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Chapter 6 Internet Service Providers Hosting Your Web Site PowerPoint PPT Presentation

Chapter 6 Internet Service Providers Hosting Your Web Site OBJECTIVES How ISPs Work How to Choose an ISP How to Choose and Register Your Domain Name Introduction Before you complete the design of web site, you need to find a way to put it on the Internet. Internet Service Provider

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Chapter 6 internet service providers hosting your web site l.jpg

Chapter 6Internet Service ProvidersHosting Your Web Site


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OBJECTIVES

  • How ISPs Work

  • How to Choose an ISP

  • How to Choose and Register Your Domain Name


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Introduction

  • Before you complete the design of web site, you need to find a way to put it on the Internet.

  • Internet Service Provider

    • A specialized company that connects customers with PCs and browsers to the Internet


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Introduction

  • 1969 only four hosting company exist

  • 1985 there were 1,960 companies

  • By 2005 there were more than 3,000ISPs in the USA and more than 15,000 world wide

  • For a fee, the ISP gives you a software package, a user name and password, and an access number to connect to the Internet


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Introduction

  • ISPs provide

    • Virtual hosting ( virtual domain ):- a company with its own domain name, hosted by an ISP to conduct business via the internet.

  • Domain name: a company’s identifier in cyberspace

  • Allow you to have your own domain name such as www.yourcompany.com

  • Rather than using your ISPs domain name

    www.isp.com/yourcomany/


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Introduction

  • Most of MS to S organizations turn to ISPs for the following

    • Companies need a full time stuff and webmaster to handle day to day changes and enhancement to the site

    • ISPs generally provide free management for websites, such as security, and backup

    • ISPs have high speed connectivity

      • T1 and T3 lines to main Internet hubs


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Introduction

  • T1 line transmit long distance data at 1.5 megabits ( million bits) per second

  • T3 line with capability of transmitting 44.7 MBit per second


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Introduction

  • Most of MS to S organizations turn to ISPs for the following

    4. ISPs can handle real access and real physical security, from power supplies and air conditioning to network links

    5. ISPs often have the latest technology for thousands of customers (cost)


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HOW ISPs WORK

  • ISPs are cheaper, more reliable, and provide services that are difficult to match in house

  • To access web site, it has to be stored on a web server that is always connected to the Internet by a high-speed link, Infrastructure includes the following

    • Standby Electric Power

      • To keep the site available in the event of a blackout

    • Redundant “Fault-Tolerant” Servers

      • To ensure that your web site will continue in the event a hard drive or a server breaks down


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HOW ISPs WORK

  • Web Site Infrastructure

    3. Redundant Communications Lines

    • To keep your site active in the event of phone line or a router goes down

      4. One or More Firewalls

    • To protect your site from hackers and unauthorized access


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TYPES OF SERVICE PROVIDERS

  • Internet Service Provider (ISP)

  • Application Service Provider (ASP)

  • Business Service Provider (BSP)

  • Wholesale Service Provider (WSP)

  • Wireless Application Service provider (WASP)


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TYPES OF SERVICE PROVIDERS

  • Internet Service Provider

    • Specialized company that connects customers with PCs and browser to the internet

    • Allow user to access the Internet via modem using a voice telephone network or directly via cables.

    • Provides an interface between the public phone system and Internet digital phone lines, which carry packets instead of voice conversation


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TYPES OF SERVICE PROVIDERS

  • Application Service Provider

    • A company that offers packaged software for lease online

    • Application renter

    • Focuses on high end application like database

      • These applications are expensive, take a lot of time to install, and hard to manage


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TYPES OF SERVICE PROVIDERS

  • Business Service Provider (BSP)

    • Internet service developer that rents only its own proprietary application via web

    • Generally the software is specific in function


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TYPES OF SERVICE PROVIDERS

  • Wholesale Service Provider (WSP)

    • Service provider that packages a selection of BSP application for distribution online

