Computer Science, asked by jainam7701, 7 months ago

When you make a DNS query, where does your computer first check to find an IP address to name mapping?

Answers

Answered by Anonymous
4

Explanation:

DNS stands for Domain Name System (DNS) services. When we access a website, we are using DNS to locate the server where the domain’s website is located. When browsing the web, we usually type in a domain name like www.google.com into our browser. This is better than trying to remember an IP address linked to a Google server. Behind the scenes, a conversion happens using this service which converts www.google.com to 172.217.12.46. The IP address designates the location of a server on the Internet. This conversion process is called a query. This is an integral part of how devices connect with each other to communicate over the internet. To understand the query process, let’s review how this query works.

DNS Lookup Process

Step 1: Requesting Website Information

Let’s visit a website by typing a domain name into a web browser. Our computer will start resolving the hostname, such as www.liquidweb.com. Our computer will then look for the IP address associated with the domain name in its local DNS cache. This cache stores this information that our computer has recently saved. If it is present locally, then the website will be displayed. If our computer does not have the information, it will perform a DNS query to retrieve the correct information.

Answered by jhangir789
0
  • Domain Name System (DNS) services are what DNS stands for. When we visit a website, we use DNS to find the server that hosts the domain's website.
  • We normally type in a domain name like www.google.com into our browser when we go online. This is preferable to trying to recall an IP address associated with a Google server.
  • Behind the scenes, a conversion of www.google.com to 172.217.12.46 is performed utilising this service. The IP address identifies a server's location on the Internet. A inquiry is the name for this conversion procedure.
  • This is an important aspect of how devices communicate with one another over the internet. Let's have a look at how this query works to better grasp the query process.

DNS Lookup Process.

Step 1: Requesting Website Information.

  • Let’s visit a website by typing a domain name into a web browser. Our computer will start resolving the hostname, such as www.liquidweb.com.
  • Our computer will then look for the IP address associated with the domain name in its local DNS cache. This cache stores this information that our computer has recently saved. If it is present locally, then the website will be displayed. If our computer does not have the information, it will perform a DNS query to retrieve the correct information.

How do I find the IP address of a DNS name?

  • Open the “Command Prompt” and type “ipconfig /all”. Find the IP address of the DNS and ping it.
  • If you were able to reach the DNS server through a ping, then that means that the server is alive. Try performing simple nslookup commands.

How do I find my DNS name?

  • To see your current DNS settings, type ipconfig /displaydns and press Enter.
  • To delete the entries, type ipconfig /flushdns and press Enter.
  • To see your DNS settings again, type ipconfig /displaydns and press Enter.

How do DNS queries work?

In general, the DNS query process occurs in two parts:

  • A name query begins at a client computer and is passed to a resolver, the DNS Client service, for resolution.
  • When the query cannot be resolved locally, DNS servers can be queried as needed to resolve the name.

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