بعد أن قام العلماء بتطوير أول أجهزة الحاسوب في الأربعينات أدرك المجتمع والعالم بأسره أن
هذه الأجهزة الجديدة سوف تقدم الكثير والكثير من الخدمات للبشرية كلها خاصة في مجال المعلومات
وتخزينها ومعالجتها واستعادتها، وبعد هذا التاريخ بعقد من الزمان بدأ الأطباء والمتخصصون بدورهم
في محاولة الاستفادة من هذه التقنيات بشكل حقيقي من خلال تطوير فكرة إدارة المعلومات ودور
الحاسب الآلي في الطب والرعاية الصحية، وكان من أهم ما تم تطويره بشكل مبكر فكرة السجلات
الطبية الإلكترونية التي تمثل عصب المعلومات المرتبطة بتقديم الرعاية الصحية للمريض محور كل
أنشطة الطب والرعاية الصحية، وقد تتابعت المراحل والتجارب التي مرت بها عملية التطوير لتلك
السجلات الطبية وتكاملها مع مصادر المعلومات المختلفة من خلال نظم شبكات المعلومات التي أدت
بالتبعية إلى فكرة اللامركزية واتصال المعلومات بين أكثر من مستشفى ومؤسسة طبية بل إلى أبعد من
ذلك من خلال شبكة الإنترنت التي دفعت إمكانياتها ملايين المستخدمين من المرضى إلى الاعتماد
عليها كمصدر للبحث عن المعلومات الطبية
This document defines cloud computing and compares it to grid computing. It outlines cloud computing architectures including service models (SaaS, PaaS, IaaS) and deployment models (public, private, hybrid, community). The benefits of cloud computing are almost zero upfront costs, usage-based pricing, and automatic scaling. Google Apps is used as an example of cloud computing services including email, chat and the Google App Engine platform. Key differences between grid and cloud computing are their business models, architectures, and applications. Grid computing focuses on scientific problems using HPC resources, while cloud computing runs varying applications with elastic resource demands.
أمن المعلومات
الإرهاب الإلكتروني
الحرب السيبرانية
الجريمة الإلكترونية
المعايير والإجراءات المتخذة لمنع وصول المعلومات إلى أيدي أشخاص غير مخولين عبر الإتصالات ولضمان صحتها .
بعد أن قام العلماء بتطوير أول أجهزة الحاسوب في الأربعينات أدرك المجتمع والعالم بأسره أن
هذه الأجهزة الجديدة سوف تقدم الكثير والكثير من الخدمات للبشرية كلها خاصة في مجال المعلومات
وتخزينها ومعالجتها واستعادتها، وبعد هذا التاريخ بعقد من الزمان بدأ الأطباء والمتخصصون بدورهم
في محاولة الاستفادة من هذه التقنيات بشكل حقيقي من خلال تطوير فكرة إدارة المعلومات ودور
الحاسب الآلي في الطب والرعاية الصحية، وكان من أهم ما تم تطويره بشكل مبكر فكرة السجلات
الطبية الإلكترونية التي تمثل عصب المعلومات المرتبطة بتقديم الرعاية الصحية للمريض محور كل
أنشطة الطب والرعاية الصحية، وقد تتابعت المراحل والتجارب التي مرت بها عملية التطوير لتلك
السجلات الطبية وتكاملها مع مصادر المعلومات المختلفة من خلال نظم شبكات المعلومات التي أدت
بالتبعية إلى فكرة اللامركزية واتصال المعلومات بين أكثر من مستشفى ومؤسسة طبية بل إلى أبعد من
ذلك من خلال شبكة الإنترنت التي دفعت إمكانياتها ملايين المستخدمين من المرضى إلى الاعتماد
عليها كمصدر للبحث عن المعلومات الطبية
This document defines cloud computing and compares it to grid computing. It outlines cloud computing architectures including service models (SaaS, PaaS, IaaS) and deployment models (public, private, hybrid, community). The benefits of cloud computing are almost zero upfront costs, usage-based pricing, and automatic scaling. Google Apps is used as an example of cloud computing services including email, chat and the Google App Engine platform. Key differences between grid and cloud computing are their business models, architectures, and applications. Grid computing focuses on scientific problems using HPC resources, while cloud computing runs varying applications with elastic resource demands.
أمن المعلومات
الإرهاب الإلكتروني
الحرب السيبرانية
الجريمة الإلكترونية
المعايير والإجراءات المتخذة لمنع وصول المعلومات إلى أيدي أشخاص غير مخولين عبر الإتصالات ولضمان صحتها .
The document discusses cloud computing and data centers. It defines cloud computing as a style of computing where scalable IT capabilities are provided as an internet-based service. It describes the different cloud service models including SaaS, PaaS, and IaaS. It also discusses cloud deployment models like public, private, community and hybrid clouds. The document then explains how growing adoption of cloud computing requires large data centers to host servers. It provides details on data center network architectures, use of Ethernet, and the role data centers play in processing user requests and transactions.
This document provides an overview of cloud computing. It defines cloud computing as network-based computing that takes place over the internet using integrated hardware, software, and internet infrastructure. Cloud computing is characterized by services being remotely hosted and available from anywhere, and having a utility-based payment model. The document outlines the three main cloud service models: Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). It also discusses some of the opportunities of cloud computing, such as flexibility and scalability, as well as advantages like lower costs, improved performance, and unlimited storage. Finally, it briefly introduces the different types of cloud models including private, hybrid, and public
• الدورة الاولى عربيا (اون لاين) من حيث تغطية الاطار النظرى والاطار العملى التطبيقى.
• شرح منهجية ادارة المعرفة باسلوب ادارى ومهنى واكاديمى.
• الدورة تساعد المشاركين فيها لعملية كيفية الاعداد والتجهيز لاستراتيجية ادارة المعرفة بالشركات والمؤسسات.
• التعرف على مصفوفة إدارة المعرفة وتطبيق استراتيجيات وأدوات إدارة المعرفة .
• ادارك واستيعاب المشاركين لتجهيز الخطوات الاساسية لتكوين فريق العمل المسؤل عن ادارة المعرفة بالشركة.
• كيفية الاعداد للمحتوى الجيد بناء على المواصفات العالمية.
• التعرف على مواصفة 30401 لنظام ادارة المعرفة.
