Web Server Administration CITA 310 - PowerPoint PPT Presentation

1 / 33
About This Presentation
Title:

Web Server Administration CITA 310

Description:

A service that allows users to download files from and upload files to a server. DNS ... Often differing speeds for uploads and downloads ... – PowerPoint PPT presentation

Number of Views:69
Avg rating:3.0/5.0
Slides: 34
Provided by: ssi49
Category:

less

Transcript and Presenter's Notes

Title: Web Server Administration CITA 310


1
Web Server AdministrationCITA 310
  • Instructor Dr. Douglas Dune

2
Web Server Administration
  • Chapter 1
  • The Basics of Server and Web Server Administration

3
Overview
  • Review the Internet and the World Wide Web
  • Learn about server administration
  • Learn about Web server administration
  • Explore the common tasks and services performed
    by administrators
  • Examine networking building blocks
  • Compare Web server platforms

4
Review the Internet and the World Wide Web
  • The Internet is a worldwide network of networks
  • Shares WAN used by the international
    telecommunications network
  • Uses TCP/IP
  • Where the Internet uses the HTTP protocol, it is
    called the Web
  • Web servers use HTTP to communicate
  • The Internet is not centrally controlled

5
Review the Internet and the World Wide Web
  • Internet had its origins in the 1960s
  • In 1995 a high-speed backbone was created
  • Included 4 network access points (NAPs)
  • More have been created since then
  • Now much Internet traffic is handled without
    going through NAPs
  • Peering agreements allow this

6
Understanding Server Administration
  • Server administrators
  • Focus on the LAN
  • Provide access to software and services
  • Make sure environment is reliable and consistent
  • Minimize harm that users can do to network

7
Working with Users
  • A LAN can server hundreds or even thousands of
    users
  • Users need to be productive
  • Users like consistency
  • Roaming profiles allow users to have the same
    personalized desktop environment on multiple
    computers

8
Establishing Access Control
  • Users need just enough access to do their jobs,
    but not more
  • Typically, users are organized into groups, and
    groups are given access to network resources
  • Users can be given different access to the same
    resources
  • A document can be read by everyone but modified
    by only specific people

9
Understanding the Server Environment
  • All but the smallest network includes more than
    one server
  • With Windows computers, servers and users
    computers can be organized into domains in order
    to centralize control
  • In Windows 2000 and Windows Server 2003, domains
    can be grouped into forests

10
Understanding Web server Administration
  • Web server administrators focus on the Internet
  • Need to work with ISPs and Web page developers
  • Typically, a Web server provides information to
    anyone who requests it over the Internet
  • Web servers can contain other applications such
    as FTP and e-mail

11
Understanding Web server Administration
  • Depending on the size of the organization, some
    tasks may be delegated
  • Web page development
  • Database design
  • Programming
  • E-mail administration
  • Security

12
Selecting Programs and Databases
  • Web server administrators need to install
    programming languages
  • Web developers use a variety of languages
  • Active Server Pages (ASP)
  • Original language from Microsoft
  • ASP.Net
  • A newer environment that includes many languages
  • Java Server Pages (JSP)

13
Selecting Programs and Databases
  • Non-Microsoft languages are popular, even on
    Microsoft Web servers
  • Perl one of the first and still popular
  • PHP easy to use
  • Java Server Pages (JSP)
  • Macromedia ColdFusion

14
Selecting Programs and Databases
  • A database management system (DBMS) is used to
    store data used with Web pages
  • Microsoft Access is appropriate for small sites
  • Microsoft SQL Server, Oracle 9i, and MySQL are
    sophisticated DBMSs for larger sites
  • Standard Query Language (SQL) is the language
    used to communicate with the DBMS

15
Managing E-mail Servers
  • Open by design to accept e-mail from anyone
  • Spam can be a problem to manage
  • Specific utilities can be used to help minimize
    spam
  • Viruses are commonly sent by e-mail
  • Use virus detection software and keep it updated

