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Metaverse security is a thing because security is still a thing…
With all this talk about the metaverse and Web3.0, it’s easy (always too easy it seems) for security to become an afterthought, instead of a before-thought, or even a during-thought. So, please. Let’s discuss METAVERSE SECURITY. Even if you still have no idea what the metaverse is or what the “Web 3.0/Web3” is, you must understand that being online on the Internet exposes you much like you are exposed the very moment you leave your house. Once you leave the domain and sanctuary of one’s home, we are exposed and take measures to mitigate risks and privacy. We wear clothing to protect us, yes, and also to shield our most…
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Blockchain & Money: Session 4: Blockchain Basics & Consensus by M.I.T. Sloan School of Management with Professor Gary Gensler
Blockchain & Money: Session 24: Conclusion, by M.I.T. Sloan School of Management with Professor Gary Gensler
Function Call Stack & Activation Records–Functions–STRUCTURED PROGRAMMING Course Notes
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‘Welcome To The Edge!!!’–What Is Edge Computing???
[Note: This is an evolving, continuously updating post for my research purposes to learn more about SASE, or Secure Access Service Edge. First, I’m laying the groundwork for what ‘edge computing’ is.] Edge Computing The term ‘edge’ is all the rage these days. From a infrastructure-centric point of view, “Edge computing is at it’s essence cloud principles applied at the network edge close to the user“[3]. It can include: Virtualization (Compute virtualization, Storage virtualization, Networking virtualization) Resources On Demand API Driven Approach Automated LCM Life-Cycle management Use of Commodity hardware [3] These are some of the powerful core cloud basic principles that make the network edge highly flexible and programmable.…
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What is a ‘NOC’? What is a ‘SOC’? The Battle of ‘NOCs’ vs. ‘SOCs’…
Noc’ing the Soc’s Off You!! First of all, I want to preface this by stating and asking, “Why aren’t NOCs and SOCs the same thing???” Just initially hearing what the acronyms stand for alone, and going based off of that, I would think we would want “Network” and “Security” intertwined and treated with a holistic approach. Similar to how security should be “baked in” to software. NOC–Network Operations Center A NOC is a Network Operations Center (NOC, pronounced like the work ‘knock’), which can also be referred to as a “network management center”. It can be one or more locations from which network monitoring and control (i.e. network management) is…
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Blockchain & Money: Session 7: Technical Challenges by M.I.T. Sloan School of Management with Professor Gary Gensler
Managing The Network–Advanced IP Networking–NETWORKING, SECURITY, & MORE ESSENTIALS—CompTIA Network+ (N10-007) NETWORK-PLUS Certification Prep Course Notes
Blockchain & Money: Session 15: Central Banks and Commercial Banking, Part 1 by M.I.T. Sloan School of Management with Professor Gary Gensler
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HTML & CSS Notes
HTML HTML is the way a webpage is STRUCTURED! It is the markup language that contains all the actual stuff that a web page has. For example, all the text on a page lives inside HTML tags that tell the browser how to order (structure) the content on the page. Note: you can right-click any element on a web page & choose “Inspect Element” to open up your browsers Developer Tools, & it will show you the structure of the page. CSS CSS is the way a webpage LOOKS visually. CSS tells the browser if you want to display any of those tags a particular way, for example, turning a…
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Network Monitoring–Advanced IP Networking–NETWORKING, SECURITY, & MORE ESSENTIALS—CompTIA Network+ (N10-007) NETWORK-PLUS Certification Prep Course Notes
Network Monitoring SNMP (Simple Network Management Protocol) SNMP uses (listens on) UDP port 161 or port 10161 when using TLS. SNMP–managed devices run an agent that talks with a N.M.S. (Network Management Station) (Note: A NMS can run on a virtual machine.) N.M.S. (Network Management Station) SNMPv1 is unencrypted, SNMPv2 added basic encryption, SNMPv3 added TLS encryption. (It’s ok if there are different versions on the same setup.) SNMP allows us to administer & manage network devices from a single source. SNMP Manager is the device that “talks with” SNMP devices. The SNMP Manager (usually a computer) runs the NMS (the interface that talks with the managed devices). The NMS…
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Blockchain & Money: Session 14: Blockchain Payments, Part 2 by M.I.T. Sloan School of Management with Professor Gary Gensler
Blockchain & Money: Session 7: Technical Challenges by M.I.T. Sloan School of Management with Professor Gary Gensler
More Common Enumerable Methods!!! [Ruby Programming Language Notes]
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Managing The Network–Advanced IP Networking–NETWORKING, SECURITY, & MORE ESSENTIALS—CompTIA Network+ (N10-007) NETWORK-PLUS Certification Prep Course Notes
