Podcast
Questions and Answers
What does an SMTP relay do?
What does an SMTP relay do?
Which communication protocol is designed for home IoT systems?
Which communication protocol is designed for home IoT systems?
What is an example of a medium-range protocol?
What is an example of a medium-range protocol?
What is a significant concern regarding encryption for embedded devices?
What is a significant concern regarding encryption for embedded devices?
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Which security measure can help protect embedded devices from external attacks?
Which security measure can help protect embedded devices from external attacks?
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What is a characteristic of the RIOT OS used for IoT devices?
What is a characteristic of the RIOT OS used for IoT devices?
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What is a primary advantage of fog computing?
What is a primary advantage of fog computing?
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Which benefit is specifically associated with edge computing?
Which benefit is specifically associated with edge computing?
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What is a drawback of serverless architecture?
What is a drawback of serverless architecture?
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Which integration type allows combining both cloud and on-premises resources?
Which integration type allows combining both cloud and on-premises resources?
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What is a hypervisor?
What is a hypervisor?
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Which type of virtualization allows direct access to the hardware?
Which type of virtualization allows direct access to the hardware?
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Which of the following is a feature of virtual hard disks (VHD)?
Which of the following is a feature of virtual hard disks (VHD)?
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What technique is used to improve performance by prioritizing workloads in virtualization?
What technique is used to improve performance by prioritizing workloads in virtualization?
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What does rapid provisioning refer to in the context of virtualization?
What does rapid provisioning refer to in the context of virtualization?
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Study Notes
Protocol, App, and Cloud Security
- This chapter covers protocol, app, and cloud security
- Discusses host virtualization, skills overview, and key terms like physical machine, virtual machine, virtual hard disk (VHD), hypervisor, and load balancing.
- Covers topics like using VMware Player, Hyper-V, creation of virtual machines, use of Windows Sandbox, container creation/security
Host Virtualization
- Traditional computing model: Applications depend on the operating system, and the server has limited resources.
- Virtualization model: Multiple virtual machines run on a single host, sharing resources. (Resources are better utilized)
Virtualization Skills Overview
- Use VMware Player
- Use Hyper-V
- Create virtual machines
- Use Windows Sandbox
- Create containers
- Secure containers
Key Terms
- Physical machine: The actual computer hardware (e.g., hard drives, RAM, motherboard).
- Virtual machine (VM): A software-based replica of a computer.
- Virtual hard disk (VHD): A file that the VM treats as a hard drive.
- Hypervisor: Software layer that creates and manages VMs, sits between the guests (VMs) and hardware (physical server).
- Load balancing: Distributing workload across multiple servers to improve performance and reliability.
Key Definitions
- Physical machine: The physical computer with hardware, such as hard disk drives, optical drives, RAM, and the motherboard.
- Virtual machine: A software implementation of a computer system that executes programs in the same way as a physical machine.
- Virtual Hard Disk (VHD): A file that simulates a hard drive for a VM.
- Hypervisor: A layer of software between the guest OS (the software running on the VM) and the hardware (physical computer).
- Load balancing: A technique to distribute a work load among multiple computers or resources for optimal utilization and response time.
Host Virtualization Overview
- Various diagrams show traditional computing models and virtualization models, and the financial implications of each scenario.
- Virtualization delivers several benefits including agility, increased resources utilization, flexibility, improved performance, scalability, and cost savings.
Hardware Virtualization
- Full virtualization (Type 1, bare metal and Type 2, hosted).
- Partial virtualization.
- Para-virtualization
Hypervisor Types
- Type 1: Runs directly on the hardware.
- Type 2: Runs on top of an existing operating system.
Virtualization Benefits
- Reduced costs (better ROI).
- Provides redundancy and load balancing.
- Minimizes downtime.
- Enables rapid provisioning.
- Takes advantage of snapshots and rollback.
- Simplifies VM management and easier to move/copy VMs
- Less costly to own and operate.
Virtual Machine Escape
- Attackers can execute code on the host operating system or hypervisor
- Admin tasks like deleting VMs, powering off, or allocating resources are ways they can compromise a host
Summary
- Summarizes virtualization roles, hypervisor types, virtualization benefits, VM escape attack
Summary
- Summarizes virtualization topics
Summary
- Summarizes clustering
Resource Pooling
- Creates within a cluster
- Allocates CPU and RAM
- Prioritizes workloads, protects critical apps
- Establishes boundaries
Fog Computing
- Improves cloud performance
- Lower latency
- Expanded capacity
- Better data security
- Timely decisions
- Reduction of costs
- Improved customer engagement
Edge Computing
- Improve real time processing and decisions
- Improves response time
Benefits - Fog Computing
- Lower latency
- Greater security capacity
- Enhanced storage capacity
- Real-time response
Serverless Architecture
- Developers focus on core business issues
- Benefits from cost savings
- Drawbacks - Performance and Security Issues
Benefits - Serverless
- Data sync
- Increased agility
- Faster time to market
- Improved operational efficiency
- Reduced operational costs
- Improved flexibility & scalability
Drawbacks - Serverless
- Performance issues
- Security issues
- Privacy concerns
Cloud Services Introduction
- IaaS, PaaS,SaaS, SECaaS
- Concepts like Cloud Computing
- On-demand self-service
Cloud Deployments
- Public cloud
- Private cloud
- Community cloud
- Hybrid cloud
Mobile Devices
- Key terms like app whitelisting, geotagging, data exfiltration, sandboxing, jailbreaking, and sideloading.
- Includes security policies and methods
Mobile Device Connection Methods
- Wi-Fi
- Bluetooth
- NFC
- Cellular (LTE)
- Geolocation (GPS)
- Geofencing
Enforcing Mobile Device Security
- iOS Sandboxing
- Android devices (using reputable sources)
- Jailbreaking
- App sideloading
- Credential management system
Mobile Device Management
- Mobile Device Management (MDM)
- Mobile Application Management (MAM)
- Enterprise mobility management (EMM)
- Unified endpoint management (UEM)
Intune
- Managing mobile devices, manages mobile applications, controls data access, and complies with security policies
Mobile Application Management
- Life cycle(add, deploy, configure, protect, retire)
- App Catalogs
- Self-service portal
- Remote management
- Automatic/manual updates
Summary
- Summary with key functions
Email Security
- Protecting clients from spam, securing email servers, configuring email filters, using iPads/iPads to secure email, and using S/MIME and other appropriate technologies
Key Terms
- Spam
- SMTP relay
- Phishing Emails
Key Definitions
- Spam (unwanted email)
- SMTP relay (an email server)
- Phishing email
Email Security - Diagrams
- Multiple Diagrams showing different security approaches.
In-Class Practice
- Specific labs to complete
Class Discussion
- Questions and answers about the different topics and concepts presented in the class.
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