CSCI A348/A548 Lecture Notes 1 Fall 1999

Introduction and announcements:

• Lectures meet in LH 102 (TR, 7pm)
• Labs meet in LH 115 (W or R 4:40pm). Access provided by the instructor.
• Office hours will be kept in LH 115 or LH016 as posted or by appointment.
• Newsgroup: ac.csci.a348
• Instructor's coordinates:

  E-mail: dgerman@indiana.edu
  Telephone: 855-2510
  Office: Franklin Hall M005

• Burrow accounts need to be created: use

  http://accounts.ucs.indiana.edu

  to create your own account if you don't have one. You will need to have an IUB Network ID. If you experience any difficulties please ask your instructor for help.
• The burrow cluster is located in LH004. You can get individual access to the room if you go to LH215 with your student photo ID and request access. You will need to fill out a form and shortly after that you will be able to use your student ID to enter the room.
• Textbook in the bookstore and on reserve at Swain
• Brief overview of the course.

  Initial server setup
  CGI and Perl (server side) programming
  Client side (Java and Javascript) programming
  Writing and understanding servers and clients
  Network protocols
  Java servlets and Java RMI
  Web security
  Web site design considerations
  Team projects

  This course is mostly oriented towards providing functionality (transactions) rather than just static hierarchies of documents although we will discuss those as well.

  Programming will be present throughout the course since we will want to build an understanding of how things work on the web so that we can program into it the desired behaviour. At the same time programs are easier to grade.

The following is related to the material that starts on page 68 in your textbook (Stein). You will need to use your own username and port number (once you are being assigned one) to install Apache on the machine that has been assigned to you.

• You need to have a burrow account (I will use dgerman)
• You will be assigned a machine (I will use tucotuco)
• You will also be assigned a port number (I will use 19904)
  You must use the machine and port number assigned to you so please replace the underlined characters in the instructions that follow with your own coordinates.
• Log into the machine assigned to you to install your web server.
  (Be sure to read the README file sooner or later).
• mkdir apache
• cd apache
• cp /u/dgerman/apache_1.3.1-sparc-sun-solaris-26.tar.gz apache.tar.gz

  You would otherwise get it from http://www.apache.org

  For the next sequence of commands explanations will be provided in the labs and lecture.

• gunzip apache.tar.gz
• tar xvf apache.tar
• cd
• mkdir httpd
• cd httpd
• cp -R ../apache/apache_1.3.1/* .
• mv src/httpd-solaris26 httpd
• cd conf
• cp httpd.conf-dist httpd.conf
• vi httpd.conf

  and make the following changes:

  ServerRoot /u/dgerman/httpd
Port 19904

  You need to use your own username and the port assigned to you!

  Ports will be distributed in the lab and will be posted on the course web page.

  Also add a line like this

  LockFile /tmp/apache.lockfile.your_username

  at the end of httpd.conf. Make sure it ends in your username.

• cp srm.conf-dist srm.conf
• vi srm.conf

  and make the following changes:

  DocumentRoot /u/dgerman/httpd/htdocs
ScriptAlias /cgi-bin/ /u/dgerman/httpd/cgi-bin/

• cp access.conf-dist access.conf
• vi access.conf

  and make the following changes

  <Directory /u/dgerman/httpd/htdocs>
<Directory /u/dgerman/httpd/cgi-bin>

  Underlined strings need to be replaced with your coordinates.

• cd ..

  Try http://tucotuco.cs.indiana.edu:19904 now.

  Again, what's underlined should be replaced with your own coordinates.

• Start the server:

  ./httpd -d .

  Try http://tucotuco.cs.indiana.edu:19904 again now.

• To restart the server:

  cd logs
kill -HUP `cat httpd.pid`

• To stop the server:

  cd logs
kill `cat httpd.pid`

Scripts, Programs, Web Pages

• Change the server's home page (located in /u/dgerman/httpd/htdocs/index.html)

• Write a simple Perl script:

  #!/usr/bin/perl
print qq{
  Welcome to the course.
};

  and place it in /u/dgerman/httpd/cgi-bin/hello

  Make it executable and try

  http://tucotuco.cs.indiana.edu:19904/cgi-bin/hello

  now.

  Change the hello script to send back a larger HTML document.

• Edit compile and run Hello.java:

  class Hello { 
    public static void main (String[] args) {
      System.out.println("Hello, world."); 
    } 
  } 
  

• telnet to your server and request a file.

Assignment 1