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: '''elmbalsam''') will be a master name server, and the other VM (hostname: '''birchspruce''') 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. 

=== Set-up Master Name Server ('''elmbalsam''')===

#Create a clone virtual machine called '''elmbalsam''' from the '''seedling''' cloning-source. Refer to the table below for '''address''' and '''hostname'''.

#Setup a DNS server on your '''elmbalsam''' virtual machine with noting the following items below:<ol type="a"><li>This virtual machine will be the '''Master DNS server'''.</li><li>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.</li><li> Make certain to include an '''MX record''' for your admin e-mail contact: '''yoursenecaid@coniferous.trees.ops'''</li><li>This machine will allow other machines (outside the '''coniferous.trees.ops.''' zone) to perform DNS lookups among ALL virtual machines within the '''coniferous.trees.ops''' network (i.e. recursive lookups).</li><li>Only Any machine in the '''coniferous.trees.ops''' network may use this Master Name Server machine to perform queries of machines outside the network, however it will be allowed to transfer zone files from this machineroute all such queries through the DNS server you created in lab #3.<br><br></li></ol>#As you will now have a functioning primary DNS server, modify your network configuration file to specify its new IPADDR.

 === Set-up slave Slave Name Server (birch'''spruce''') ===

#Create a clone virtual machine called '''birchspruce''' from the '''seedling''' cloning-source. Refer to the table below for '''address''' and '''hostname'''.

#Setup a DNS server on your '''elmspuce''' virtual machine with noting the following items below:<ol type="a"><li>This virtual machine will be the '''Slave DNS server''' (in case the Master Name Server goes down).</li><li>This virtual machine will obtain its zone files by copying them from the Master Name Server.</li><li>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.</li><li>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 '''elmbalsam.coniferous.trees.ops'''.</li><li>Only machines within the spiral'''coniferous.galaxiestrees.ops ''' domain will be allowed to query this machine.</li><li>This machine will not provide recursive lookup capabilities for any machines.<br><br></li></ol>#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).

As you will now have functioning primary and secondary DNS servers, modify your network configuration file on these machines and on the cloning source to specify the correct IPADDR.  === Reference Materials: List Table of Virtual Machines / DNS Records ===

|-style="background-color:#66cccc;"

|-style="background-color:#66cccc;"

|-style="background-color:#66cccc;"| '''elmbalsam.coniferous.trees.ops''' || ''' 172.30.20.2''' || '''Master''' Name Server

|-style="background-color:#66cccc;"| '''birchspruce.coniferous.trees.ops''' || '''172.30.20.3''' || '''Slave''' Name Server

| '''popularpine.coniferous.trees.ops''' || ''' 172.30.20.5''' || '''SMTP''' mail Server

| '''maplefir.coniferous.trees.ops''' || '''172.30.20.6''' || '''IMAP''' mail Server

|'''oakbristlecone.coniferous.trees.ops''' || '''172.30.20.8''' || '''Samba''' Server

===Set-up Firewall Policies=== Perform the following steps for this section:

# Make certain that you have '''iptables''' services enabled and running instead of ''Firewalld''. # Modify In addition to the iptables to meet basic firewall established in assignment 1, ensure the following conditions:::<ul>::<li>All outgoing traffic is allowed.</li>::<li>Responses to any traffic the machine sends out restrictions are allowed.</li>::<li>Traffic on the loopback interface is allowed.</li>::<li>The host machine (and <b>only</b> the host machine) must be able to ssh to that cloning-source VM.</li>::<li>ICMP traffic is allowed if it originated with the <b>local network only</b>.</li>::<li>As this is acting as the secure basis for later machines, no other traffic should be allowed.</li>:met:</ul>

*'''Demonstrate working assignment to your instructor in class:'''<ol type="a"><li>Students need to demonstrate their assignment functionality to their professor during a lab period <br>(like you would for any lab for "sign-off").</li><li>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.</li><li>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.<br><br></li></ol>

::'''Peter Callaghan's Classes (Sections C &amp; D):'''<ul><li>Refer to instruction on Moodle to download and run marking shell script.</li></ul>

