If you have been looking for some hints or ways to fix a DNS
server error, this article offers you some help in that matter. Read on and get
to know what this error means and how it can be rectified effectively.
DNS stands for "Domain Name System", which happens
to be a technique developed to assign IP (Internet Protocol) addresses to
domain names. It is more like the phone book of the Internet, which assigns
numbers to domain names of sites. Every computer connected to the Internet has
its own unique IP address which is a series of numbers separated by dots. Every
website is hosted on a web server and it has a unique IP address assigned to
it. You can open a website by directly typing in the IP address after "http://".
However, it is difficult to remember IP addresses for all
websites and easier to remember and recall domain names or host names of
websites. That is why the hierarchical domain name system was developed. This
system converts the domain names of websites that you type in the browser
address bar into IP addresses. At that point the web server, hosting that
website, is located and the page is served on your computer, once a connection
has been established to it through your ISP (Internet Service Provider) using
the "Hyper Text Transfer Protocol (HTTP)". A local DNS server,
implements this "IP address" lookup system for every ISP. In short
DNS is a sort of an interface which translates/interprets domain names into IP
addresses and vice versa.
A DNS server error occurs when the server can't resolve IP
address corresponding to the domain name you typed in the web browser. There
could be numerous reasons why you might get such an error. The error may be
local or remote. By local, I mean that the problem may have occur due to
Internet connectivity problems on your side. The problem may be remote in the
sense that the web server hosting that website may have some problems like lack
of authentication, which might be giving you the error. In this case, there is
no other option but to wait, till the problem is solved at the web server,
hosting the site.
How to check if the error is local or remote? Try opening
other websites and if they all open, with exception of one, which is giving you
the error, then the problem may be remote. If none of the web pages are getting
displayed, then you may have an internet connectivity issue. XBOX 360 or PS3
DNS error may occur due to faulty Internet connection settings in the connected
wireless router. In such cases, it is most likely that your Internet connection
is not working properly.
How to Fix a DNS Server Error?
There are many problems that may cause this type of an
error. Here are some of the basic things that you could do to rectify it.
Change Firewall Settings
The incoming and outgoing Internet data traffic to and fro
your personal computer is controlled by a firewall. Certain software programs
may be banned from accessing the Internet through firewall settings. Your
browser itself may have gotten blocked by the firewall. To resolve the issue,
go to the "Control Panel" and open the windows firewall settings.
Under "Exceptions" tab, if your browser isn't included, click on
"Add Program" and click on your browser in the list of programs that
open. Click on "OK". Open the "Add Port" option and enter
the name "HTTP" for name and put "80" for port number. With
that, your browser will be released from the firewall ban and your DNS server
error may be resolved. So whenever a DNS error is displayed, check out the
firewall settings.
Clear DNS Cache
Each time a site is opened in a browser, a request is sent
to the DNS server for IP address translation. The recovery of the IP address
information is stored on your computer in the "DNS cache". Next time,
when you enter the request for the same website again, the DNS information is
being retrieved from the cache itself, to save time and provide a faster
browsing experience. The contents of the DNS cache can be looked up by the
command - "ipconfig/displaydns" entered in the command prompt.
However, if there was an earlier unsuccessful attempt at
recovering IP address, that negative attempt information gets stored in the
cache too. So, subsequent attempts at opening the site may fail, as the
information may be recovered from the cache which has no information. That is
why, to resolve the issue, you need to clear your DNS cache by typing in the
command - "ipconfig /flushdns" in the command prompt. This may get
rid of the error message and the site may get loaded. In most cases, this
procedure should rectify the problem.
Clear Cookies & Browsing History
Also, clear the cookies and browsing history on your browser
that may be causing a problem in displaying the page. This may help in
resolving the error.
Check DNS Settings
Check the DNS settings for your internet connection. Get
information from your ISP about the right DNS settings and see to it that those
are entered correctly or match with your DNS settings. Entering the right DNS
settings might also rectify your problem.
A local error is certain to get fixed with any of the above
suggested fixes. If none of this works, contact your ISP for a resolution of
the problem, as the problem might be from their side, which is causing the
error.
0 comments:
Post a Comment