Managing The Network Managing Risk What is Risk Management? Security policies are documents with broad overview statements. Security controls provide more details. Procedures discuss specific implementation of policies. Security Policies Security Policies document to users how to access system resources and what is allowable and acceptable. Safety policies apply to the IT department, too! NDA’s, software licensing, & data restrictions need to be considered to protect an organization. A.U.P. (Acceptable Use Policy) What can people do with company equipment?? defines ownership; web-site access; access times; R.A.P. (Remote Access Policy) VPN usage; Authentication rules; Password Policy Complexity; Lockout IT Safety Policy Lifting equipment; Equipment handling; Spills; Procedures; License Restrictions Usage; Transfer;…
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Portable Computing Security & More–NETWORKING, SECURITY, & MORE ESSENTIALS—CompTIA A+ (220-1001) A-PLUS Certification Prep Course Notes
“The Truth About Blockchain” from HBR by Marco Iansiti & Karim Lakhani
Header Files, Source Files, & Extension Names–C++ Notes (C Plus Plus Notes)
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Building a Real-World Network–Advanced IP Networking–NETWORKING, SECURITY, & MORE ESSENTIALS—CompTIA Network+ (N10-007) NETWORK-PLUS Certification Prep Course Notes
Building a Real-World Network Network Types Know the differences between all the “area network” acronyms. Geographical: LAN, WAN, CAN, MAN, Internet; Wireless: WLAN, PAN; Network Design Network design starts with assessing customer needs. Design considerations include documentation, compatibility with existing hardware & software. Bring in security early & make sure to assess external connectivity. Assess current networking infrastructure. Analyze existing network documentation. Assess wireless needs. Power Management UPS–Uninterruptible Power Supply A UPS is a battery back-up & should be used for short-term power loss. Power generators can be diesel or gas, and are used to maintain power for when electric power is not available. Dual power supplies and redundant circuitry…
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Amazon’s “Sidewalk” Mesh Network Goes Live; All Devices Are Opted-In Automatically By Default
Windows OS Under the Hood–NETWORKING ESSENTIALS—CompTIA A+ (220-1001) A-PLUS Certification Prep Course Notes
Blockchain & Money: Session 20: Primary Markets, ICOs, and Venture Capital, Part 2, by M.I.T. Sloan School of Management with Professor Gary Gensler
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Mobile Networking–Advanced IP Networking–NETWORKING, SECURITY, & MORE ESSENTIALS—CompTIA Network+ (N10-007) NETWORK-PLUS Certification Prep Course Notes
Mobile Networking Cellular Technologies Mobile communication can use cellular towers which have a range of over 17 miles. Cellular WAN has developed several standards to handle data traffic. Mobile protocols include: HSPA–3G, HSPA+–4G, and LTE. WiMax–extension of Wi-Fi networks; uses the 802.16 standard for more range than the 802.11 standard. HSPA (High Speed Packet Access)–single Mbps range 3G technology. HSPA+–multiple Mbps range; considered a 4g technology. LTE–ten’s of Mbps range; 4G technology. Tethering–using the cell phones signal to get other devices online. Can be wired or wireless (hotspot). Mobile Connectivity ANT/ANT+ are used for health applicances (e.g.-monitoring; workout equipment; heart-rate monitors; watches), run in 2.4GHz band, range is 20-30 meters,…
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Virtualization & Cloud Computing–Advanced IP Networking–NETWORKING, SECURITY, & MORE ESSENTIALS—CompTIA Network+ (N10-007) NETWORK-PLUS Certification Prep Course Notes
Virtualization & Cloud Computing Virtualization Basics Don’t confuse virtualization with emulation! Emulation uses software to imitate hardware. Virtualization uses a system’s actual hardware! Recognize the benefits of virtualization. There are two types of hypervisors: Type 1 (bare metal) Type 2 (hosted) Virtualization doesn’t pretend to be anything that it’s not! (Remember, virtualization uses a system’s actual hardware!) Virtualization saves power; & it consolidates hardware; & it makes system recovery easy, & it’s handy for IT research! Hypervisor–V.M.M. (Virtual Machine Monitory) the thing that manages & runs the Virtual Machine for us! Type 2 Hypervisor–runs on top of the host OS. Type 1 Hypervisor–runs directly on top of hardware, independent of…
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Wireless, Virtual, Cloud, & Mobile Networking–Advanced IP Networking–NETWORKING, SECURITY, & MORE ESSENTIALS—CompTIA Network+ (N10-007) NETWORK-PLUS Certification Prep Course Notes
Wireless, Virtual, Cloud, & Mobile Networking Wireless Networking (Note:Ad-hoc networks are Wi-Fi networks comprised only of peer computers.) Intro To 802.11–uses radio waves to transmit info between nodes. A WAP (Wireless Access Point) is a bridging device that connects into an Ethernet network & communicates via radio waves to wireless clients. A WAP has a SSID (Service Set Identifier), a word or phrase used to connect wireless devices to the WAP device. CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) is the method used to prevent wireless collisions. Almost all devices & gadgets today have wireless NICs built-in to them! 802.11 Standards Early wireless standards were 802.11b (2.4-GHz) and 802.11a…
