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Web Server Administration


Microsoft SQL Server, Oracle 9i, and MySQL are sophisticated DBMSs for larger sites ... Translates host names such as www.technowidgets.com to an IP address. 15 ... – PowerPoint PPT presentation

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Learn more at: http://web.ccsu.edu


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Title: Web Server Administration

Web Server Administration
  • The Basics of Server and Web Server Administration

  • 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

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

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

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

Understanding the Server Environment
  • Networks may have one or more servers
  • With Windows OS computers, servers, and users
    computers can be organized into domains in order
    to centralize the control
  • In Windows server 2000 and Windows server 2003,
    domains can be grouped into forests

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

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

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

Selecting Programs and Databases
  • Non-Microsoft languages are popular, even on
    Microsoft Web servers
  • Perl one of the first and still popular
  • Text-based
  • PHP easy to use
  • Personal Home Page
  • Java Server Pages (JSP)
  • Uses Java Dynamic web page design
  • Macromedia ColdFusion

Selecting Programs and Databases
  • A database management system (DBMS) is used to
    store data used with Web pages
  • Database software is critical to
  • the central concept of a database (collection of
  • categorized according to the data model that they
    support relational, object-relational, network,
    and so on
  • How to query and access the database
  • Popular software DBMS packages
  • 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

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

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

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

Web Servers and Networks
  • Web servers are accessed through the Internet
  • Internet is a giant Network
  • We use OSI and TCP/IP modes to understand network
  • The basic idea is to divide different tasks
    performed at the network level
  • OSI Open Source Interconnection
  • TCP/IP Transmission Control Protocol/Internet
  • What is a Protocol?
  • Set of communication rules

Network Building Blocks- The OSI Model
TCP/IP Model
TCP/IP Application Protocols
  • Hypertext Transfer Protocol (HTTP)
  • Web servers implement this protocol
  • Web servers use HTTP to communicate
  • 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

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

TCP/IP Protocols
  • User Datagram Protocol (UDP)
  • Does not establish a connection, just sends
  • No retransmission, hence, faster
  • Internet Protocol (IP)
  • Provides addressing scheme
  • Internet Control Message Protocol (ICMP)
  • Provides error messages
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