DNS Settings in Windows® 7
How to configure DNS settings in Windows 7? Discuss the issues that arise while configuring DNS settings?
Windows 7 is the user-friendly and reliable operating system. Most of the branded computer manufacturers like Dell, IBM and HP recommend Windows 7 as it delivers high performance. Domain name system (DNS) is responsible for opening websites on your web browser. Each website you open on your computer is loaded on a web server and every web server has an IP address. When you type a web address on the browser, the web browser connects to DNS server. DNS server, in turn, converts the website address to IP address and connects you to the respective web server and the website is loaded. Usually the DNS server is hosted by Internet service providers but if your computer is a part of a computer network which hosts websites and web applications, you will have a DNS server in your computer network. In short the role of a DNS server is to convert the IP address to a domain name and domain name to an IP address to establish an effective medium of communication. Websites usually do not get loaded if DNS is not working or not configured.
Following are the issues that occur while configuring DNS settings in Windows 7:
- Driver issue
- Connection failure
- DNS poisoning
To configure DNS settings, you require a LAN or modem driver to be installed on the computer. If the network card or modem is not installed, the configuration of DNS settings is not possible. A LAN or modem driver is a program that helps the operating system to identify the network card or Internet modem. They bind the network card with network services like network protocol, DNS settings and file & printer sharing.
There are two ways of configuring DNS; either you can set it to obtain the DNS address automatically or you can specify the IP address of the server which runs DNS service. The DNS configuration depends on your Internet service or network type. Once you configure the DNS, the computer would automatically search for the DNS server or connect to the specified DNS server. If DNS server has an outage or connectivity problem, webpages will not upload or no web applications will work.
DNS poisoning is an infection. It changes the DNS settings to redirect you to malicious websites. The computer will not be able to connect to the original DNS server or will not obtain the manual configuration. To avoid such issue, you can scan the computer with an updated antivirus program or try to reset the DNS by executing a command “IPCONFIG /FLUSHDNS’ from the command prompt.
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