OPS335 Assignment 1b - Murray Saul

This is NOT Assignment 1 Part 2!
This is the ROUGH WORK for Murray Saul's section for OPS335 Assignment 1 - Part 2. These assignment specifications are NOT complete.

Once the assignment specifications are ready, then a link will appear in the Main OPS335 WIKI .

Purpose

In this assignment, you will use the 335assign virtual network and the seedling cloning-source that you created in assignment 1 (part 1) to create two name-servers. One of the cloned VMs (hostname: elm) will be a master name server, and the other VM (hostname: birch) will be a slave name server. You will install and setup the master and slave servers in order to provide various domain name resolutions for existing servers, and for servers that will be created and used in assignment #2.

General Requirements

Weight: 7% of the overall grade

Due Date: During Week 9 (in class)

Detailed Requirements

Set-up Master Name Server (elm)

Perform the following steps for this section:

1. Create a clone virtual machine called elm from the seedling cloning-source. Refer to the table below for address and hostname.
2. Create a regular user for this virtual machine using your Seneca userID.
3. Setup a DNS server on your elm virtual machine with noting the following items below:
   1. This virtual machine will be the Master DNS server.
   2. This machine will provide forward and reverse lookups of ALL virtual machines in the coniferous.trees.ops zone, including resource records for virtual machines that do not currently exist, but will exist when you perform your assignment #2.
   3. Make certain to include an MX record for your admin e-mail contact: yoursenecaid@coniferous.trees.ops
   4. This machine will allow other machines to perform DNS lookups among ALL virtual machines within the coniferous.trees.ops network (i.e. recursive lookups).
   5. Only this Master Name Server will be allowed to transfer zone files from this machine.
      
      
4. As you will now have a functioning primary DNS server, modify your network configuration file to specify its new IPADDR.

Set-up slave Name Server (birch)

Perform the following steps for this section:

1. Create a clone virtual machine called birch from the seedling cloning-source. Refer to the table below for address and hostname.
2. Create a regular user for this virtual machine using your Seneca userID.
3. Setup a DNS server on your elm virtual machine with noting the following items below:
   1. This virtual machine will be the Slave DNS server (in case the Master Name Server goes down).
   2. This virtual machine will obtain its zone files by copying them from the Master Name Server.
   3. This Slave DNS server will check for updated records from the Master DNS server every day. If the initial attempt fails, then it will attempt every hour until it succeeds.
   4. This machine will provide forward and reverse lookups of ALL virtual machines in the coniferous.trees.ops zone, the zone files for which will be obtained from elm.coniferous.trees.ops.
   5. Only machines within the spiral.galaxies.ops domain will be allowed to query this machine.
   6. This machine will not provide recursive lookup capabilities for any machines.
      
      
4. As you will now have a functioning secondary DNS server, modify your network configuration file to specify its new IPADDR. You will also have to add another IPADDR for your DNS server you setup in lab #1 to allow DNS queries from your virtual machines to outside server (TIP: You cannot use your primary or secondary DNS option).

Table of Virtual Machines / DNS Records

All the machines in the following table require DNS records. The rows not shaded represent future servers that will be created in Assignment #2.

Hostname	Address	Purpose
spruce.coniferous.trees.ops (your existing source)	External Facing Address: DHCP assigned Internal Virtual Bridge (virbr1): 172.30.20.1	Your host machine
seedling.coniferous.trees.ops	172.30.20.100	Cloning-source used to create other servers for other assignments.
elm.coniferous.trees.ops	172.30.20.2	Master Name Server
birch.coniferous.trees.ops	172.30.20.3	Slave Name Server
popular.coniferous.trees.ops	172.30.20.5	SMTP mail Server
maple.coniferous.trees.ops	172.30.20.6	IMAP mail Server
oak.coniferous.trees.ops	172.30.20.8	Samba Server

Set-up Firewall Policies

Perform the following steps for this section:

1. Make certain that you have iptables services enabled and running instead of Firewalld.
2. Modify the iptables to meet the following conditions:

All outgoing traffic is allowed.

Responses to any traffic the machine sends out are allowed.

Traffic on the loopback interface is allowed.

The host machine (and only the host machine) must be able to ssh to that cloning-source VM.

ICMP traffic is allowed if it originated with the local network only.

As this is acting as the secure basis for later machines, no other traffic should be allowed.

Assignment Submission

The student is required to prove to their professor that their set-up works correctly during the regularly-scheduled lab period.

Assignment Evaluation Details

• Demonstrate working assignment to your instructor in class:
  1. Students need to demonstrate their assignment functionality to their professor during a lab period (like you would for any lab for "sign-off").
  2. Students are required to prepare everything ahead of time so that you can quickly demonstrate to your instructor that all required parts of your assignment are working.
  3. Do do proceed to the next step until you have demonstrated your assignment to your instructor to check for errors that may cause problems when running the checking script.
     
     

• Download and run a shell script to check your work (Depending on your OPS335 Instructor):

Peter Callaghan's Classes (Sections C & D):

• Refer to instruction on Moodle to download and run marking shell script

Murray Saul's Classes (Sections A & B):

1. Login as root on your host machine.
2. Change to the /root/bin directory.
3. Make certain that both your elm and birch virtual machines are running.
4. Issue the command to download a checking script for your assignment to your host machine:

   wget http://matrix.senecac.on.ca/~murray.saul/ops335/check-assn1-p2.bash

5. Set execute permissions and run the command: /root/bin/check-assn1-p2.bash
   (You shell script contents will be mailed to your Seneca email and to your OPS335 instructor's Seneca email. If you do NOT receive an e-mail message in your Seneca email account, then there is a problem, and you MUST rerun or contact your OPS335 instructor immediately.
   
   

• Additional Assignment Information:
  1. This assignment is to be completed individually. Group submissions are not allowed.
  2. Test your machine to make sure it works. If a machine is not accessible (e.g. will not boot, can not be accessed through ssh from your host, etc.), or is otherwise non-functional, you may be told to resubmit.
  3. Late submissions are a subject to a penalty of 10% per day.