16
Other Applications
  • Firewall
  • Helps protect your Web server environment from
    attack
  • FTP
  • A service that allows users to download files
    from and upload files to a server
  • DNS
  • Translates host names such as www.technowidgets.co
    m to an IP address

17
Administrators' Common Tasks and Services
  • Installing and configuring systems
  • Maintaining security
  • Monitoring the system
  • Maintenance and backup

18
Network Building Blocks-The OSI Model
19
TCP/IP Model
20
TCP/IP Protocols
  • Hypertext Transfer Protocol (HTTP)
  • Web servers implement this protocol
  • Simple Mail Transfer Protocol (SMTP)
  • Used by e-mail servers (and sometimes Web
    servers) to send e-mail
  • Post Office Protocol Version 3 (POP3)
  • Used to retrieve e-mail

21
TCP/IP Protocols
  • File Transfer Protocol (FTP)
  • Transfers files to and from server
  • Domain Name Service (DNS)
  • Translates host names to IP addresses and IP
    addresses to host names
  • Transmission Control Protocol (TCP)
  • Creates a reliable connection between two
    computers

22
TCP/IP Protocols
  • User Datagram Protocol (UDP)
  • Does not establish a connection, just sends
    messages
  • Internet Protocol (IP)
  • Provides addressing scheme
  • Internet Control Message Protocol (ICMP)
  • Provides error messages

23
Connecting Your LAN to the Internet
  • Your ISP connects to the Internet
  • A WAN connection is used between your building
    and the ISP
  • A T-Carrier connection is often used
  • A digital connection for voice and data

24
Common T-Carrier Connections
25
Connecting to the Internet
26
Other ways to Connect to the Internet
  • Integrated services digital network (ISDN)
  • Dial-up access
  • Basic Rate Interface (BRI) up to 128 Kbps
  • Primary Rate Interface (PRI) up to 1.544 Mbps
  • Digital Subscriber Line (DSL)
  • Often differing speeds for uploads and downloads
  • Depending on type, up to 6.1 Mbps for downloads
    and 1.544 Mbps for uploads
  • Cable Modem
  • Shared access cable provided by cable TV company

27
Web Hosting Solutions
  • Standard hosting
  • Your site resides on the same computer with many
    other sites
  • Cheapest solution
  • Dedicated server
  • You have a server that only you use
  • Co-location
  • Your own server is physically located at the
    company that does your Web hosting

28
Web Server Platforms-Microsoft
  • Windows NT (IIS 4)
  • IIS (Internet Information Server) was added in
    the mid-1990s, and support for ASP was added
    later
  • Windows 2000 (IIS 5)
  • IIS part of the OS from the beginning
  • .NET Framework add-on allows use of ASP.NET
  • Windows Server 2003 (IIS 6)
  • .NET Framework integrated into OS

29
Other Microsoft Server Products
  • Application Center
  • Allows you to manage a cluster of servers as if
    it is one server
  • Biztalk Server
  • Connects to your business partners using XML
  • Commerce Server
  • Builds e-commerce sites in a short amount of time

30
Other Microsoft Server Products
  • Internet Security and Acceleration Server
  • Combines a firewall product with a Web cache
  • Operations Manager
  • Helps decrease support costs for a server
    environment
  • SharePoint Portal Server
  • Set up a site that is highly personalized

31
UNIX/Linux
  • UNIX was introduced in 1969
  • Linux is from the early 1990s
  • Based on MINIX
  • Three basic components
  • Kernel central portion of OS
  • File system provides input and output
    mechanisms
  • Shell provides user interface

32
Linux
  • Source code is freely available
  • Developers can make changes
  • Available from a number of organizations
  • Red Hat
  • Mandrake
  • SuSe

33
Summary
  • Server administration focuses on LANs
  • Web server administration focuses on the Internet
  • Both types of administrators install, configure,
    and maintain servers
  • Many pieces make up the network
  • There are many Web server platforms from which to
    choose
Write a Comment
User Comments (0)
About PowerShow.com