• عرض التجارب والشركات العربية والدولية التى طبقت ادارة المعرفة.
• استعراض 15 خطوة عملية نهائية لتطبيق منهجية ادارة المعرفة داخل شركتك.
• اختبارات تقييم لقياس النضج المعرفى قبل واثناء وبعد انتهاء الدورة.
أنواع الهجمات الإلكترونية
وسائل الحماية
أنظمة التحكم في الوصول Access Control
المصادقة Authentication
المقاييس الحيوية وأنواعها
المصادقه بطريقتين مختلفتين
This document provides guidance on designing an Encrypted Traffic Analytics (ETA) solution using Cisco products for crypto audit and malware detection. It discusses Flexible NetFlow and ETA, relevant Cisco components, customer use cases, general design considerations for wired and wireless networks, and specific design recommendations for traditional Cisco networks and Cisco SD-Access fabrics. The key components are Cisco Stealthwatch Enterprise for traffic analysis, Cisco switches and routers to enable Flexible NetFlow collection of encrypted traffic metadata, and Cisco DNA Center to manage the SD-Access fabric.
الرضا الوظيفي : شعور الفرد بالسعادة والارتياح أثناء أدائه لعمله ويتحقق ذلك بالتوافق بين ما يتوقعه الفرد من عمله ومقدار ما يحصل عليه فعلاً في هذا العمل وأن الرضا الوظيفي يتمثل في المكونات التي تدفع الفرد للعمل والإنتاج
يعد الأمن السيبراني في الوقت الحالي أهم عناصر الأمن في الدول المتحضرة و خاصةً مع التحول الكامل نحو السيبرانية في كافة جوانب الحياة. و تقوم فكرة الأمن السيبراني على تأمين البنية التحتية المعلوماتية للدول و التي تتمثل في المنشآت الهامة و نظم المعلومات الهامة و منها نظم إدارة الحكومات الإلكترونية و التي تُدار بها مؤسسات الدول الحيوية، و كذلك النظم العسكرية و الشرطية و القضائية و الإقتصادية و الصناعية و التجارية و غيرها. و يُعد ما يهددها هو تهديد للأمن القومي للدول. لذا قامت العديد من الدول بإعداد الهيئات التي تختص بحماية الأمن السيبراني، و أصبح هذا المفهوم هو جُلّ إهتمام حكومتنا الرشيدة . فقد سخرت له كافة الإمكانيات و أصبح من معايير قياس تحضّر و مدى إمكانيات الدول فيما يتعلق بالجاهزية السيبرانية لمواجهة التهديدات، و الذي يقدم الإتحاد الدولي للإتصالات سنوياً مؤشراً يتم فيه ترتيب الدول بحسب الجاهزية.
للموسسات التعليميه دور مهم في تعزيز مفهوم الامن السيبراني والتي يساهم معرفتها في معرفة الطرق التربوية لتجنب المخاطر التي تتعرض لها الانظمة المعلوماتية، والاجهزة المتصلة بالشبكة العالمية للمعلومات، وتشعب طبيعة هذه الاجهزة، من هواتف خليوية، واجهزة حوسبة شخصية.
تعتمد المجتمعات الحديثة بشكل متنامي على تكنولوجيات الاتصالات والمعلومات المتصلة بالشبكة العالمية. غير أن هذا الاعتماد المطرد ترافقه مجموعة من المخاطر الناشئة والمحتملة التي تهدد وبشكل أساسي الشبكة وأمن المعلومات والمجتمع المعلوماتي وأعضائه. إن سوء الاستغلال المتنامي للشبكات الالكترونية لأهداف إجرامية يؤثر سلباً على سلامة البنى التحتية للمعلومات الوطنية الحساسة لا سيما على المعلومات الشخصية وأمن الأطفال.
لقد بات الأمن السيبراني يشكل جزءاً أساسياً من أي سياسة أمنية وطنية، حيث بات معلوماً أن صناع القرار في الولايات المتحدة الأمريكية، الاتحاد الأوروبي، روسيا، الصين، الهند وغيرها من الدول، أصبحوا يصنفون مسائل الدفاع السيبراني/الأمن السيبراني كأولوية في سياساتهم الدفاعية الوطنية.
بالإضافة إلى ما تقدم، فقد أعلنت أكثر من 130 دولة حول العالم عن تخصيص أقساماً وسيناريوهات خاصة بالحرب السيبرانية ضمن فرق الأمن الوطني. تضاف جميع هذه الجهود إلى الجهود الأمنية التقليدية لمحاربة الجرائم الالكترونية، الاحتيال الالكتروني والأوجه الأخرى للمخاطر السيبرانية.
وبكلمات أخرى، فان الأمن السيبراني يشكل مجموع الأطر القانونية والتنظيمية، الهياكل التنظيمية، إجراءات سير العمل بالإضافة إلى الوسائل التقنية والتكنولوجية والتي تمثل الجهود المشتركة للقطاعين الخاص والعام، المحلية والدولية والتي تهدف إلى حماية الفضاء السيبراني الوطني، مع التركيز على ضمان توافر أنظمة المعلومات وتمتين الخصوصية وحماية سرية المعلومات الشخصية واتخاذ جميع الإجراءات الضرورية لحماية المواطنين والمستهلكين من مخاطر الفضاء السيبراني.
أ.م.عبدالجبار حسين الظفري
This presentation provides an overview of cloud computing. It introduces the group members and defines cloud computing as delivering computing and application services over a network. The key characteristics of cloud computing are on-demand access, network access, shared resources, and scalability. The presentation describes the cloud computing architecture and models including deployment models of public, private, community and hybrid clouds. It also explains the service models of Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).
Virtualization allows multiple operating systems to run on a single machine by creating virtual versions of hardware resources. There are three main types of virtualization: partial, full, and para. A hypervisor manages virtual machines and allocates resources to guest operating systems. Cloud computing delivers computing as an on-demand utility over the internet by sharing resources. It provides software, platforms and infrastructure as services across public, private, hybrid and community clouds. Big data refers to massive volumes of structured and unstructured data that is difficult to process using traditional techniques and requires specialized infrastructure.
