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What is DNS and How DNS Works?

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  • What is DNS and How DNS Works?

    Hello,

    I am new to web hosting and confused what is role of DNS and how it works.

    Thank You
    SwiftNode

  • #2
    DNS stands for Domain Name System. It controls your domain name's website and email settings. When visitors go to your domain name, its DNS settings control which company's server it reaches out to.

    By default, It send UDP packet and usually DNS server works on port 53.

    DNS service must translate the name into the corresponding IP address. For example, the domain name www.w4webhost.com might translate to 69.30.211.123.

    Some for the important records of DNS are:
    A record return IPv4 address.
    MX record returns Maps a domain name to a list of message transfer agent for that domain.
    AAA record return IPv6 record.

    To check DNS information about a domain. You could use www.intodns.com

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    • #3
      Originally posted by Swiftnode View Post
      Hello,

      I am new to web hosting and confused what is role of DNS and how it works.

      Thank You
      SwiftNode
      Domain Name System (DNS) manages the names of public websites and internet domains. It controls your domain name’s website and email settings. Whenever a visitor goes to your domain, DNS settings will control which server it will reach out to. It matches the name of the website (its domain) to the address for that same website (IP Address).

      How does it work?

      DNS is based on the client-server network architecture. Your web browser is like a client (DNS Resolver) and it requests your ISP’s DNS servers when you navigate through the websites.

      Whenever a DNS server receives a request, it temporarily behaves as a DNS client. The server passes the request to another DNS server (as a client) and this process continues until the request arrives at a server of matching IP address. Then the response flows back through the chain of DNS servers to the original client, that is, your browser.

      Comment


      • #4
        DNS is a server which stands for Domain Name Server .The main reason behind the working of the website is DNS server which points the IP of the domain to the server .It is used to resolve the MX record ,A record ,PTR record and many more things of a website .

        How does it work?

        DNS is based on the client-server network architecture. Your web browser is like a client (DNS Resolver) and it requests your ISP’s DNS servers when you navigate through the websites.

        Whenever a DNS server receives a request, it temporarily behaves as a DNS client. The server passes the request to another DNS server (as a client) and this process continues until the request arrives at a server of matching IP address. Then the response flows back through the chain of DNS servers to the original client, that is, your browser.

        Comment


        • #5
          Originally posted by Swiftnode View Post
          Hello,

          I am new to web hosting and confused what is role of DNS and how it works.

          Thank You
          SwiftNode
          Domain Name System (DNS) manages the names of public websites and internet domains. It controls your domain name’s website and email settings. Whenever a visitor goes to your domain, DNS settings will control which server it will reach out to. It matches the name of the website (its domain) to the address for that same website (IP Address).

          How does it work?

          DNS is based on the client-server network architecture. Your web browser is like a client (DNS Resolver) and it requests your ISP’s DNS servers when you navigate through the websites.

          Whenever a DNS server receives a request, it temporarily behaves as a DNS client. The server passes the request to another DNS server (as a client) and this process continues until the request arrives at a server of matching IP address. Then the response flows back through the chain of DNS servers to the original client, that is, your browser.

          Why are they used?

          Domain names are alphabetic and they are easier to remember as compared to stream of numbers in the IP Address. Every time you use a domain name, the DNS service translates the name to the corresponding IP address thereby making the web address convenient.

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