DigFor 275,
Intro. to Computer Networks

Index & Announcements

The Internet Traffic Report monitors the flow of data around the world. It then displays a value between zero and 100. Higher values indicate faster and more reliable connections.
bigger numbers are better

Announcements

Posting Date Item
(start of semester) Welcome to DigFor 275, Introduction to Computer Networks.
Announcements and updates will be added to this section throughout the semester, as they occur.

Check the links above for specific course materials. Check the Resources link for online versions of slides shown in class.

2018-12-07
All Phelines Seem To Need Dainty Paws

Class Notes

Date Item
2018-08-27
2018-08-29
2018-09-05
2018-09-17
2018-09-24
2018-10-01
2018-10-22
2018-10-29
2018-11-06
2018-11-12
2018-11-26
2018-12-03
2018-12-03
2015-11-19 Lab VM exercise:
2015-02-11
2018-02-26
2018-04-23
2018-04-30
2017-12-06
2016-09-12
2015-10-30 Some practice worksheets. (Not for credit. Don't turn these in.)
2015-02-04
2017-10-02

Software

Networking Software

Wireshark
Network protocol analyzer and packet sniffer. "Wireshark is a leading network protocol analyzers, and is the de facto (and often de jure) standard across many industries and educational institutions."
Snort
Network-intrusion detection and prevention. A security tool.
Nmap
Network mapping tool.
Ncat / netcat network tool:
http://nmap.org/ — homepage for the software; get the newest version here
nmap-6.47-win32.zip, nmap-6.47-setup.exe — local copies of the nmap-for-Windows package, which includes ncat.exe
Ncat Users' Guide
nc111nt.zip — local copy of the older (original) netcat (nc) program, v.1.11; includes source and DOS/WinNT executable
From the nmap homepage:

Nmap ("Network Mapper") is a free and open source (license) utility for network exploration or security auditing.
… the Nmap suite includes an advanced GUI and results viewer (Zenmap), a flexible data transfer, redirection, and debugging tool (Ncat), and a utility for comparing scan results (Ndiff).

Nmap was named “Security Product of the Year” by Linux Journal, Info World, LinuxQuestions.Org, and Codetalker Digest. It was even featured in eight movies, including The Matrix Reloaded, Die Hard 4, and The Bourne Ultimatum.

Virtual Machines

VirtualBox
Virtual-machine manager.

"Presently, VirtualBox runs on Windows, Linux, Macintosh, and Solaris hosts and supports a large number of guest operating systems including but not limited to Windows (NT 4.0, 2000, XP, Server 2003, Vista, Windows 7, Windows 8, Windows 10), DOS/Windows 3.x, Linux (2.4, 2.6, 3.x and 4.x), Solaris and OpenSolaris, OS/2, and OpenBSD."