OPS335 Assignment 2 - Murray Saul rev1

This is NOT Assignment 2!
This is the ROUGH WORK for Murray Saul's section for OPS335 Assignment 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 e-mail servers: a Mail Transfer Agent called pine and a Message Store (IMAP) called fir. You will also use the seedling cloning source to create a Samba server called bristlecone. As you perform and submit this assignment, you MUST run at least the balsam Master Name server in order to resolve domain names to IP addresses.

General Requirements

Weight: 10% of the overall grade

Due Date: During Week 13 (in class)

Detailed Requirements

Set-up Mail Transfer Agent (pine)

Perform the following steps for this section:

1. Create a clone virtual machine called pine from the seedling cloning-source. Refer to the table below for address and hostname.
2. The normal user on your host machine must be able to ssh to the root account on each machine without being prompted for a password.
3. Create a regular user for this virtual machine using your Seneca userID.
4. This machine will accept incoming email for any user account in the coniferous.trees.ops domain and any named machine in that domain.
5. Any machine within the coniferous.trees.ops domain will be able to route outgoing email through this server.
6. Only the address associated with pine.coniferous.trees.ops will be used for SMTP.
7. This machine will use postfix's built-in LDA, and will store mail in maildir format, placing each users' mail in a sub-directory of their home directory called mail.
8. This machine will provide users with unencrypted remote access to their mail boxes through dovecot using IMAP. Note that this access will only be available to machines inside the coniferous.trees.ops network, and only through the ip address and hostname for fir.coniferous.trees.ops
9. No other machine in the domain will accept email.
10. Any mail sent directly from this machine will use the domain as the sending address (i.e. user@coniferous.trees.ops)
11. All mail sent to this network should automatically be redirected here using DNS.

Set-up Mail Delivery Agent / Message Store (fir)

Perform the following steps for this section:

1. Create a clone virtual machine called fir from the seedling cloning-source. Refer to the table below for address and hostname.
2. The normal user on your host machine must be able to ssh to the root account on each machine without being prompted for a password.
3. Create a regular user for this virtual machine using your Seneca userID.
4. This machine will accept incoming email for any user account in the coniferous.trees.ops domain and any named machine in that domain.
5. Any machine within the coniferous.trees.ops domain will be able to route outgoing email through this server.
6. Only the address associated with pine.coniferous.trees.ops will be used for SMTP.
7. This machine will use postfix's built-in LDA, and will store mail in maildir format, placing each users' mail in a sub-directory of their home directory called mail.
8. This machine will provide users with unencrypted remote access to their mail boxes through dovecot using IMAP. Note that this access will only be available to machines inside the coniferous.trees.ops network, and only through the ip address and hostname for fir.coniferous.trees.ops
9. No other machine in the domain will accept email.
10. Any mail sent directly from this machine will use the domain as the sending address (i.e. user@coniferous.trees.ops)
11. All mail sent to this network should automatically be redirected here using DNS.

Network Configuration

As you will now have functioning primary and secondary DNS servers, modify your network configuration file for the pine, fir, and bristlecone servers specify the correct IPADDR.

Table of Virtual Machines / DNS Records

All the machines in the following table require DNS records.

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.
balsam.coniferous.trees.ops	172.30.20.2	Master Name Server
spruce.coniferous.trees.ops	172.30.20.3	Slave Name Server
pine.coniferous.trees.ops	172.30.20.5	SMTP mail Server
fir.coniferous.trees.ops	172.30.20.6	IMAP mail Server
bristlecone.coniferous.trees.ops	172.30.20.8	Samba Server

Set-up Firewall Policies

In addition to the basic firewall established in assignment 1, ensure the following restrictions are met:

1. Any machine may query balsam
2. Only the machines in the coniferous.trees.ops network may query spruce.
3. Only spruce is allowed to get zone transfers from balsam

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 balsam and spruce 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. You are NOT allowed to use local hostname resolution (i.e. no entries in your /etc/hosts file).
  3. 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.
  4. Late submissions are a subject to a penalty of 10% per day.

Evaluation Rubric

Here is an evaluation rubric (in table form) showing you how you will be evaluated for this assignment. Part of the rubric is marked from professor observation from student demonstration of assignment in class, and the other part is based on output from the results of an assignment checking script that the student will download and run.

Student Demonstration (in class)
Evaluation Item	Mark
balsam and spruce VMs created	/1
balsam and spruce VMs can connect to Internet	/1
balsam and spruce VMs can perform DNS queries outside network	/1
balsam and spruce VMs can perform forward DNS lookups for ALL machines within network	/1
balsam and spruce VMs can perform reverse DNS lookups for ALL machines within network	/1
Configuration (Checking Script Output)
Evaluation Item	Mark
Master Name Server (balsam) - General Configuration
Domain set	/1
Has correct ip addresses	/1
Default gateway set	/1
DNS1 set	/1
DNS2 set	/1
Master Name Server (balsam) - Named Configuration
Zone transfer (to slave DNS server) limited to spruce only	/2
Forwards to VM1	/2
Recursion limited to coniferous	/2
coniferous.trees.ops forward lookup	/3
Server is master for coniferous.trees.ops	/2
NS records in forward zone	/1
No extra NS records	/1
Refresh timer set	/1
Retry timer set	/1
A records	/3
spiral.galaxies.ops reverse lookup	/3
Server is master for 172.30.20	/1
NS records in 20.30.172	/2
No extra NS records	/1
PTR records	/3
Hierarchy to sub-domain	/3
Slave Name Server (spruce) - General Configuration
Domain set	/1
Has correct ip addresses	/1
Default gateway set	/1
DNS1 set	/1
DNS2 set	/1
Slave Name Server (spuce) - Named Configuration
Queries limited to coniferous.trees.ops	/2
Non-recursive	/1
coniferous.trees.ops forward lookup	/3
Server is slave for coniferous.trees.ops	/1
Master for coniferous.trees.ops set	/1
coniferous.trees.ops reverse lookup	/3
Server is slave for 172.30.20	/1
Master for 172.30.20 set	/1
Zone transfer works	/4
Firewall policies
queries allowed	/2
queries limited to coniferous	/1
Less Deductions (half-mark for EACH VM): SELinux NOT Enforcing VM hostname NOT set firewalld enabled / running iptables disabled / not running No Yum update Named NOT active local hostname resolution remaining in /etc/hosts
TOTAL	/64