    • fall into one of three categories

      • Large wholesale access provider

      • Smaller Internet backbone

      • Local ISPs


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TYPES OF SERVICE PROVIDERS

  • Wireless Application Service provider

    • A company that offers untethered application

    • Responsibilities involve hosting, developing, and manage applications

    • WASP infrastructure require integration between the web and the wireless network

    • Deal with a wide range of hardware and mobile devices and wireless networking protocol


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TYPES OF WEB HOSTING SERVICES

  • Web hosting : providing, managing, maintaining hardware, software, integrity, security, and reliable high speed Internet connection

  • Dial-Up Access

  • Developer’s Hosting : customer focused

  • Web Hosting: provides variety of services

  • Industrial Strength Hosting: more reliable


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Packets, Routers, and Lines

  • On the Net, Information is sent and receive in packets, which is small in size

  • Packets can take a different route across the Net

  • Packets may arrive at different time and different order.


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Packets, Routers, and Lines

  • Conversion from analog to digital and vice versa introduce noise, noise limits certain modem to 33,600bps.

  • If the packets coming from the ISP to the phone lines could remains digital all the way to the customer, data could be sent at 56K from to ISP to customer

  • The way to do this for customer is to get (ISDN) Integrated services digital network line from their phone company


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The Connection

  • When you dial into an ISP you dial into router owned by the ISP

  • Also ISP has a router connected to the larger ISP, this second router is the gateway to the Internet


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HOW TO BECOME AN ISP

  • ISPs have 3 major target market

  • Residential

    • Fastest growing segment

  • Commercial

    • Included e-commerce and e-business

    • Most critical service to provide

      • High level of quality

      • Dedicating connection

      • security

  • Public

    • Like universities, schools, …


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ISP Services

  • An ISP is expecting to provide the following

    • Domain Name Service (DNS)

      • A repository where the domain name for each ISP is stored

    • E-mail

      • The most commonly used service on the Internet

      • ISP must dedicated a separate server for e-mail

      • Key to consider mail storage capacity and maximum size for each user


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AN ISP Services

  • An ISP is expecting to provide the following

    • Radius server

      • A network access server that authenticates a user ID and password and trigger accounting to complete the customer chargeable session

      • The network access server forward request to this server database to authenticate a user Id and password, if the combination is valid the request is accepted, otherwise is rejected


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ISP Services

  • An ISP is expecting to provide the following

    • WWW server

      • Can be run on the same hardware as DNS, e-mail, and Radius system.

    • FTP

      • Accept connection form client trying to connect to its server

    • Internet relay chat (IRC)

      • Text-based chat service, where users connect to local server as part of a larger network of IRC servers


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ISP Services

  • An ISP is expecting to provide the following

    • News server

      • Internet network news is becoming more popular, because there is so much data traffic for news

    • HTTP proxy service

      • Generates and manages a local store of Internet objects such as web pages, images, or FTP and deliver the objects when requested (caching)

      • When a web page is requested, the proxy server examines its internal database to see if the page is store in the cache

      • Minimize data traffic, speed up request


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Technical Services

  • Local loop:

    • the connection between the provider and the physical location

    • Cost depends on the size and distance from the provider and local telephone company central office.

  • Several cable-based options are available, The include T1 and T3 lines, fiber optic, and number of server


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Technical Services

  • Broadband connection

    • The Speed of the old dial-up service via modem

    • Broadband communication can carry multiple messages simultaneously over the same medium


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Broadband for home access

  • Cable modem:

    • First introduce in 1995

  • Digital subscriber line (DSL)

