How to Fix DNS Server Error?
By Gowdham Subramaniam | December 6, 2017
What is a DNS server error?
DNS Server error is the communication error between the web server and your local browser. Normally when you browse for a website it will fetch data’s from the webserver where the website is hosted. If there is any block, misconfiguration or anything happened during the communication between browser and web server, then you will see this error on your Screen.
If you have changed the configuration on your web server or DNS records then that might be the issue. You should know about the DNS terms before making changes on DNS records.
DNS – Domain Name System
DNS is the Domain Name System using which the internet protocol address is assigned to the domain names. Each computer connected to the internet must have IP Address and it is the combination of Numbers and dots.
As the IP Address is assigned to the individual domain, we can open the website using the IP Address also. But the reason behind the domain name is that it will be easy for humans to remember the words than the numbers.
It is not a possible matter to remember the IP Address of all the websites like remembering the domains names of the websites.
How DNS works?
When a browser requests to load a domain name, it is converted into IP Address to find the exact location and then the content is loaded through the Internet Service Provider (ISP) with the help of HTTP (HyperText Transfer Protocol). You should know about DNS to understand the exact error that’s showing on your system screen.
What causes the DNS server error?
If a DNS Server is not able to convert the IP Address into domain names, then there occurs an error called DNS Server Error. There are several possible reasons behind this error. The error may occur due to a problem in Local or Remote.
The possibilities of the Error in Remote is due to the authentication problem in the web server and if the error is in local, then the possibilities of the error may be due to Internet Connectivity Issue.
Normally in a server, the incoming and outgoing data’s will be monitored and controlled by the firewall in your system. Sometimes the firewall may block by the server due to its configuration or settings. So to solve this problem, just open the control panel in your system and go to windows firewall settings.
Check whether the browser is added in the exception tab, if not click on add program and select the browser which is displayed in the list of programs. After selecting the browser click on OK. Then go to add port, in name enter HTTP and enter the port number 80.
Also sometimes it may be due to DNS Cache Error and which can be resolved by Flush DNS.
How to fix the DNS server error?
- Clear the Local DNS Cache
Below are the steps to clear the Local DNS Cache in Windows-based operating system. You can also check how to clear the Local DNS Cache in a Mac Os.
To do it in Windows, Open the Command Prompt in your computer and enter “ipconfig /flushdns“. Also clearing the history and cookies may solve the problem. If the error is due to internet connectivity or the DNS Setting for the Internet Connection, then Contact the ISP and verify the details.
- Check DNS Configuration in Your Web Server
Sometimes the Server DNS may be the reason for such errors. Normally, it happens only for recently hosted or migrated websites.
If that’s the case, then the problem may be on the server DNS configuration. If you have the WHM access, then you can check it by yourself. If you have cPanel access alone, then you should request the hosting provider to check the DNS of your website.
If you are using custom nameserver, then the error will not be on the server end. If you are using child or private nameserver then there may be the possibility for such errors.
Hope this gave you the knowledge. If you need support, you can ask our live chat support to help you with rectifying and sorting out your DNS issues.