux 7 Podman 8 Rootless Podman Podman is a daemon-less alternative to Docker • $ alias -
AMNESIA 33: How TCP/IP Stacks Breed Critical Vulnerabilities in Iot
AMNESIA:33 | RESEARCH REPORT How TCP/IP Stacks Breed Critical Vulnerabilities in IoT, OT and IT Devices Published by Forescout Research Labs Written by Daniel dos Santos, Stanislav Dashevskyi, Jos Wetzels and Amine Amri RESEARCH REPORT | AMNESIA:33 Contents 1. Executive summary 4 2. About Project Memoria 5 3. AMNESIA:33 – a security analysis of open source TCP/IP stacks 7 3.1. Why focus on open source TCP/IP stacks? 7 3.2. Which open source stacks, exactly? 7 3.3. 33 new findings 9 4. A comparison with similar studies 14 4.1. Which components are typically flawed? 16 4.2. What are the most common vulnerability types? 17 4.3. Common anti-patterns 22 4.4. What about exploitability? 29 4.5. What is the actual danger? 32 5. Estimating the reach of AMNESIA:33 34 5.1. Where you can see AMNESIA:33 – the modern supply chain 34 5.2. The challenge – identifying and patching affected devices 36 5.3. Facing the challenge – estimating numbers 37 5.3.1. How many vendors 39 5.3.2. What device types 39 5.3.3. How many device units 40 6. An attack scenario 41 6.1. Other possible attack scenarios 44 7. Effective IoT risk mitigation 45 8. Conclusion 46 FORESCOUT RESEARCH LABS RESEARCH REPORT | AMNESIA:33 A note on vulnerability disclosure We would like to thank the CERT Coordination Center, the ICS-CERT, the German Federal Office for Information Security (BSI) and the JPCERT Coordination Center for their help in coordinating the disclosure of the AMNESIA:33 vulnerabilities. -
Initial Setup of Your IOS Device
1. When you first turn on your iOS device, you'll see a screen displaying Hello in different languages. Slide from left to right anywhere on this screen. 2. Select the language you want your iOS device to use, and then the region in which you'll be using your iOS device. This will affect things such as date, time, and contact formatting. 3. Your iOS device requires an Internet connection to set up. Tap the name of your desired Wi-Fi network to begin device activation. § If you're activating an iPhone or iPad (Wi-Fi + Cellular) with active cellular service, you can instead choose cellular activation. 4. Choose whether to enable Location Services. 5. Set up your iPhone as a new device, from an iCloud backup, or from an iTunes backup. § If restoring from backup, you can learn how to restore your content. 6. Sign in with your Apple ID, which you've created previously, or create a free Apple ID. § Alternatively, you can tap Skip This Step to sign in or create an Apple ID later. § If necessary, learn how to create a free Apple ID: 1. Select your birthday, then tap Next: 2. Enter your first and last name, then tap Next: 3. You can then use either your current email address, or choose to get a free iCloud email address. Select the option you'd like, then tap Next. 4. Enter your current email address, or what you'd like for your iCloud email, then tap Next. 5. Enter what you'd like for your password and tap Next. -
View Managing Devices and Corporate Data On
Overview Managing Devices & Corporate Data on iOS Overview Overview Contents Businesses everywhere are empowering their employees with iPhone and iPad. Overview Management Basics The key to a successful mobile strategy is balancing IT control with user Separating Work and enablement. By personalizing iOS devices with their own apps and content, Personal Data users take greater ownership and responsibility, leading to higher levels of Flexible Management Options engagement and increased productivity. This is enabled by Apple’s management Summary framework, which provides smart ways to manage corporate data and apps discretely, seamlessly separating work data from personal data. Additionally, users understand how their devices are being managed and trust that their privacy is protected. This document offers guidance on how essential IT control can be achieved while at the same time keeping users enabled with the best tools for their job. It complements the iOS Deployment Reference, a comprehensive online technical reference for deploying and managing iOS devices in your enterprise. To refer to the iOS Deployment Reference, visit help.apple.com/deployment/ios. Managing Devices and Corporate Data on iOS July 2018 2 Management Basics Management Basics With iOS, you can streamline iPhone and iPad deployments using a range of built-in techniques that allow you to simplify account setup, configure policies, distribute apps, and apply device restrictions remotely. Our simple framework With Apple’s unified management framework in iOS, macOS, tvOS, IT can configure and update settings, deploy applications, monitor compliance, query devices, and remotely wipe or lock devices. The framework supports both corporate-owned and user-owned as well as personally-owned devices. -
Performance Study of Real-Time Operating Systems for Internet Of
IET Software Research Article ISSN 1751-8806 Performance study of real-time operating Received on 11th April 2017 Revised 13th December 2017 systems for internet of things devices Accepted on 13th January 2018 E-First on 16th February 2018 doi: 10.1049/iet-sen.2017.0048 www.ietdl.org Rafael Raymundo Belleza1 , Edison Pignaton de Freitas1 1Institute of Informatics, Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, CP 15064, Porto Alegre CEP: 91501-970, Brazil E-mail: [email protected] Abstract: The development of constrained devices for the internet of things (IoT) presents lots of challenges to software developers who build applications on top of these devices. Many applications in this domain have severe non-functional requirements related to timing properties, which are important concerns that have to be handled. By using real-time operating systems (RTOSs), developers have greater productivity, as they provide native support for real-time properties handling. Some of the key points in the software development for IoT in these constrained devices, like task synchronisation and network communications, are already solved by this provided real-time support. However, different RTOSs offer different degrees of support to the different demanded real-time properties. Observing this aspect, this study presents a set of benchmark tests on the selected open source and proprietary RTOSs focused on the IoT. The benchmark results show that there is no clear winner, as each RTOS performs well at least on some criteria, but general conclusions can be drawn on the suitability of each of them according to their performance evaluation in the obtained results. -
