OPS335 Assignment 1 - 2016-1

OPS335 Assignment 1

Weight: 10% of the overall grade

Due Date: Ask your professor for exact date

Your tasks

Virtual Network

Create a new virtual network in your host.

• Give it the name asg1net, forwarding to any physical device.
• Addresses in this network will start with 10.161, followed by the last two digits of your student number (just as your main virtual network). The subnet mask must be 255.255.255.0
• There must not be a DHCP server running in this network.
• All the machines for this assignment will be connected to this virtual network.

source

Create a virtual machine you will use as a cloning source. It should have a command-line only interface. Configure it to be a good cloning source. Since every other machine in this network will be cloned from it - you should set it up to be pleasant to use.

1. Don't make the virtual drive too big - you'll need space for it and clones you make from it. 2GB should be enough for anything you do in this assignment.
2. Log in and run some commands you expect to be there, and make sure they're installed (minimum commands needed: host, dig, netstat, links).
3. Don't install software here that you'll only need in one of the cloned VMs. E.g. if you're going to install apache in a clone - install it there, not in the source - since you don't want apache installed everywhere.
4. Configure your network with a static configuration. See the table below for IP address and hostname.
5. Make sure you have iptables services enabled running instead of Firewalld. The default rules should suffice.
6. If you created a user when you installed the machine - delete that user. You'll only have root left.
7. Set up an SSH server on this machine. Make sure root is only allowed to log in using key authentication. Other users should still be able to log in with a username/password.
8. Generate a new key pair on your host (don't delete the existing one), called id_rsa_asg1
9. Make sure you can log in from your regular user on the host to root on the virtual machine using specifically that key.
10. Do not place the private key on the VM.

ns1

Clone the souce to create a machine that will be your master DNS server on this network. See the table below for address and hostname.

Your DNS server must have all the records for the zone ops335a1.org listed in that table, including records for machines that don't exist yet. It's important to understand that DNS records live independently from the machines they are pointing to.

A default setup for a master DNS server is mostly enough, but make sure the address of your admin contact is yoursenecaid@ops335a1.org, and that slave DNS servers will check for updated records from this master every 30 minutes.

ns2

Clone the souce to create a machine that will be your slave DNS server on this network. See the table below for address and hostname.

ns2 will serve the same records as ns1.

List of Machines / DNS Records

The ones in italics are DNS records only, you don't need to set up the machines for this assignment.

caption

Name	Address	Purpose
cell	cell
cell	cell

Name

Address

Purpose

source.ops335a1.org

10.161.X.254

Disk image to clone from when creating new machines.

ns1.ops335a1.org

10.161.X.2

Master name server

ns2.ops335a1.org

10.161.X.3

Slave name server

file.ops335a1.org

10.161.X.4

File server

www.ops335a1.org

10.161.X.5

Web server

host.ops335a1.org

10.161.X.1

Your host machine