DNS or Domain Name Server is what makes the widespread use of the internet possible. You see, when you type a URL into your web browser such as www.Google.com or www.YouTube.com or even www.yahoo.com, you computer does not know what to do with this information. Networking devices such as routers and switches work with IP addresses. When you type a website into your web browser your computer basically sends a signal to your internet service provider's domain name server. This signal basically says to match the website you typed in with an IP address. The request for the website you then requested is sent to the appropriate IP address.
Domain Name Servers make it possible to easily remember multiple websites. You have to admit it's much easier to remember: yahoo.com, google.com, bing.com, ebay.com, facebook.com, howstuffworks.com instead of their IP address equivalents of: 98.138.253.109, 74.125.225.104, 66.152.109.30, 66.135.205.13, 173.252.100.16, and finally 107.21.49.125. Go ahead try it for yourself, copy and past one of those IP addresses into you web browsers address bar instead of the usual www.yahoo.com. It will bring you to the same exact websites but it's much easier to remember names instead of numbers. It's much more easier to remember a URL than an IP address, however since networking devices work with IP addresses, DNS servers are needed to solve this problem.
the DNS
Domain name system is an application layer service . DNS provides mapping between addresses and names . DNS is what maps URL to the Addresses .
DNS provides mapping of ip addresses to name. DNS is short from of Domain name system . DNS provides name to Ip address and that name is called as URL.
What resolves a website URL to an IP address? DNS Sever
You are getting the dns error because ther is no website or URL with the name ydhmrxd.com so dns cannot resolve it to any IP so its shows an error.
You'll need to go through the company's (that which you bought the URL from) service DNS management tool and change the configuration to match the web hosting DNS. You can contact both services support and ask for their assistance.
It's called DNS server.
In information technology, DNS stands for "Domain Name Service." It translates URL addresses such as "answers.com" into octal IP addresses like 192.41.64.65.
A DNS address is the address to a server that converts a URL to an IP address. Most DNS address' are provided by your ISP, although there are many free DNS servers available.
HTTP, FTP and DNS instantly jump to mind as highly common URL Schemes.
a hyperlink is an URL that you click on to go to the URL
path name, host name then dns