Chapter 1. Origins of Mac OS X
1 Chapter 1. Origins of Mac OS X "Most ideas come from previous ideas." Alan Curtis Kay The Mac OS X operating system represents a rather successful coming together of paradigms, ideologies, and technologies that have often resisted each other in the past. A good example is the cordial relationship that exists between the command-line and graphical interfaces in Mac OS X. The system is a result of the trials and tribulations of Apple and NeXT, as well as their user and developer communities. Mac OS X exemplifies how a capable system can result from the direct or indirect efforts of corporations, academic and research communities, the Open Source and Free Software movements, and, of course, individuals. Apple has been around since 1976, and many accounts of its history have been told. If the story of Apple as a company is fascinating, so is the technical history of Apple's operating systems. In this chapter,[1] we will trace the history of Mac OS X, discussing several technologies whose confluence eventually led to the modern-day Apple operating system. [1] This book's accompanying web site (www.osxbook.com) provides a more detailed technical history of all of Apple's operating systems. 1 2 2 1 1.1. Apple's Quest for the[2] Operating System [2] Whereas the word "the" is used here to designate prominence and desirability, it is an interesting coincidence that "THE" was the name of a multiprogramming system described by Edsger W. Dijkstra in a 1968 paper. It was March 1988. The Macintosh had been around for four years. -
Java Cheat Sheet
Java Cheat Sheet Mosh Hamedani Code with Mosh (codewithmosh.com) 1st Edition About this Cheat Sheet This cheat sheet includes the materials I’ve covered in my Java tutorial for Beginners on my YouTube channel: https://www.youtube.com/user/programmingwithmosh Both the YouTube tutorial and this cheat cover the core language constructs and they are not complete by any means. If you want to learn everything Java has to offer and become a Java expert, check out my Ultimate Java Mastery Series. https://codewithmosh.com/courses/the-ultimate-java-mastery-series About the Author Hi! My name is Mosh Hamedani. I’m a software engineer with two decades of experience and I’ve taught over three million people how to code or how to become a professional software engineer. It’s my mission to make software engineering simple and accessible to everyone. https://codewithmosh.com https://youtube.com/user/programmingwithmosh https://twitter.com/moshhamedani https://facebook.com/programmingwithmosh/ Basics ...................................................................6 Java Development Kit ..............................................................................6 Java Editions ............................................................................................6 How Java Code Gets Executed ................................................................6 Architecture of Java Applications ..........................................................6 5 Interesting Facts about Java ................................................................7 -
A Tutorial on Performance Evaluation and Validation Methodology for Low-Power and Lossy Networks
A Tutorial on Performance Evaluation and Validation Methodology for Low-Power and Lossy Networks Kosmas Kritsis, Georgios Papadopoulos, Antoine Gallais, Periklis Chatzimisios, Fabrice Theoleyre To cite this version: Kosmas Kritsis, Georgios Papadopoulos, Antoine Gallais, Periklis Chatzimisios, Fabrice Theoleyre. A Tutorial on Performance Evaluation and Validation Methodology for Low-Power and Lossy Networks. Communications Surveys and Tutorials, IEEE Communications Society, Institute of Electrical and Electronics Engineers, 2018, 20 (3), pp.1799 - 1825. 10.1109/COMST.2018.2820810. hal-01886690 HAL Id: hal-01886690 https://hal.archives-ouvertes.fr/hal-01886690 Submitted on 23 Apr 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. 1 A Tutorial on Performance Evaluation and Validation Methodology for Low-Power and Lossy Networks Kosmas Kritsis, Georgios Z. Papadopoulos, Member, IEEE, Antoine Gallais, Periklis Chatzimisios, Senior Member, IEEE, and Fabrice Theoleyre,´ Senior Member, IEEE, Abstract—Envisioned communication densities in Internet of may be used for counting the number of vehicles, such to Things (IoT) applications are increasing continuously. Because control optimally the street traffic lights and to reduce the these wireless devices are often battery powered, we need waiting time [3]. specific energy efficient (low-power) solutions. -
Carbon Copy Cloner Documentation: English
Carbon Copy Cloner Documentation: English Getting started with CCC System Requirements, Installing, Updating, and Uninstalling CCC CCC License, Registration, and Trial FAQs Trouble Applying Your Registration Information? Establishing an initial backup Preparing your backup disk for a backup of Mac OS X Restoring data from your backup What's new in CCC Features of CCC specific to Lion and greater Release History Carbon Copy Cloner's Transition to a Commercial Product: Frequently Asked Questions Credits Example backup scenarios I want to clone my entire hard drive to a new hard drive or a new machine I want to backup my important data to another Macintosh on my network I want to backup multiple machines or hard drives to the same hard drive I want my backup task to run automatically on a scheduled basis Backing up to/from network volumes and other non-HFS volumes I want to back up my whole Mac to a Time Capsule or other network volume I want to defragment my hard drive Backup and archiving settings Excluding files and folders from a backup task Protecting data that is already on your destination volume Managing previous versions of your files Automated maintenance of CCC archives Advanced Settings Some files and folders are automatically excluded from a backup task The Block-Level Copy Scheduling Backup Tasks Scheduling a task and basic settings Performing actions Before and After the backup task Deferring and skipping scheduled tasks Frequently asked questions about scheduled tasks Email and Growl notifications Backing Up to Disk Images