IP

IP ADDRESS

An IP address is a unique number that identifies a resource in a network. The first part of the IP address identifies the network in which the host resides, and the second part identifies the host in the network. This can be explained in the context of the postal system. The postal address on a letter has the complete address of the receiver, including the house number, street name and number, city, and state. Using this address, the postal system identifies the exact house or office for delivering the letter.

1. Move the cursor to the bottom right of the screen to display the Charms bar, and then select Search . The apps page is displayed on the screen, with the Search pane on the right side.
2.  Select Settings in the Search pane , and then type Network and Sharing Center in the search box. The results are displayed in the Settings screen. 
3. Select the Network and Sharing Center tile from the results. The Network and Sharing Center window is displayed. 
4. Click the Change adapter settings link in the left pane. The Network Connections window is displayed. Right-click the active network adapter, and then select Properties . 

If the User Account Control dialog box is displayed, you need to provide the administrator credentials. If you already have the administrative rights, then you need to click the Yes button.
 5.Select the Internet Protocol Version (TCP/ IPv4) option under the This connection uses the following items section.
6. Click the Properties button. The Internet Protocol Version 4 (TCP/IPv4) Properties dialog box is displayed.
7.Ensure that the Use the following IP address option is selected.
8.Type the IP address provided by tech support in the IP address text box. Type the Subnet mask provided by tech support in the Subnet mask text box.
9.Subnet mask is used to define the network and host portion of an IP address.
10.Type the default gateway provided by your ISP in the Default gateway text box.
11.Ensure that the Use the following DNS server addresses option is selected.
12. Type the preferred DNS server provided by your ISP in the Preferred DNS server text box.
13.Click the OK button.
14.Click the Close button.

NOTE

Domain Name Server (DNS) address is used to define the servers that maintain the database, which maps IP addresses with the domain name of the servers, such as yahoo.com, and Universal Resource Locators (URLs) of websites, such as www.yahoo.com. DNS is used to perform one simple task of converting IP addresses to domain names that can be easily understood by everyone. It can be compared with the phone book. For example, if you know someone’s name but do not know his/her number, you can look up in the phone book to search for the number. DNS provides the similar service. For example, when you use the URL in a Web browser to visit a Web site, the computer uses the DNS service to retrieve the IP address of the site.