This document provides an overview of cloud computing. It begins by describing the disconnect between what businesses want from IT (e.g. fast experimentation) versus what IT wants (e.g. stability). Cloud computing is presented as filling this gap. The document defines cloud computing, discusses its characteristics such as pay-per-use and no long-term commitments. It also outlines the different types of cloud services (PaaS, IaaS, AaaS), common customers of cloud computing, and its advantages like economies of scale.
تشكل القيادة محورًا مهمًا ترتكز عليه مختلف النشاطات في المنظمات العامة والخاصة على حدٍّ سواء، خاصةً في ظل تنامي المنظمات وكبر حجمها وتشعب أعمالها وتعقّدها وتنوع العلاقات الداخلية وتشابكها وتأثرها بالبيئة الخارجية من مؤثرات سياسية واقتصادية واجتماعية، فهي أمور تستدعي مواصلة البحث والاستمرار في إحداث التغيير والتطوير، وهذه مهمة لا تتحقق إلا في ظل قيادة واعية.
عملية القيادة هي ذلك العنصر الإنساني الذي يقود العاملين ويحفزهم إلى تحقيق أهداف التنظيم، والقيادة ليست ميزة شخصية في شخص القائد، ولكنها محصلة لمركب معقد من الفرد، والمجموعة، وظروف التنظيم. والقائد الناجح هو الذي يستطيع كسب تعاون وتفاهم أفراد مجموعته وإقناعهم بأن في تحقيق أهداف التنظيم نجاحًا شخصيًا وتحقيقًا لأهدافهم الشخصية.
ونجد أن عناية إدارة المشاريع تنحصر عمومًا في تحقيق أهدافه عن طريق الجهود الجماعية المشتركة لمجموعة من الأفراد، فلابد من وجود قيادة للمجموعات. ولا شك أن المدير هو الذي يتولى هذه القيادة في المشروع، وهذا يتطلب أن يقوم بتنسيق مستمر لجهود ونشاط أفراد المجموعة التي يتولي قيادتها حتي يستطيع أن يحقق أهدافها بسهولة. وطالما استخدمت في الماضي طريقة الضغط وفرض النفس بقوة من جهة القيادة كطريقة لتحقيق التنسيق بين جهود الأفراد، إلا أن هذه الطريقة قد أصبحت الآن أقل الطرق كفايةً في إنجاز الأعمال. فالقيادة الحقيقية تتضمن رغبةً من المرؤوسين في التبعية وطاعة القادة وتنفيذ أوامرهم.
Virtualization allows for the creation of virtual versions of hardware platforms, operating systems, storage and network resources through software. It works by imitating hardware resources through a hypervisor software layer that creates virtual machines with virtual hardware. This allows multiple guest operating systems to run in isolation on a single physical machine. Virtualization provides benefits like reduced costs, increased hardware utilization, easier management and testing across different operating systems. Popular virtualization platforms include VMWare, Hyper-V, KVM, Xen and VirtualBox.
Need for Virtualization – Pros and cons of Virtualization – Types of Virtualization –System VM, Process VM, Virtual Machine monitor – Virtual machine properties - Interpretation and binary translation, HLL VM - supervisors – Xen, KVM, VMware, Virtual Box, Hyper-V.
Cloud computing allows users to access shared computing resources over the internet. It utilizes virtualization which involves partitioning physical resources and allocating them to virtual machines. This improves resource utilization, enables multi-tenancy, and makes resources scalable and flexible. Virtualization allows multiple operating systems and applications to run concurrently on a single physical server through virtual machines. It provides benefits like hardware independence, migration of virtual machines, and better fault isolation. Security challenges in virtualized cloud environments include issues around scaling, diversity, identity management and sensitive data lifetime.
The document discusses cloud computing and data centers. It defines cloud computing as a style of computing where scalable IT capabilities are provided as an internet-based service. It describes the different cloud service models including SaaS, PaaS, and IaaS. It also discusses cloud deployment models like public, private, community and hybrid clouds. The document then explains how growing adoption of cloud computing requires large data centers to host servers. It provides details on data center network architectures, use of Ethernet, and the role data centers play in processing user requests and transactions.
This document provides an overview of cloud computing. It defines cloud computing as network-based computing that takes place over the internet using integrated hardware, software, and internet infrastructure. Cloud computing is characterized by services being remotely hosted and available from anywhere, and having a utility-based payment model. The document outlines the three main cloud service models: Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). It also discusses some of the opportunities of cloud computing, such as flexibility and scalability, as well as advantages like lower costs, improved performance, and unlimited storage. Finally, it briefly introduces the different types of cloud models including private, hybrid, and public
• الدورة الاولى عربيا (اون لاين) من حيث تغطية الاطار النظرى والاطار العملى التطبيقى.
• شرح منهجية ادارة المعرفة باسلوب ادارى ومهنى واكاديمى.
• الدورة تساعد المشاركين فيها لعملية كيفية الاعداد والتجهيز لاستراتيجية ادارة المعرفة بالشركات والمؤسسات.
• التعرف على مصفوفة إدارة المعرفة وتطبيق استراتيجيات وأدوات إدارة المعرفة .
• ادارك واستيعاب المشاركين لتجهيز الخطوات الاساسية لتكوين فريق العمل المسؤل عن ادارة المعرفة بالشركة.
• كيفية الاعداد للمحتوى الجيد بناء على المواصفات العالمية.
• التعرف على مواصفة 30401 لنظام ادارة المعرفة.
• عرض التجارب والشركات العربية والدولية التى طبقت ادارة المعرفة.
• استعراض 15 خطوة عملية نهائية لتطبيق منهجية ادارة المعرفة داخل شركتك.
• اختبارات تقييم لقياس النضج المعرفى قبل واثناء وبعد انتهاء الدورة.
أنواع الهجمات الإلكترونية
وسائل الحماية
أنظمة التحكم في الوصول Access Control
المصادقة Authentication
المقاييس الحيوية وأنواعها
المصادقه بطريقتين مختلفتين
This document provides guidance on designing an Encrypted Traffic Analytics (ETA) solution using Cisco products for crypto audit and malware detection. It discusses Flexible NetFlow and ETA, relevant Cisco components, customer use cases, general design considerations for wired and wireless networks, and specific design recommendations for traditional Cisco networks and Cisco SD-Access fabrics. The key components are Cisco Stealthwatch Enterprise for traffic analysis, Cisco switches and routers to enable Flexible NetFlow collection of encrypted traffic metadata, and Cisco DNA Center to manage the SD-Access fabric.
