Introduction to Data Communications and Networking

ECT 373

Lab 5

Due: 4/2/2014 Points: 30

Activity 1

Install and Configure IIS

Install Internet Information Services (if not installed)

Microsoft Internet Information Services (IIS) is the Web service that is integrated with Windows Server 2003. To install IIS, add optional components, or remove optional components, follow these steps:

1. ClickStart, point toControl Panel, and then clickAdd or Remove Programs. The Add or Remove Programs tool starts.

2. ClickAdd/Remove Windows Components. The appears.

3. In theWindows Componentslist, clickApplication Server, but do not select the check box.

4. ClickDetails, and then click to select theInternet Information Services (IIS)check box.

5. ClickDetailsto view the list of IIS optional components.

6. Select the optional components that you want to install. By default, the following components are selected:

Common Files

Internet Information Services Manager

World Wide Web Service

7. ClickWorld Wide Web Service(but do not clear the check box), and then clickDetailsto view the list of IIS optional subcomponents, such as theRemote Administration (HTML) Tool. Select the optional subcomponents that you want to install. By default, the following component is selected:

World Wide Web Service

8. ClickOK, clickOK, clickOK, and then clickNextto install the selected components.

9. ClickFinishto complete the Windows Components Wizard, and then close theAdd or Remove Programsdialog box.


Basic Web Site Configuration

1. ClickStart, point toAdministrative Tools, and then clickInternet Information Services (IIS) Manager.

2. UnderComputerName(local computer), expandWeb Sites.

3. Right-clickDefault Web Site, and then clickProperties.

4. Click theWeb Sitetab. If you have multiple IP addresses assigned to your computer, click the IP address that you want to assign to this Web site in theIP Addresslist.

5. Click thePerformancetab. Use these options to set the Web site properties that affect memory, bandwidth use, and the number of connections to the Web site. By configuring network bandwidth on a particular site, you can better control how much traffic there is at that site. For example, by restricting bandwidth on a , you can restrict bandwidth to allow increased access to other sites. Likewise, when you specify the number of connections to a Web site, you free resources for other sites. Settings are site-specific and you can adjust them as network traffic and use changes.

Click to select theLimit the network bandwidth available to this Web sitecheck box to configure IIS to throttle network bandwidth to the amount selected in theMaximum bandwidth (in kilobytes per second)box.

UnderWeb site connections, clickUnlimitedto permit unlimited client connections to this Web site, or clickConnections limited toand enter the number of connections you want to limit this Web site to. Limiting connections permits computer resources to be used for other processes.NoteEach client that browses the Web site typically uses about three connections.

6. Click theHome Directorytab.

If you want to use Web content that is stored on the local computer, clickA directory located on this computer, and then type the path that you want in theLocal pathbox. For example, the default path is C:Inetpubwwwroot.NoteFor added security, do not create Web content folders in the root folder.

If you want to use Web content that is stored on a different computer, clickA share located on another computer, and then type the location that you want in theNetwork directorybox that appears.

If you want to use Web content that is stored on another Web address, clickA redirection to a URL, and then type the location that you want in theRedirect tobox. UnderThe client will be sent to, click to select the appropriate check box.

7. Click theDocumentstab. Note the list of documents that IIS can use as the default start document. If you want to use Index.html as your start document, you must add it. To do this, follow these steps:

g. ClickAdd.

g. In theDefault content pagebox, type Index.html, and then clickOK.

g. Click theMove Upbutton until Index.html is displayed at the top of the list.

1. ClickOKto close theDefault Web Site Propertiesdialog box.

1. Right-clickDefault Web Site, and then clickStop.

1. Right-clickDefault Web Site, and then clickStart.

The server is now configured to accept incoming Web requests to the default Web site. You can replace the content of the default Web site with the Web content that you want, or you can create a new Web site.


Activity 2




1 Laptop with wireshark

1 Windows Server 2003

A switch


Capture HTTP and TCP traffic

1. Run the Wireshark software. From theCaptureMenu clickStart. In the window that pops up choose the appropriate network interface and ClickOk.

2. Generate HTTP traffic by making a request to the IIS server. To make a request, go to a web browser on the laptop and type the ip address of the windows server machine. If IIS is configured properly to accept request at port 80, you will see the web page being transferred to the laptop.

What is the sequence number of the TCP SYN segment that is used to initiate the TCP connection between the client computer and the server? What is it in the segment that identifies the segment as a SYN segment?

What is the sequence number of the SYNACK segment sent by server to the client computer in reply to the SYN? What is the value of the Acknowledgement field in the SYNACK segment? How did the server determine that value? What is it in the segment that identifies the segment as a SYNACK segment?

What is the length of each of the first four TCP segments?

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