Laboratory 1

Due - Tuesday, September 27, 2005

Part 1 - Ethereal

Complete Ethereal Lab 1. The full details of the lab are available from the website of the text http://www.awl.com/kurose-ross as well as from http://gaia.cs.umass.edu/ethereal-labs/labs/Ethereal_INTRO.pdf. You should hand in answers to the 4 questions at the end of the lab.

Part 2 - Getting Started with Unix

Complete the Unix tutorial and hand in answers to the questions following the instructions.

Part 3 - Fun with Protocols

Hand in answers to the following questions:
  1. Do review question 14 at the end of chapter 2. Turn in the transcript of your session.
  2. Do review question 17 at the end of chapter 2. If you are not sure how to view the headers using your email client, see me. Turn in the header itself along with a short (3-4 sentences) description of what the Received: lines of the headers indicate.
  3. Read through section 2.4. Telnet to the Mt Holyoke mail server (smtp.mtholyoke.edu) and send me a message that appears to be from an email address other than your own. Note, the mail server will check to make sure that the domain name is valid and will also require you to enter the RCPT TO: command twice. In the body of the message indicate that you are the sender of the message and that you are sending the mail for question 3. Nothing to turn in here!

Part 4 - Compiling and Running a Java Program

Carefully read the lesson Object-Oriented Programming Concepts available on the Sun website (http://java.sun.com/docs/books/tutorial/java/concepts/index.html). Compile and run the three source files provided by the lesson. You can use either the command line compiler, or the IDE of your choice.

Modify the code such that the color of the "spot" appears as red. Compile and run your modified code. Hand in the java file(s) containing your modified code.



Sami Rollins