::'''Murray Saul's Classes (Sections A &amp; B):'''<ol><li>Login as '''root''' on your '''host''' machine.</li><li>Change to the '''/root/bin''' directory.</li><li>Make certain that both your '''elmbalsam''' and '''birchspruce''' virtual machines are running.<li>Issue the command to download a checking script for your assignment to your '''host''' machine: <source>wget http://matrix.senecac.on.ca/~murray.saul/ops335/check-assn1-p2.bash</source></li><li>Set execute permissions and run the command: '''/root/bin/check-assn1-p2.bash'''<br>(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.<br><br></li></ol>*'''Additional Assignment Information:'''<ol type="a"><li>This assignment is to be completed individually. '''Group submissions are not allowed'''.</li><li>You are NOT allowed to use local hostname resolution (i.e. no entries in your '''/etc/hosts''' file).<li>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'''.</li><li>'''Late submissions are a subject to a penalty of 10% per day'''.</li><ol> ==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. {| class="wikitable" width=60%|-| colspan=2 style="text-align:center;background-color:#cccccc;" |'''Student Demonstration (in class)'''|-| style="font-weight:bold" | Evaluation Item | width=10% style="text-align:right;font-weight:bold" | Mark|-| ::'''balsam''' and '''spruce''' VMs created| style="text-align:right" | /1|-| ::'''balsam''' and '''spruce''' VMs can connect to Internet| style="text-align:right" | /1|-| ::'''balsam''' and '''spruce''' VMs can perform '''DNS queries outside network'''| style="text-align:right" | /1|-| ::'''balsam''' and '''spruce''' VMs can perform '''forward DNS lookups''' for ALL machines within network| style="text-align:right" | /1|-| ::'''balsam''' and '''spruce''' VMs can perform '''reverse DNS lookups''' for ALL machines within network| style="text-align:right" | /1|-| colspan=2 style="text-align:center;background-color:#cccccc;" |'''Configuration (Checking Script Output)'''|-| style="font-weight:bold;" | Evaluation Item | width=10% style="text-align:right;font-weight:bold" | Mark|-| colspan=2 | '''Master Name Server (balsam) - General Configuration'''|-| ::Domain set| style="text-align:right" | /1|-| ::Has correct ip addresses| style="text-align:right" | /1|-| ::Default gateway set| style="text-align:right" | /1|-| ::DNS1 set| style="text-align:right" | /1|-| ::DNS2 set| style="text-align:right" | /1|-| colspan=2 | '''Master Name Server (balsam) - Named Configuration'''|-| ::Zone transfer (to slave DNS server) limited to spruce only| style="text-align:right" | /2|-| ::Forwards to VM1| style="text-align:right" | /2|-| ::Recursion limited to coniferous| style="text-align:right" | /2|-| ::coniferous.trees.ops forward lookup| style="text-align:right" | /3|-| ::Server is master for coniferous.trees.ops| style="text-align:right" | /2|-| ::NS records in forward zone| style="text-align:right" | /1|-| ::No extra NS records| style="text-align:right" | /1|-| ::Refresh timer set| style="text-align:right" | /1|-| ::Retry timer set| style="text-align:right" | /1|-| ::A records| style="text-align:right" | /3|-| ::spiral.galaxies.ops reverse lookup| style="text-align:right" | /3|-| ::Server is master for 172.30.20| style="text-align:right" | /1|-| ::NS records in 20.30.172| style="text-align:right" | /2|-| ::No extra NS records| style="text-align:right" | /1|-| ::PTR records| style="text-align:right" | /3|-| ::Hierarchy to sub-domain| style="text-align:right" | /3 |-| colspan=2 | '''Slave Name Server (spruce) - General Configuration'''|-| ::Domain set| style="text-align:right" | /1|-| ::Has correct ip addresses| style="text-align:right" | /1|-| ::Default gateway set| style="text-align:right" | /1|-| ::DNS1 set| style="text-align:right" | /1|-| ::DNS2 set| style="text-align:right" | /1|-| colspan=2 | '''Slave Name Server (spuce) - Named Configuration'''|-| ::Queries limited to coniferous.trees.ops| style="text-align:right" | /2|-| ::Non-recursive| style="text-align:right" | /1|-| ::coniferous.trees.ops forward lookup| style="text-align:right" | /3|-| ::Server is slave for coniferous.trees.ops| style="text-align:right" | /1|-| ::Master for coniferous.trees.ops set| style="text-align:right" | /1|-| ::coniferous.trees.ops reverse lookup| style="text-align:right" | /3|-| ::Server is slave for 172.30.20| style="text-align:right" | /1|-| ::Master for 172.30.20 set| style="text-align:right" | /1|-| ::Zone transfer works| style="text-align:right" | /4|-| colspan=2 | '''Firewall policies'''|-| ::queries allowed| style="text-align:right" | /2|-| ::queries limited to coniferous| style="text-align:right" | /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</li><li>Named NOT active:*local hostname resolution remaining in '''/etc/hosts'''| |-| '''TOTAL''' | style="text-align:right" | '''/64'''|} [https://wiki.cdot.senecacollege.ca/wiki/OPS335_Assignment_2_-_Murray_Saul_rev1 assn2]