    • Is ideal for homes that that are within four miles of central office

    • Speeds are rated at 50 times faster than cable modem

  • Fiber-optic network

  • Wireless technology


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HOW TO BECOME AN ISP

  • Contract with a regional network providing with bandwidth

  • Procure a leased communications line to one of the company’s routers

  • Procure hardware and software to manage Internet communication

  • Set up dial-in lines to connect users

  • Maintain enough manpower to manage ISP traffic and deal with users


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Factors in choosing an ISP

  • Bandwidth

  • Connection availability

  • Customer volume and traffic

  • Traffic volume during peak hours

  • Virtual hosting feature

  • Capacity of e-mail box

  • Stability and staying power

  • Customer service and local support

  • Price


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HOW TO CHOOSE AN ISP

  • Bandwidth Size

    • E.g. High-speed T1 and T3 lines

  • Connection Availability and Performance

    • Are the most important criteria in evaluating an ISP

    • Normal: 5 – 10MB

  • Virtual Hosting

    • Allow you to have your own domain name

  • E-mail Aliases

    • An ISP allows a certain number of e-mail addresses per account


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HOW TO CHOOSE AN ISP (cont.)

  • Stability and Staying Power

    • How often customers switch from one ISPs to another

    • Staying power: is the ISPs ability to continue to provide services.

  • Local Access

    • You need to know how many local access numbers an ISPs has and how they are a available to use

  • Customer Service and Technical Support

    • Does your ISPs have a 24-hour support line that you can call

  • Reliability

    • Delays, busy signals while trying to log on, or slow down

    • How quickly you can go online depends of the time of the day

  • Price


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ISP NEEDS FOR ONLINE MARKETING

  • Register Domain Name

  • Capture and Forward E-mail

    • Receiving and sending mail are important activities for an online merchant

  • Host the Web site

  • Technical and Managerial Support


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WHAT IS A DOMAIN NAME?

  • Unique Internet address that represent a web site

  • Domain Name System (DNS)

    • Web server that stores registered domain names and their numeric equivalents

    • translates between IP address and URL

  • All web access traffic and IP addresses operates at TCP/IP layers


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Domain Name

  • To send a message to another computer on the internet the following steps are required

    • Sending PC has unique IP address in the form xxx.xxx.xxx.xxx where each of xxx is between 0 and 255

    • TCP breaks the message into specific bits called packets, each packet has the sender’s IP address

    • IP Packets are sent to their destination via router with minimizing congestion

    • On the receiving end TCP check to make sure that all packets are assembled correctly to present the message


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HOW A MESSAGE IS BEING SENT?

IP=231.131.154.12

IP=112.134.54.51

Packets

Packets

Receiving PC

Sending PC

Router

To: 231.131.154.12

From:112.134.54.51

Figure: TCP/IP and Message Transmission


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Domain Name

  • The company’s Web URL should be

    • easy to remember

    • Present what the company is about


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How does a DOMAIN NAME work?

  • URL has 3 major part

    • http:// :- internet protocol and separator ://

    • www. Name.xxx :- The domain name

    • Subdirectory of the file /


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REGISTRATION CONSIDERATIONS

  • One or two close names

  • Unique product domain name

  • Ideal company domain name


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CYBER COMMANDMENTS OF WEB SITE DOMAIN NAMES

  • When choosing domain name, legal implication must be consider

    • Determine whether proposed domain name infringes any trademarks

    • Determine whether proposed domain name dilutes any famous marks

    • Obtain federal trademark registration of proposed domain name

    • Register proposed domain name with InterNIC

    • Get permission before linking to other Web sites

    • Watch for expanded top-level domain names and registries


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PITFALLS FOR USING AN ISP

  • Overcharging

  • Domain Name Status

  • Backup

  • Contractual Language


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FREQUENTLY ASKED QUESTIONS

  • What is involved in registering a domain name in .com, .net or .org?

  • How long does a registration last? Can it be renewed?

  • Can one change registrars after registering a domain name?


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Application service Provider ( ASP)

  • Consists of two unique service components

  • Website hosting and delivery

  • Application technical support : providing end-to-end connectivity support


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Application service Provider ( ASP)

  • Most features of ASP

    • Owns and operates a software application

    • Owns, operates, and maintains the servers that run application

    • Employ the staff that to maintain the application

    • Makes the application available to customer everywhere via internet


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Chapter 6Internet Service Providers—Hosting Your Web Site


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