subject: What Causes Dns Error? [print this page] Remember those days when we had dial up connection due to which it was not possible to access the internet services everywhere and we had to stick to our workplace. But with the advancement in Science and Technology Now we have wireless technology which has enabled us to use internet everywhere we need. Now everybody is fully or partially dependent on the internet for information.
Most of the people face problem while using internet and they have the misconception that only virus or malware is the reason for the internet connection failures but there also some fatal error like DNS error which inhibits them to access internet. DNS error is one of the most common problems. DNS error inhibits the user to get access to the resources available on the internet. DNS stands for Domain Name Service (server or system). DNS is one of the most essential services available on the internet which is designed to translate host names written by user in address bar to IP (internet protocol) addresses which are numeric in nature. The Host name is alphabetical in nature for the convenience of user and the IP addresses are numerical which is designed for the identification of a particular computer/network. For instance, an address of any website like www.asdvpt.com will be translated into an address like '10.58.255.94'.DNS error term is assigned to a computer problem which arises when the computer is not able to convert the website address into a numeric IP address. This translation makes it possible to establish a connection between the host computer and web server.
Most of the people are not aware of the DNS error and its cause which creates obstacles in their work. In this article I will let you know about the DNS error causes which are as follows:
Network Connectivity Problem: In most of the cases DNS error arises due to network connectivity. The NIC (Network Interface Controller) failure is the reason of this problem which is debars your computer connected to the computer network.
Local Name resolution failure: When network connectivity exists then local name resolution failure can become one of the causes to impulse DNS error.
DHCP Configuration error or router failure: Sometime it may happen that a DNS error affects only a limited number of computers on the network segment. Then the DHCP configuration error or router failure could be the reason for DNS error.
Unbalanced Load on DNS server: In the big organizations there is a common practice to distribute the workload of highly demanded web server into multiple identical web servers in round robin fashion by using a load balancing technique. This process is also known as DNS Round Robin. The drawback of this technique is that there is no way to determine the failure of web server. So if a web server fails then the intermittent connectivity problems to the load balanced resource.
Internet Name resolution Failure: When you are assured that internet requests are working but still internet requests are failing. Though DNS server uses the root hints for internet name resolution, check if your DNS server is using forwarders. Error in the forwarders would restrict your link request to an ISPs DNS server. And if the ISPs DNS server goes down then internet name resolution will cease functioning as the entries in the resolver cache expire.
Virus: Some of the deadly virus affects the computer and they integrate themselves with the TCP/IP stack and corrupt all the name resolution requests. It appears to be DNS error but virus infection is the reason for the problem.
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