الرضا الوظيفي : شعور الفرد بالسعادة والارتياح أثناء أدائه لعمله ويتحقق ذلك بالتوافق بين ما يتوقعه الفرد من عمله ومقدار ما يحصل عليه فعلاً في هذا العمل وأن الرضا الوظيفي يتمثل في المكونات التي تدفع الفرد للعمل والإنتاج
يعد الأمن السيبراني في الوقت الحالي أهم عناصر الأمن في الدول المتحضرة و خاصةً مع التحول الكامل نحو السيبرانية في كافة جوانب الحياة. و تقوم فكرة الأمن السيبراني على تأمين البنية التحتية المعلوماتية للدول و التي تتمثل في المنشآت الهامة و نظم المعلومات الهامة و منها نظم إدارة الحكومات الإلكترونية و التي تُدار بها مؤسسات الدول الحيوية، و كذلك النظم العسكرية و الشرطية و القضائية و الإقتصادية و الصناعية و التجارية و غيرها. و يُعد ما يهددها هو تهديد للأمن القومي للدول. لذا قامت العديد من الدول بإعداد الهيئات التي تختص بحماية الأمن السيبراني، و أصبح هذا المفهوم هو جُلّ إهتمام حكومتنا الرشيدة . فقد سخرت له كافة الإمكانيات و أصبح من معايير قياس تحضّر و مدى إمكانيات الدول فيما يتعلق بالجاهزية السيبرانية لمواجهة التهديدات، و الذي يقدم الإتحاد الدولي للإتصالات سنوياً مؤشراً يتم فيه ترتيب الدول بحسب الجاهزية.
للموسسات التعليميه دور مهم في تعزيز مفهوم الامن السيبراني والتي يساهم معرفتها في معرفة الطرق التربوية لتجنب المخاطر التي تتعرض لها الانظمة المعلوماتية، والاجهزة المتصلة بالشبكة العالمية للمعلومات، وتشعب طبيعة هذه الاجهزة، من هواتف خليوية، واجهزة حوسبة شخصية.
تعتمد المجتمعات الحديثة بشكل متنامي على تكنولوجيات الاتصالات والمعلومات المتصلة بالشبكة العالمية. غير أن هذا الاعتماد المطرد ترافقه مجموعة من المخاطر الناشئة والمحتملة التي تهدد وبشكل أساسي الشبكة وأمن المعلومات والمجتمع المعلوماتي وأعضائه. إن سوء الاستغلال المتنامي للشبكات الالكترونية لأهداف إجرامية يؤثر سلباً على سلامة البنى التحتية للمعلومات الوطنية الحساسة لا سيما على المعلومات الشخصية وأمن الأطفال.
لقد بات الأمن السيبراني يشكل جزءاً أساسياً من أي سياسة أمنية وطنية، حيث بات معلوماً أن صناع القرار في الولايات المتحدة الأمريكية، الاتحاد الأوروبي، روسيا، الصين، الهند وغيرها من الدول، أصبحوا يصنفون مسائل الدفاع السيبراني/الأمن السيبراني كأولوية في سياساتهم الدفاعية الوطنية.
بالإضافة إلى ما تقدم، فقد أعلنت أكثر من 130 دولة حول العالم عن تخصيص أقساماً وسيناريوهات خاصة بالحرب السيبرانية ضمن فرق الأمن الوطني. تضاف جميع هذه الجهود إلى الجهود الأمنية التقليدية لمحاربة الجرائم الالكترونية، الاحتيال الالكتروني والأوجه الأخرى للمخاطر السيبرانية.
وبكلمات أخرى، فان الأمن السيبراني يشكل مجموع الأطر القانونية والتنظيمية، الهياكل التنظيمية، إجراءات سير العمل بالإضافة إلى الوسائل التقنية والتكنولوجية والتي تمثل الجهود المشتركة للقطاعين الخاص والعام، المحلية والدولية والتي تهدف إلى حماية الفضاء السيبراني الوطني، مع التركيز على ضمان توافر أنظمة المعلومات وتمتين الخصوصية وحماية سرية المعلومات الشخصية واتخاذ جميع الإجراءات الضرورية لحماية المواطنين والمستهلكين من مخاطر الفضاء السيبراني.
أ.م.عبدالجبار حسين الظفري
This presentation provides an overview of cloud computing. It introduces the group members and defines cloud computing as delivering computing and application services over a network. The key characteristics of cloud computing are on-demand access, network access, shared resources, and scalability. The presentation describes the cloud computing architecture and models including deployment models of public, private, community and hybrid clouds. It also explains the service models of Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).
Virtualization allows multiple operating systems to run on a single machine by creating virtual versions of hardware resources. There are three main types of virtualization: partial, full, and para. A hypervisor manages virtual machines and allocates resources to guest operating systems. Cloud computing delivers computing as an on-demand utility over the internet by sharing resources. It provides software, platforms and infrastructure as services across public, private, hybrid and community clouds. Big data refers to massive volumes of structured and unstructured data that is difficult to process using traditional techniques and requires specialized infrastructure.
This document provides an overview of cloud computing. It begins by describing the disconnect between what businesses want from IT (e.g. fast experimentation) versus what IT wants (e.g. stability). Cloud computing is presented as filling this gap. The document defines cloud computing, discusses its characteristics such as pay-per-use and no long-term commitments. It also outlines the different types of cloud services (PaaS, IaaS, AaaS), common customers of cloud computing, and its advantages like economies of scale.
تشكل القيادة محورًا مهمًا ترتكز عليه مختلف النشاطات في المنظمات العامة والخاصة على حدٍّ سواء، خاصةً في ظل تنامي المنظمات وكبر حجمها وتشعب أعمالها وتعقّدها وتنوع العلاقات الداخلية وتشابكها وتأثرها بالبيئة الخارجية من مؤثرات سياسية واقتصادية واجتماعية، فهي أمور تستدعي مواصلة البحث والاستمرار في إحداث التغيير والتطوير، وهذه مهمة لا تتحقق إلا في ظل قيادة واعية.
