Lab Assessment

HIT172 Operating Systems and Applications/2020/CDU/NT/AU

HIT172 Operating Systems and Applications

Lab Assessment 02

Due date: Monday, May 4th, 2020

Time: Before Midnight (Darwin Local Time)

Value: 20%

Submission Format

You should take the screenshot of your computer display while solving

the exercises and paste the image in the doc\docx file. You should also

write briefly at the end of each screenshot explaining its purpose and

finally summarize your understanding of the whole task (what you have

done and how) that you completed.

Your name, ID and course code and name should be there in the

coversheet of your document.

Submit the document in PDF format, in case you can’t find anyway to

convert it to PDF, then submit in doc\docx format. Remember

submitting in PDF, keeps the formatting\fonts etc. of your document in

place and the overall presentation remains nice and intact.

Online research are allowed for all the tasks.

Lab Assessment 02

TASK-01: Linux Commands

Linux: 10

Following are some tasks which should be executed in a terminal and

the corresponding screenshot should be included.

• Find out the ID of a specific process and cease its execution using that ID.

• Show how to move two files, F1.txt and F22.txt from Device directory (/dev) to Home directory.

• Investigate the usage of ‘adduser’ command, and attach a screenshot showing the successful completion of the command by

creating a new user named ‘HarryYourID’. Replace ‘YourID’ with

your CDU student ID. For instance – Harrys298900; don’t use

‘298900’, use your own ID. Online research is allowed for this

task.

• Using Method-1* for chmod, set permission for a file in the format rwx rw- -w- and rw- r-x --x.

• Using Method-2* for chmod, ‘Give Execute and Write’ permission to group and owner for a file.

* Refer to the chmod section of Linux command file for Method 1

and 2.

TASK-02: Remote Desktop Connection

Setting up Remote Desktop Connection: 04

You are working as HelpDesk Support for an organization where your

usual duty involves providing remote users various IT related supports.

Majority of these users are placed in locations where high-speed LAN

(10Mbpds) are not available. Assume they are using the Darwin VM at

their end, and you have Canberra VM at your end. Now you will have to

set up Remote Desktop Connection from Canberra to Darwin; so that

you, with the physical access to Canberra VM, can remotely connect to

Darwin VM. You also have to ensure the connection is optimized for low-

speed broadband networks.

Follow the submission format and before starting this task ensure VMs

can ping each other.

TASK-03: Windows Firewall with Advanced Security

Creating Firewall Rules: 06

www.cdu.edu.au or cdu.edu.au has the IP address of 138.80.10.69.

Create an outbound firewall rule in any of the VMs that will allow the

VM’s browser to access all other websites except that of CDU’s one.

Name the rule according to your own CDU student ID, for instance

s298900. But don’t use ‘298900’, use your own ID.

Before you initiate the task, change the VM’s Network from ‘intnet’ to

‘NAT’, this will allow access to internet through your host (physical)

machine. So also ensure your physical machine is connected to internet.

You must provide all the necessary screenshots up until the creation of

the rule as well as results following the submission format. While

providing the result, include browser’s screenshot where it shows it can

access other websites but not CDU; plus in the same screenshot, include

ping screenshot where it shows – within one command box – a ping

request to 8.8.8.8 succeeds whereas another request to 138.80.10.69

fails (the format for screenshot is given next page).

8.8.8.8 is a public DNS server used and maintained by Google so it is

always up and running.

Now once you are done with the above and taken necessary screenshots

for the whole process and result; make required changes to the rule so

that this time, Ping requests to CDU goes through but the website still

remains unavailable. (hint: ping uses ICMP while Web Traffic uses TCP).

I’ve attached the following screenshot for reference, as you can see, the

browser and command box must be present within a single screenshot.

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