Web Server

1
Web Server

• MIS 4710 - Advance Database
• Jenny H. Wong

2
Introduction

• Web Servers are computers that are connected to
  the Internet and run special Web server software.
• The Web server software
• monitors Web page requests, and
• processes server-side program

3
Well cover

• The Microsoft Personal Web Server software (PMS)
• How to improve Web site performance
• Difference between Absolute Relative URL
  addresses
• Compare Personal web Server to other Web servers
• An example of Microsoft Internet Information
  Server (IIS) in NT environment

4
Overview

• Using Web Server software to effectively create
  and manage a Web Server on a desktop computer.

Alias
PWS
Web Site
IIS
IP
URL
Default.htm
5
Types of Web Server Software

• Personal Web server (PWS)
• Microsoft Internet Information Server (IIS)

6
Personal Web Server

• Only supports up to 10 Web server connections at
  one time.
• Every visitor request for a Web page uses a Web
  server connection.
• For example, a Web Page contains references to
  three graphic image files, a single request for
  the Web page would use a total of four Web server
  connections.

7
Personal Web Manager

• Is a utility that is used to configure and
  monitor PWS.

8
Personal Web Manager

• Navigation toolbar lets you move to different
  pages within the Personal Web Manager application.

9
Personal Web Manager Main Page

• Shows the URL for your PWS, which is the name of
  your computer as it is identified on its network.
• Shows the Drive letter and folder path to
  Personal Web Servers root document folder.
• Views visitor activity at the Web site via the
  Monitoring section.

10
Personal Web Manager Main Page
Message indicating Web publishing listener
process is on
Computer name
Root Document folder
11
Monitoring Web Site Performance

• Active connections, which represent the number of
  active server connections that are currently
  being use to transfer data to visitor browsers.
• Started at shows when the server was last
  started.
• Visitors shows the number of unique IP address
  that have connected to the server since the
  workstation was last restarted.

12
Monitoring Web Site Performance

• Requests shows the number of request received
  since the computer was last restarted.
• Bytes served shows the total amount of data sent
  since the computer was last restarted.
• Most concurrent connections shows the number of
  connections opened to the server simultaneously
  since the computer was last started.

13
Advance Options Page

• Allows you to specify the Web servers root
  document directory and default document
  filenames, and to configure other Web server
  properties.
• Other Web server properties include
• Allows Directory Browsing
• Save Web Site Activity Log

14
Advance Options Page
Virtual directories
Default document filename(s)
15
Default Documents

• Default document will be displayed if the visitor
  did NOT specify the HTML Web page filename after
  the domain name.
• In the Advance Options Page,
• PWS allows you to specify multiple default
  document filenames by listing the filenames
  separated by commas.

16
Other Features Pages

• Publish Page Web Site Page
• Contains wizards that automate the process of
  creating and editing HTML documents and creating
  links to documents.
• Tour Page
• Provides a basic overview of PWS.

17
Web Server Root Directory

• It is the central folder that contains all of the
  Web pages, graphic images, programs, and all
  other files that are available from the Web site.
• The root document folder can be located anywhere
  in the Web servers file system.

18
Directory Browsing

• Enable Directory browsing will allows Web site
  visitors to use a folder listing to navigate to
  different files on the Web server when the
  default document file is not specified or found.

19
Web Site Activity Log

• It maintains a list of the IP addresses of
  computers that connect to your Web site.
• A new log file is created each month and saved in
  the Windows\System\LogFiles\W3svc1
• Note that the log file entry is NOT written until
  PWS is shut down by rebooting.

20
Web Site Activity Log

• You can view the log file contents using any text
  editor or word processor.
• In order to view the log file, you must restart
  your computer, and then view the log file before
  any new connections are made to the Web server.

21
Web Site Activity Log

• The activity log records the IP address of a site
  visitor, the date and time when the visitor
  accessed.

22
Virtual Directories

• A virtual directory is a folder that does not
  have to be physically within the root document
  folder, but always appears to client browsers as
  though it is.
• It is associated with a physical folder within
  the Web servers file system.

23
Virtual Directories

• Virtual directories allow you to change the
  physical location of Web page files on your Web
  server without changing the URLs that the
  visitors use to access the files.

24
Virtual Directory Access Privileges
25
Factors of Web Site Performance

• The speed of the Web servers network connection.
• The amount of memory that a Web server has
  allocated to process Web page requests.
• The Web servers processor speed.

26
Factors of Web Site Performance

• The number of other visitors currently requesting
  Web site pages or files.
• The size of Web page files and the number size
  of their embedded graphic object files.
• The resources needed by Web-based programs
  scripts in Web pages.

27
Referencing Files on A Web Server

• One of most effective way to manage referenced
  objects is by specifying object locations using
  absolute or relative URL addresses.

28
Absolute URL Address

• Three main components of an Absolute URL Address
• Web server IP address or Domain name
• The complete folder path or virtual directory
  path to the Web page file
• The name of the Web page file
• For example http//localhost/Ebay/Products.html

29
Relative URL Address

• A Relative URL address specifies the location of
  a file relative to the current working directory.
• Format
• subfolder name/file name, or
• ../filename

30
Microsoft Internet Information Server (IIS)

• In the next few slides, we will generally go
  through the screens available in IIS and the
  difference between PWS IIS.

31
PWS vs. IIS

• IIS provides more sophisticated administrative
  feature, which
• supports directory browsing that can be enabled
  or disabled for specific directories.
• Provides Write access for virtual directory.
• (Download Upload files)
• Allows the Web server administrator to tune the
  Web site for the number of expected hits per day
• Provides a higher level of security through NT
  file system permissions.

32
Microsoft Internet Information Server (IIS)
33
IIS

• Service Tab
• ICP Port
• Connection Timeout
• Max. Connections
• Anonymous Logon

34
IIS

• Directories Tab
• Manage directories in your Web Server
• Features include adding Virtual directory,
  specifying Default document and enable web
  browsing.

35
IIS

• Logging Tab
• Can be log to
• File, or
• SQL/ODBC Database.

36
IIS

• Advanced Tab
• Allow administer to either grant or deny access
  to specific IP address.

37
Summary

• Web server software is a software that is
  designed to create and manage a Web server on a
  desktop computer.
• Personal Web Manager and Microsoft Internet
  Service Manager are both utility that is used to
  configure and monitor Web Server.

38
Any Question?