عملية القيادة هي ذلك العنصر الإنساني الذي يقود العاملين ويحفزهم إلى تحقيق أهداف التنظيم، والقيادة ليست ميزة شخصية في شخص القائد، ولكنها محصلة لمركب معقد من الفرد، والمجموعة، وظروف التنظيم. والقائد الناجح هو الذي يستطيع كسب تعاون وتفاهم أفراد مجموعته وإقناعهم بأن في تحقيق أهداف التنظيم نجاحًا شخصيًا وتحقيقًا لأهدافهم الشخصية.
ونجد أن عناية إدارة المشاريع تنحصر عمومًا في تحقيق أهدافه عن طريق الجهود الجماعية المشتركة لمجموعة من الأفراد، فلابد من وجود قيادة للمجموعات. ولا شك أن المدير هو الذي يتولى هذه القيادة في المشروع، وهذا يتطلب أن يقوم بتنسيق مستمر لجهود ونشاط أفراد المجموعة التي يتولي قيادتها حتي يستطيع أن يحقق أهدافها بسهولة. وطالما استخدمت في الماضي طريقة الضغط وفرض النفس بقوة من جهة القيادة كطريقة لتحقيق التنسيق بين جهود الأفراد، إلا أن هذه الطريقة قد أصبحت الآن أقل الطرق كفايةً في إنجاز الأعمال. فالقيادة الحقيقية تتضمن رغبةً من المرؤوسين في التبعية وطاعة القادة وتنفيذ أوامرهم.
Virtualization allows for the creation of virtual versions of hardware platforms, operating systems, storage and network resources through software. It works by imitating hardware resources through a hypervisor software layer that creates virtual machines with virtual hardware. This allows multiple guest operating systems to run in isolation on a single physical machine. Virtualization provides benefits like reduced costs, increased hardware utilization, easier management and testing across different operating systems. Popular virtualization platforms include VMWare, Hyper-V, KVM, Xen and VirtualBox.
Need for Virtualization – Pros and cons of Virtualization – Types of Virtualization –System VM, Process VM, Virtual Machine monitor – Virtual machine properties - Interpretation and binary translation, HLL VM - supervisors – Xen, KVM, VMware, Virtual Box, Hyper-V.
Cloud computing allows users to access shared computing resources over the internet. It utilizes virtualization which involves partitioning physical resources and allocating them to virtual machines. This improves resource utilization, enables multi-tenancy, and makes resources scalable and flexible. Virtualization allows multiple operating systems and applications to run concurrently on a single physical server through virtual machines. It provides benefits like hardware independence, migration of virtual machines, and better fault isolation. Security challenges in virtualized cloud environments include issues around scaling, diversity, identity management and sensitive data lifetime.
Virtualization allows multiple operating systems to run on a single hardware system by abstracting the physical hardware resources. It involves separating resources from the underlying hardware or operating system using a hypervisor. The main types of virtualization are server, desktop, application, network, and storage virtualization. Hypervisors manage the virtual machines and come in two types - native/bare-metal hypervisors that run directly on hardware and hosted hypervisors that run within a traditional operating system. Virtualization provides advantages like efficient hardware utilization, increased availability, easier disaster recovery, and energy savings. Popular virtualization software includes Microsoft Hyper-V, VMware Workstation, VirtualBox, and OpenStack.
This document discusses virtual computing and virtual machines. It begins by defining virtual machines as isolated partitions within a computer that allow different operating systems to run simultaneously. Virtual machines prevent applications from interfering with each other and isolate crashes. The document then covers the history of virtual machines, how they function, advantages like consolidation and migration, risks, and characteristics of on-demand access and resource pooling. It provides examples of virtual machine monitors, paravirtualization, and deployment models like public and private clouds.
VIRTUALIZATION: Basics of Virtualization, Types of Virtualizations, Implementation Levels of Virtualization, Virtualization Structures, Tools and Mechanisms, Virtualization of CPU, Memory, I/O Devices, Virtual Clusters and Resource management, Virtualization for Data-center Automation, Introduction to MapReduce, GFS, HDFS, Hadoop, Framework.)
Risk Analysis and Mitigation in Virtualized EnvironmentsSiddharth Coontoor
As companies move towards hybrid cloud solution there are still many private cloud solutions still out there. Traditional risk assessment techniques cannot be applied to such virtual servers. This paper is an attempt to identify key assets and assess risks related to these critical assets.
This chapter discusses key concepts related to cloud computing including types of virtualization, cloud service models, and benefits of cloud adoption. It describes virtualization of servers, storage, networks, and services. Server virtualization allows multiple virtual machines to run on a single physical server. Storage virtualization presents physical storage devices as a single logical pool. Network virtualization logically segments network traffic. Service virtualization provides services like load balancing. Virtualization management coordinates provisioning and orchestration of virtual resources.
IRJET- A Survey on Virtualization and Attacks on Virtual Machine Monitor (VMM)IRJET Journal
This document discusses virtualization and attacks on virtual machine monitors (VMMs). It begins with an introduction to cloud computing and virtualization. Virtualization allows multiple operating systems to run concurrently on a single computer by abstracting physical resources. A VMM or hypervisor manages access to underlying physical resources for virtual machines. There are different types of virtualization including application, desktop, hardware, network, and storage virtualization. The document also discusses the two types of hypervisors - type 1 hypervisors install directly on hardware while type 2 hypervisors run on a host operating system. It concludes by noting that while virtualization improves efficiency, it can also introduce vulnerabilities that attackers may exploit.
Virtualization allows multiple operating systems and applications to run simultaneously on a single physical machine. It provides benefits such as running different operating systems, easier software installation through virtual appliances, testing and disaster recovery using snapshots, and infrastructure consolidation to reduce hardware costs. Virtualization works by allocating resources like memory, processing power, and storage to virtual machines through a hypervisor. Early virtualization technologies date back to the 1960s but it became widely adopted in the 2000s with advances in hypervisor software.
Lecture 11 (Virtualization and Load Balancer).pptxShvnhRthOr
Basically, this presentation is about the concept of virtualization and load balancer in cloud computing. It gives us a detailed knowledge about virtualization and load balancer.
Cloud computing is the delivery of computing resources such as applications, data storage, and computing power over the internet on an as-needed basis. It provides users access to shared pools of configurable computing resources like networks, servers, storage, applications, and services that can be quickly provisioned with minimal management effort. There are three main service models of cloud computing: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). IaaS provides virtualized computing resources, PaaS provides platforms for developing and hosting applications, and SaaS provides users access to applications hosted by the service provider.
