What is a DNS what is it for and how does it work? Understanding the Domain Name System

The term DNS ( Domain Name System ) refers to the domain name system on the Internet.

That is, they are responsible for translating a domain name that we have searched for in the browser into an IP.

For example, all the content of your website is hosted on a hosting, and in turn. This web hosting is within a server with its own IP address.

This Domain Name System has a structure

DNS Clients: refers to any user who makes a request from their device over the network.
DNS servers: These are machines responsible for serving and responding to requests from those clients.
Authority zone: these are the servers that are dedicated to managing a set of specific domains
DNS is responsible for converting a server name (www.lucushost.com) into an IP address (83.34.8.203) compatible with the device.

Every device on the Internet is assigned an IP address, which is necessary to locate the right device on the Internet. For example, it is like using a street address to find a specific location.

Once a user wants to load a website. What they type into the web browser must be translated into an address. That the computer understands in order to find the website. Dns functionwhat are the types of dns records.For domain name resolution, it is necessary to look up Domain Name System records in the DNS server database.

Below, I will show you the different types of records

For example, you can have “www.yoursite.com” and “blog.yoursite.com” pointing to “yoursite.com”.

4. MX Record (Mail Exchange)
Basically, it tells you where to send emails addressed to your domain .

This record indicates the location of the domain or subdomain’s email service. It will also point to a domain, not an IP address.

Likewise, it is necessary to establish a priority for MX records, since you may have multiple MX records for the same domain.

Essentially, a WhatsApp number database is a list of phone numbers that companies may utilize for platform-based targeted messaging whatsapp number database advertising. User sign-ups social media interactions, and even third-party services. That provide pre-made lists can all be used to create this data.

whatsapp number database

TXT records are useful for adding text to the DNS zone of the domain .

Cell p datathey are used to perform checks or configure. The domain’s spf (sender policy framework). This record indicates the ip addresses. That are allowed to send emails through the domain.

It is used to perform reverse lookups. Mapping an ip address to a domain extension .

While more common records, such as a or . Are used to translate domain names to ip addresses. The ptr record does the opposite. It translates an ip address to a domain name.

Identifies the servers that have the DNS information for the domain , which is essential for directing Internet traffic to the correct servers.

Defines authoritative information about the domain.

This record tells which nameservers are authoritative for the domain: from the primary name server name, the email address of the domain name administrator to the zone file version and other parameters.

Here are some examples of DNS records.

The combination and use of these records international seo depends on the specific requirements of your network infrastructure and DNS service provider.

What is a DNS server?
DNS server is a program that transfers IP addresses to domain names .

Each domain must have DNS servers, as these are responsible for transferring both domain names and subdomains to their corresponding IP address.

How does a DNS server work?

A Domain Name System server is essential in the Internet infrastructure to translate domain names through IP addresses.

The DNS server operation process requires several stages:

1. Initiation of the consultation
When you type a domain name into a canada email lead browser, your computer performs a DNS query to convert that name into an IP address.

2. Query the local server

This local server has a pre-existing Domain Name System database.

Since information is provided through the root servers. A query is made to the top-level servers (TLD). Obtaining information about a specific domain.

7. Updating the local cache
TLD servers contain information about the authoritative servers that operate in the second-level domain.elivering the response to the user.

Response from authoritative servers

Authoritative servers receive the required information, such as the IP address linked to the domain name.Local Cache Update
Delivering the response to the user
Ultimately, the user receives the IP address of the device so that the web browser can connect to the corresponding web server.

This process ensures fast domain name resolution, allowing users to access websites using readable names instead of memorizing numerical IP addresses.

DNS Server Operation

Below, I show you the main servers used for Domain Name System resolution.

Primary server: This server is responsible for querying other servers on behalf of the client.
Root Server: This is responsible for translating and resolving the domain name into an IP. The root server is also located at the highest level of the DNS hierarchy.

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