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Summer 2020 - IT Infrastructure & Security

Link to Zoom Virtual Classroom:


(7/13 Later) Points are posted through Quiz #1, about mid-term. The terms go by twice as fast in the summer, twice the stuff to study, less time to do the projects, please keep showing me good stuff...

(7/13) Quiz #2 will be next Monday the 20th on Data Centers, Storage, and Data Representation...

Please make a first pass through reading these topics. The videos are being moved to Kaltura from the retired video server, should be there mid-day Tuesday.

Major points for Storage are Flooding file systems is one of the major causes for servers crashing; Slack Space is a major reason for the flooding; Some applications and OS cause lots of Fragmentation; Disk Access is thousands or times SLOWER than RAM; Disk and SSD access and transfer is measured in milliseconds, RAM is nanoseconds; Attachment: DAS in midrange and mainframe holds the records; SAN is a close second; NAS sucks bandwidth.

Major points for Data Representation are shown in the card...

(7/8) Due Wednesday 15th: Rough Bill of Details. Read through the Memo From the Boss and note what needs to be paid for up front for this LAN. Send a single pdf with scans of hand-written notes or spreadsheet used for the rough bill of details. Show what's needed, quantity, and price. The professionally done purchase orders are due at the end of the semester. This rough bill of details is to get your choices approved before putting effort into the final purchasing docs.

(7/7) The videos for Memo From the Boss and Rack Diagram at the end of the card for the LAN Project topic have been moved to Kaltura and are ready for use. Please find them and be ready to get started on the LAN Project after you've done the Simple Floorplan...

(7/6) Thanks to the students who pointed out that the relaxed due date for the HOL Part #3 that was announced before the 4th was not posted.

Part #3 - Standards Compliant Website built with command line tools is due for full credit the 15th, not the 8th. I apologize for the omission...

(7/6) Before we get started with the LAN Project, there are five points to be earned for the Simple Floor Plan:

The Video for the Simple Floorplan link at the bottom of the topic for the LAN project has been patched into place and this project is live. It will be the topic for tech support Wednesday. Please get started on the Visio diagram of the Simple Floorplan and be ready with questions. Last semester's first run with these quickly re-rigged videos got back lots of excellent drawings and I wish for similar or better this 2nd time thru with these videos replacing demos in the classroom...

If you like this work and would like to do more of it, add technical drawing to your resume and put together a portfolio that shows how well you can do it...

(7/2) Y'all are reviewing HTML5 and CSS3 with these projects, are probably working the first time on a web server and considering how to customize your site at info300.net. The author of Websitesetup.org/html5-periodical-table noticed we're using html5 and css3 in our class projects, and suggested that his periodical table of html5 be referenced. I wish him all the best, and continue to preach the orthodoxy of CSS3, HTML5, semantic markup, viewports, media queries, &c...

Prior Notes

Notes posted earlier have been moved to Prior Notes...



(6/8) Syllabus, Provost's Policies, Classroom Behavior &c, Quiz & Makeup Policy. On-line: Headset is nice to have, quiet place with builtin mike and speakers is OK, WebCam required on for class meetings, Id held next to face may be requested...


(6/8...) Definitions; Sketch The Internet & Ethernet; Visualize & Secure Network Traffic; Setup a LAMP Stack in the cloud, firewall it; Infrastructure & Regulation, Management; Data Centers & IX; LANs; Network Management and Security Tools; Visualizing Traffic: Internet, LAN, WiFi Analysis, RF Spectrum, Firewall & its Logs, Packet Sniffing, Port Scanning; Networks Surveyed by Name, Size, & Technology; PSTN, Ethernet, Internet, VPN, Real Private Networks; The Ground & Fried Networks... Study Questions | Lectures for Networks Topic (updated 6/30)

Hands on Linux & Tech Market Brief :

(6/10...) Working server-side with linux command line and the vi editor. Develop an outline for a brief on an approved topic about the IT marketplace, suitable for a blog or portfolio at LinkedIn. Publish the brief as a mobile-friendly website, responsive, standards-compliant, a clear example of semantic markup that fits the outline. (HOL Parts 1 thru 3 Video Lectures)

LAN Project:

(7/6) Memo From the Boss, Visio demo, Intro to Networking, DMZ Firewall, Rack Diagram, Office Floorplan with Network Drops, Read and Follow Directions, Prep Purchase Orders & Summaries of up-front purchases and recurring costs. Videos: Simple Floor Plan | Memo From the Boss & Rack Diagram

Data Centers

(7/6) Data Center Fundamentals; Tradeoffs: Onsite vs. Data Center, Mainframe vs. Server Farms; Provisioning a Data Center; Internet Exchanges... (Video Lectures | Study Questions)


(7/8) Current Storage Tech: HDD, SSD, Flash, Hyperconverged, Cloud, &c; EDP History: Cards, Tape, Drum, Disc, SSD; HDD Geometry and Management: CHS vs. LBA, Slack Space, Fragmentation, &c; RAID; Attachment: DAS, NAS, SAN, NFS, The Cloud; Transaction Logging & Backup... (Video Lectures | Study Questions)

Data Representation

(7/13) Modern Digital Computers are binary machines that input, store, compute, and output all kinds of data. Numbers are represented more or less directly as Binary, Decimal, and Hex Integers are precise and sluggish, Floats are very quick table lookups, Decimals are precise and slow. Characters are represented as ASCII, ANSI, EBCDIC, and UniCode. When data moves from one platform to another, there's usually some translation or conversion involved. (Video Lectures | Study Questions)


(TBA) Platforms: Hardware, Software, Dependence, Independence, Cross-Platform, Scalability; VARs, Vertical Markets, CPUs; Operating Systems: FOSS & Proprietary; 7 Modern OS Functions; Range of Hardware Platforms: Embedded through Super (Study Questions)

Security & Professional Standards

Pillars of Information Security: CIA, CIAAN, ACID, Transaction Logging, Backups, Redundancy in Depth; Protection; EDI; Threat vectors; Professional Standards: COBIT, ITIL, GES, SOX, PCI, HIPAA, &c... (Study Questions


4 or 5 Generations of Programming Languages; Types of Software: Malware, Security, Version Control & Divers Others...

Data Structures & Algorithms

Watch this spot...

Prior Topics:

When there are some, after the quiz, they'll be here...

G Saunders,
Dept of Information Systems
VCU School of Business

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