Basic Cloud Computing and underlying technology, Hypervisor, Cloud Services, Cloud Deployment Models, AWS, REST APIs, Cloud Investment Trends, Cloud Investments, Cloud Value chain and lot of terms and references for further reading.
Virtualization allows organizations to reduce hardware costs and improve efficiency by running multiple virtual machines on a single physical server. This allows applications to be isolated from one another while sharing common resources. Virtualization provides benefits like faster deployment times, reduced maintenance costs, increased availability, and better performance. While virtualization introduces dependencies on vendors, it provides clear returns on investment for testing environments through lower costs and faster setup times.
This document provides an overview of cloud computing concepts including cloud deployment models, virtualization technologies, and compute virtualization. It discusses the four cloud deployment models (public, private, community, hybrid), hypervisor types, virtual machines versus containers, and topics that will be covered in a CCNP Enterprise 2020 lab workbook training. Key topics covered include virtualization, cloud computing, Cisco virtualization technologies, and containerization versus virtual machines.
Virtualization And Containerization.pptxSMIT PAREKH
The document summarizes a seminar presentation on virtualization and containerization. It begins with an introduction comparing virtualization and containerization. It then covers key topics in virtualization including the different types (hardware, desktop, application, server, storage, network), reasons for virtualization, and components like the hypervisor. The presentation also discusses containerization and its benefits compared to virtualization.
The process of virtualization enables the creation of virtual forms of servers, applications, networks and storage. The four main types of virtualization are network virtualization, storage virtualization, application virtualization and desktop virtualization.
Cloud computing provides on-demand access to computing resources through the internet. It offers advantages like no capital investment, operational costs through pay-as-you-go pricing, flexibility to scale resources up or down, and the ability for users to focus on core business needs rather than infrastructure maintenance. Virtualization allows for the creation of virtual computing resources and multiplexing of physical hardware, reducing costs. Cloud services can be deployed in public, private, or hybrid models depending on requirements.
Virtualization 101 presents a history of virtualization and defines key concepts. It describes how virtual machines isolate operating systems and applications from each other and the physical hardware. Benefits include ease of deployment, mobility, backup/recovery, and hardware independence. Server virtualization partitions physical servers, while desktop virtualization hosts desktops centrally. Application virtualization protects operating systems from application changes. Major virtualization vendors include Citrix, Microsoft, and VMWare.
This Chapter will teach you what is virtualization and the concept of virtualization, Virtual machine its benefit and real time use, understanding Hypervisors (virtual machine monitor)
Server virtualization is a technology for partitioning one physical server into multiple virtual servers. Each of these virtual servers can run its own operating system and applications, and perform as if it is an individual server. This makes it possible, for example, to complete development using various operating systems on one physical server or to consolidate servers used by multiple business divisions.
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Presentation on Top Cloud Computing Technologies
1. Presentation Topic:
Top Cloud Computing Technologies
Course Code: CSE 6145
Course Title: Cloud Computing
Course Teacher:
Dr. A.K.M. Muzahidul Islam,
Professor,
United International University.
Department: Computer Science & Engineering
Program: MSCSE
Section: M
2.
3. Types of Cloud Computing Technologies:
These technologies are different innovation of cloud computing & they work behind the cloud computing platform to make it flexible, reliable
and usable.
Cloud Computing Technology (CCT):
Cloud computing is a next-generation technology based on the internet and network which provides services to the user in multiple ways. It is a
simple data outsourcing resource and can be used temporarily also and it is cost-effective because clients can pay for what they use. It offers
scalable access on-demand to the client instantly by sharing its pool resources to client web pages or IP.
The cloud computing technology is expanding very quickly and is a purposeful concept. It can be used for private cloud implementation either
on-premises or in the data centre of client’s choice.
Reference: (i) https://data-flair.training/blogs/cloud-computing-technology/ (ii) https://www.tutorialride.com/cloud-computing/cloud-computing-technologies.htm (iii) https://www.educba.com/cloud-computing-technologies/
4. A. Virtualization:
Virtualization in cloud computing is a creation of virtual resource such as the desktop operating system, physical storage into virtual form. It is
the ability which allows sharing the physical instance of a single application or resource among multiple organizations or users. This technique is
done by assigning a name logically to all those physical resources & provides a pointer to those physical resources based on demand.
Virtualizations also manage the workload by transforming traditional computing and make it more scalable, economical and efficient. With the
help of virtualization, the customer can maximize the resources and reduces the physical system which is in need.
Working of Virtualization:
Following are the couple of ways that allows to enable virtualization in the cloud:
OS Level Virtualization: Here multiple instances of an application can run in a single OS.
Hypervisor-based Virtualization: Here the OS shares the hardware of the host computer and hence it allows multiple to run on a single host.
Grid Approach: Here the processing workloads are distributed among different physical servers and their results are then collected as one.
Reference: (i) https://data-flair.training/blogs/virtualization-in-cloud-computing/ (ii) https://www.educba.com/virtualization-in-cloud-computing/ (iii) https://software.intel.com/content/www/us/en/develop/articles/the-advantages-of-using-virtualization-technology-in-the-enterprise.html
5. Types of Virtualizations:
Hardware Virtualization
Operating System Virtualization
Server Virtualization
Storage Virtualization
Virtualization of cloud can be categorized into four different
types based on their characteristics.
Benefits of Virtualization:
Firewalls and encryption ensure that all that lies inside the
virtualization cloud is kept protected and any unauthorized
access can be prevented.
It saves us the cost for physical machines examples for which are
servers and hardware.
The users are not required to find the hard drives or storages for
the purpose of data transfer or retrieval.
It enables far more flexible operation which is very efficient and
agile supportive.
Data which is stored in the cloud can be retrieved or transferred
at any time from any device.
Reference: (i) https://www.educba.com/virtualization-in-cloud-computing/ (ii) https://data-flair.training/blogs/virtualization-in-cloud-computing/ (iii) https://www.w3schools.in/cloud-computing/cloud-virtualization/
6. Hardware Virtualization:
In hardware virtualization, the virtual machine manager i.e. VMM is located and installed on
the hardware system. The VMM installs as software in the hardware system and hardware
virtualization is enabled. The main use of hypervisor over here is to monitor and control the
memory, processor and other resources of hardware. Once hardware virtualization is
enabled, one can install a different OS on it and many applications can be run on installed
operating systems.
