Visit the Linux Journey website and scroll down to the “Networking Nomad” section. Click on the “Subnetting” item.
Subnetting is one of those things that you do with a calculator in the real world, but you’re not going to be allowed to take a calculator with you if you take a test like the Network+, CySA+ or CCNA exams, so you better learn how to do it on your own.
The “Subnetting” section of the Linux Journey website gives you a quick explanation of what subnetting is, and how it works. It also provides a subnet math cheat method that should get you through most of the problems you’ll encounter. However, if you want a more thorough understanding of how it works (and trust me, you do) visit the Subnetting.net link for further details.
The “How to Subnet” page at Subnetting.net provides a thorough overview of what subnetting is and how it works. If you’re too lazy to read the page (and I know most of you are) you can watch the Subnetting Tutorial video series, and get a full explanation of what subnetting is, how it works, and how to figure out subnets without the need for a calculator.
Once you understand the patterns of how “borrowing bits” for the subnet mask works, take a look at Professor Messer’s Seven Second Subnetting video. In it, he explains a very effective method of quickly determining the number of subnets, the addresses of the created subnets, the broadcast address, and the first and last usable address from a given IP address and subnet mask presented in CIDR notation.
With the materials provided here, you should be able to achieve a strong foundation in subnetting, which will allow you to handle a good portion of the questions on the CCNA and Network+ certification exams, as well as have a strong understanding of how packets figure out how to travel from one host to another, even when they’re on very different networks.
Assigned: January 31st, 2019 Teacher Pacing Due Date: February 1st, 2019
Visit the Linux Journey website and scroll down to the “Networking Nomad” section. Click on the “Network Basics” item. This week we will focus on Networking fundamentals.
Read up on the Network Basics and the OSI model. Much of this will be review from our previous experience in the lab, but we will use this week to go into further detail as to how the different parts of the OSI model work together, and how each part of the process functions to allow machines to communicate with each other.
On Thursday, we will get into subnetting, which is a way of dividing networks up into smaller groups by address.
Assigned: January 28th, 2019 Teacher Pacing Due Date: February 1st, 2019
Students will continue preparing for proficiency in cyber security by completing a tutorial on the VIM Text Editor application within the Linux Command Line Interface.
Visit Webminal.org, and log in using the account that you created last week.
By now you should have completed lessons 1 through 5, and should have a basic understanding of how to navigate, create and manipulate files and directories, and manipulate system processes within the Linux CLI.
This week, we are going to further investigate the manipulation of text files within the Linux CLI by using the first of two very popular text editors built into Linux: VIM
Log into Webminal.org and type “vimtutor” at the command prompt.
Complete the VIM Tutorial. There are seven lessons in the tutorial, and upon completion, you should have a basic understanding of how to create, edit and save files, as well as get additional help in VIM.
You should be able to complete the seven lessons by the end of this week. Pace yourself accordingly.
Assigned: January 22nd, 2019 Teacher Pacing Due Date: January 25th, 2019
Visit Webminal.org, and use the account you created last week to log in.
Continue with the tutorials available in the right column. By now you should have completed Lessons 1 through 3, and be ready to proceed with Lesson 4 today. Stay on pace to have Lesson 5 completed by Wednesday. We will proceed to the VIMTutor text editor practice on Thursday of this week.
Assigned: January 14th, 2019
Teacher Pacing Due Date: January 16th, 2019
Load the Linux Journey website, and navigate to the Command Line instruction module.
Today we will walk through the Command Line online instruction module together, investigating a number of important commands used to navigate and perform actions within the Linux shell.
Visit JSLinux to see a fully-featured Linux shell running a JavaScript-based emulator. This also provides us a very useful platform for practicing CLI commands.
Input the commands described in the module, and observe their output:
echo
pwd
cd
ls
touch
file
cat
less
history
cp
mv
mkdir
rm
find
help
man
whatis
alias
exit
Once you’ve got the hang of these basics, we’ll explore more complex commands in tomorrow’s module.
Visit the Arizona Cyber Warfare Range website. The AZCWR is a live fire cyber warfare range created to further the development of cyber security and information security skills for those who wish to develop such skills. Our goal this semester is to become proficient enough to tackle the challenges presented by the Cyber Warfare Range.
Take a look at the Learning Resources page on the AZCWR website. These are the resources recommended by the AZCWR to gain the skills needed to take on the range, and these will form the backbone of our training this semester.
The first step is to gain proficiency in Linux, as by its own admission, close to 100% of everything the AZCWR (and by extension, a large portion of systems that run the Internet) is done in Linux.
We will begin by visiting the Linux Journey website, and we will walk through the online instruction modules together, learning about the history of Linux, and working our way through a few of the various distributions of Linux, noting the unique features of each and exploring the advantages and disadvantages presented by each flavor of Linux.
Tomorrow, we will begin working with the Command Line Interface in Linux, and investigate a few important commands.
Assigned: January 7th, 2019
Teacher Pacing Due Date: January 8th, 2019
Today we are going to start working with Wireshark – a powerful packet collection and analysis tool that is free to download and pre-installed in the Kali Linux distribution.
Watch Hansang Bee’s Intro and About the Wireshark Environmentvideo to get a basic idea of how the Wireshark interface works, and a few tips on how you can configure the Wireshark GUI to meet your specific needs and preferences.
We will be using this and other videos to gain a familiarity with the Wireshark environment, and look at the methods and construction of network packets, so we can begin to develop “the eye” for packet formation and transmission anomalies.
Assigned: February 28th, 2018
Teacher Pacing Due Date: March 2nd, 2018
Visit the Linux Journey website and scroll down to the “Networking Nomad” section. Click on the “Network Config” item.
Network Configuration is how you set up your network. In Windows, much of this is done for you by the OS. Linux will do this for you if you want it to, but if you want to get hands-on with the interfaces and routing options, then there are many tools within the CLI that will let you do so.
Read through the module to discover how to view and manipulate network interfaces, routing tables, DHCP leases, ARP caches and view network settings using the Network Manager tool.
Don’t forget to get signed out for Advisory tomorrow to participate in the AZ Cyber Warfare Range hacking activity with David Hernandez! It’s going to be a 90 minute activity, so you’ll want to get started during Advisory to participate in the whole thing!
Assigned: February 14th, 2018
Teacher Pacing Due Date: February 15th, 2018
Students will continue preparing for proficiency in cyber security by completing a tutorial on the VIM Text Editor application within the Linux Command Line Interface.
Visit Webminal.org, and log in using the account that you created last week.
By now you should have completed lessons 1 through 5, and should have a basic understanding of how to navigate, create and manipulate files and directories, and manipulate system processes within the Linux CLI.
This week, we are going to further investigate the manipulation of text files within the Linux CLI by using the first of two very popular text editors built into Linux: VIM
Log into Webminal.org and type “vimtutor” at the command prompt.
Complete the VIM Tutorial. There are seven lessons in the tutorial, and upon completion, you should have a basic understanding of how to create, edit and save files, as well as get additional help in VIM.
You should be able to complete all seven lessons by the end of this week. Pace yourself accordingly.
Assigned: January 22nd, 2018
Teacher Pacing Due Date: January 26th, 2018