Types of Hardware Virtualization:
o Full Virtualization: Here the hardware architecture is completely simulated. Guest
software doesn't need any modification to run any applications.
o Emulation Virtualization: Here the virtual machine simulates the hardware & is
independent. Furthermore, the guest OS doesn't require any modification.
o Para-Virtualization: Here, the hardware is not simulated; instead the guest software runs
its isolated system.
Operating System Virtualization:
In operating system virtualization, the virtual machine manager or the virtual machine
software gets installed in the Operating system (OS) of a host than to hardware. The main
use of operating system virtualization is for testing the applications on different operating
systems i.e. over a different platform of OS.
Types of Operating System Virtualization:
o Linux OS Virtualization: To virtualized Linux systems, VMware workstation software is
used. To install any software virtually, users need VMware software to install first.
o Windows OS Virtualization: Users need to install VMware first to install windows OS
virtually.
Reference: (i) https://www.w3schools.in/cloud-computing/cloud-virtualization/ (ii) https://en.wikipedia.org/wiki/Hardware_virtualization (iii) https://www.virtuatopia.com/index.php?title=An_Overview_of_VirtualBox_2
7. Types of Hypervisor:
Type-1: Bare-metal hypervisor is installed directly on the top of the host
hardware. It manages all the hardware resources which are installed inside
the tin. The hardware resource is further allocated to the virtual machine.
Example: VMware vSphere ESXi
Type-2: Hosted hypervisor runs directly on the top of the conventional
operating system. Type 2 hypervisor has some architecture limitation. They
are quite popular in a nonproduction environment.
Example: VMware Workstation for VirtualBox
Server Virtualization:
In server virtualization, the virtual machine manager or the virtual machine software is directly installed on the server
system where it can be divided into many servers based on resource usage with the help of load balancing. This is done to
fulfill the demand of resources and the server administrator plays the role of dividing a physical server into many servers.
Reference: (i) https://www.atlantic.net/what-is-server-virtualization/ (ii) https://data-flair.training/blogs/storage-virtualization-in-cloud-computing/ (iii) https://www.educba.com/virtualization-in-cloud-computing/
8. Storage Virtualization:
In storage virtualization, a grouping of physical storage from different server which are from different
network devices/places happens. Once this is done, it looks like a single storage device. These all are
managed by the virtual storage system. It can also be implemented using software applications. In
storage Virtualization in Cloud Computing the servers are not known about the location of data
storage. The main usage of storage virtualization is to provide back-up and recovery process.
Types of Storage Virtualization:
Block Virtualization:
Here it basically separates the logical storage from that of the physical so that the user/administrator can
access without having to access the physical storage.
File Virtualization:
Here it basically removes the dependencies caused in accessing the data at file level to that of the location
where they are actually present.
Reference: (i) https://en.vcenter.ir/storage/storage-virtualization/ (ii) https://data-flair.training/blogs/storage-virtualization-in-cloud-computing/ (iii) https://www.educba.com/storage-virtualization/
9. Features of Virtualization:
Partitioning: Multiple virtual servers can run on a physical server at the same time
Encapsulation of data: All data on the virtual server including boot disks is encapsulated in a file format
Isolation: The Virtual server running on the physical server are safely separated & don't affect each other
Hardware Independence: When the virtual server runs, it can migrate to the different hardware platform
Different Virtualization Platforms:
These are the top five virtualization platform which can be used and implemented by anyone whether it’s a small business or a large company.
Reference: (i) https://www.w3schools.in/cloud-computing/cloud-virtualization/ (ii) https://www.educba.com/virtualization-platforms/
10. B. Service-Oriented Architecture (SOA):
SOA is an application framework which takes everyday business applications and
divides them into separate business functions and processes called services. This
unique component of cloud application enables cloud-related arrangements that can
be modified and adjusted on request as business needs.
Service-oriented system diffuses two major components, one is Quality as service and
other as software as service.
The function of Quality of service is to identify the function and behavior of a service
from a different view.
The function of Software as a service is to provide a new delivery model of software
which is inherited from the world of application service providers.
It has four properties:
i. It defines a business activity with a specific result, logically.
ii. It is self-contained.
iii. For its customers, it is a black box, meaning the consumer does not have to
be aware of the service's inner workings.
iv. It may consist of other underlying services.
Example:
Web services
- A web page can call multiple loosely coupled system such as payment system.
Reference: (i) https://www.tutorialandexample.com/cloud-computing-technologies/ (ii) https://www.tutorialride.com/cloud-computing/cloud-computing-technologies.htm (iii) https://medium.com/@SoftwareDevelopmentCommunity/what-is-service-oriented-architecture-fa894d11a7ec
11. C. Grid Computing
• Grid computing is a processor architecture that
combines computer resources from various
domains to reach a main objective. In grid
computing, the computers on the network can
work on a task together, thus functioning as a
supercomputer.
• A grid is connected by parallel nodes that form
a computer cluster, which runs on an operating
system, Linux or free software. The technology
is applied to a wide range of applications, such
as mathematical, scientific or educational tasks
through several computing resources. It is often
used in structural analysis, Web services such
as ATM banking, back-office infrastructures,
and scientific or marketing research.
12. History
• The idea of grid computing was first established in the early 1990s by Carl Kesselman, Ian
Foster and Steve Tuecke. They developed the Globus Toolkit standard, which included
grids for data storage management, data processing and intensive computation
management.
Grid vs Conventional
• “Distributed” or “grid” computing in general is a special type of parallel computing that
relies on complete computers (with onboard CPUs, storage, power supplies, network
interfaces, etc.) connected to a network (private, public or the Internet) by a conventional
network interface producing commodity hardware, compared to the lower efficiency of
designing and constructing a small number of custom supercomputers.
• There are also some differences in programming and MC. It can be costly and difficult to
write programs that can run in the environment of a supercomputer, which may have a
custom operating system, or require the program to address concurrency issues.
13. How it works?
• Grid computing works by running
specialized software on every computer
that participates in the data grid. The
software acts as the manager of the entire
system and coordinates various tasks across
the grid. Specifically, the software assigns
subtasks to each computer so they can
work simultaneously on their respective
subtasks. After the completion of subtasks,
the outputs are gathered and aggregated to
complete a larger-scale task. The software
lets each computer communicate over the
network with the other computers so they
can share information on what portion of
the subtasks each computer is running, and
how to consolidate and deliver outputs.
14. How it used?
• Grid computing is especially useful when
different subject matter experts need to
collaborate on a project but do not
necessarily have the means to immediately
share data and computing resources in a
single site. By joining forces despite the
geographical distance, the distributed
teams are able to leverage their own
resources that contribute to a bigger effort.
This means that all computing resources do
not have to work on the same specific task,
but can work on sub-tasks that collectively
make up the end goal. For example, a
research team might analyze weather
patterns in the North Atlantic region, while
another team analyzes the south Atlantic
region, and both results can be combined
to deliver a complete picture of Atlantic
weather patterns.
15. Projects and Applications
• Grid computing offers a way to solve Grand Challenge problems such as protein folding,
financial modeling, earthquake simulation, and climate/weather modeling, and was
integral in enabling the Large Hadron Collider at CERN. Grids offer a way of using the
information technology resources optimally inside an organization. They also provide a
means for offering information technology as a utility for commercial and noncommercial
clients, with those clients paying only for what they use, as with electricity or water.
• As of October 2016, over 4 million machines running the open-source Berkeley Open
Infrastructure for Network Computing (BOINC) platform are members of the World
Community Grid. One of the projects using BOINC is SETI@home, which was using more
than 400,000 computers to achieve 0.828 TFLOPS as of October 2016. As of October 2016
Folding@home, which is not part of BOINC, achieved more than 101 x86-equivalent
petaflops on over 110,000 machines.
• Beside this Sixth Framework Programme of European Union, NASA Advanced
Supercomputing facility (NAS), United Devices Cancer Research Project used grid
computing.
16. Advantages of Grid Computing
Grid computing provides a framework and deployment platform that enables resource
sharing, accessing, aggregation, and management in a distributed computing environment
based on system performance, users' quality of services, as well as emerging open
standards, such as Web services. This is making possible functionality that was previously
unimaginable -- near real time portfolio rebalancing scenario analysis; risk analysis models
with seemingly limitless complexity; and content distribution with speed and efficiency
hereunto unparalleled.
References:
i. https://hazelcast.com/glossary/grid-computing/
ii. https://www.techopedia.com/definition/87/grid-computing
iii. http://ecomputernotes.com/fundamental/introduction-to-computer/grid-computing
iv. https://en.wikipedia.org/wiki/Grid_computing
v. http://azhar-paperpresentation.blogspot.com/2010/04/grid-computing_5337.html
vi. http://www.dartmouth.edu/~rc/classes/intro_grid/Grid-Advantages.html
Can solve larger, more complex problems in a shorter time
Easier to collaborate with other organizations
Make better use of existing hardware
17. D. Utility Computing
• Organizations pay for computing they have
been used
• processing power
• network bandwidth
• software applications
• Utility computing uses a virtualized
infrastructure
• With a virtualized infrastructure:
• people, process and technology are focused on service levels
• capacity is allocated dynamically
• the entire infrastructure is simplified and flexible
• enables a utility or pay-per-use model for IT services
18. Properties of Utility Computing
Although there are many different definitions of utility computing, it will normally include
the following five characteristics of utility computing.
oScalability
The utility computing must be ensured that under all conditions sufficient IT resources are available.
Increasing the demand for a service may, its quality (e.g., response time) does not suffer.
oDemand pricing
So far, companies have to buy his own hardware and software when they need computing power. This IT
infrastructure must be paid in advance of the rule, regardless of the intensity with which the company uses
them later. Technology vendors to achieve this link, for example, the fact that the lease rate for their
servers depends on how many CPUs has enabled the customer. If it can be measured in a company as
much computing power to claim the individual sections in fact, may be the IT costs in internal cost directly
attributable to the individual departments. Other forms of connection with the use of IT costs are possible.
19. oStandardized Utility Computing Services
The utility computing service provider offers its customers a catalog of standardized services. These may
have different service level agreements (Agreement on the quality and the price of an IT) services. The
customer has no influence on the underlying technologies such as the server platform.
oUtility Computing and Virtualization
To share the web and other resources in the shared pool of machines can be used virtualization
technologies. This will divide the network into logical resource instead of the physical resources available.
An application is assigned no specific pre-determined servers or storage of any but a free server runtime
or memory from the pool.
oAutomation
Repetitive management tasks such as setting up a new server or the installation of updates can be
automated. Moreover, automatically allocate resources to services and the management of IT services to
be optimized, with service level agreements and operating costs of IT resources must be considered.
20. Types of Utility Computing
Utility computing is of two types:
i. Internal Utility
ii. External Utility
Internal utility means that the computer network is shared only within a company.
External utility is used by several different computer companies to pool together a
special service provider.
21. Advantages of Utility Computing
i. The client doesn't have to buy all the hardware, software and licenses needed to do
business. Instead, the client relies on another party to provide these services. The
burden of maintaining and administering the system falls to the utility computing
company, allowing the client to concentrate on other tasks.
ii. Utility computing gives companies the option to subscribe to a single service and use
the same suite of software throughout the entire client organization.
iii. Another advantage is compatibility. In a large company with many departments,
problems can arise with computing software. Each department might depend on
different software suites. The files used by employees in one part of a company might
be incompatible with the software used by employees in another part. Utility
computing gives companies the option to subscribe to a single service and use the
same suite of software throughout the entire client organization.
22. Disadvantages of Utility Computing
i. Potential disadvantage is reliability. If a utility computing company is in financial
trouble or has frequent equipment problems, clients could get cut off from the
services for which they're paying.
ii. Utility computing systems can also be attractive targets for hackers. A hacker might
want to access services without paying for them or snoop around and investigate
client files. Much of the responsibility of keeping the system safe falls to the provider
References:
i. https://www.utilitydive.com/news/how-the-cloud-can-change-the-utility-business-model/438611/
ii. http://utilitygridcomputing.blogspot.com/2008/10/advantages-disadvantages-of-uc.html
iii. https://www.hcltech.com/technology-qa/what-is-utility-computing
iv. https://www.techopedia.com/definition/14622/utility-computing
v. https://www.slideshare.net/asmitamtarar/cloud-computing-and-utility-computing