What is a DNS server?

What is a DNS server?  – A DNS server is a computer server that keeps a database of hostnames and public IP addresses. A DNS server is used when? As requested, these names to IP addresses. Specialized software and unique protocols are used for communication by DNS servers. You might come across a DNS server that is referred to by other names, like name server or domain name system server.

A DNS server is used when?

A DNS resolution system searches the Internet for the IP address associated with a domain name when someone types it into a web browser. Through a DNS server, the solver will perform a search.

When it determines the location of that IP address, it enables assets (such as images, pages, and other page objects) to be filtered for the user, allowing them to view a website in front of them.

Primary and Secondary DNS servers

On your router and/or computer, a primary and secondary DNS server are typically configured. the moment you are linked to your Internet service provider (ISP). In the event that one of the two DNS servers fails, the second one is used to resolve the entered hostnames.

What settings does the DNS server have?

The router acts as a gateway between the device and DNS, sending IP queries to the ISP’s DNS servers to determine where the website assets are stored. ISPs frequently run their own DNS servers.

In DNS Records (NS, A, MX, CNAME, SPF)

The following are the most typical DNS record types and their uses:

A: Indicate the IP addresses for your domain and all of its subdomains.

MX: Indicate the destination for emails from your domain.

CNAME: Subdomain redirects from your domain to other domains or subdomains are specified by the CNAME record.

TXT: Text-based information about your domain is stored in these records. SPF data has a lot of uses, among them. Sender Policy Framework, or SPF.

Security Issues with DNS Servers

When manipulators take over DNS servers, they can direct dependable victims to unsafe websites.

Although the IP address has been altered to look like the original website, they seem to be the one you are attempting to access.

You should make sure that your antivirus are up to date to prevent falling prey to such scams.

It’s best to avoid visiting a website if you receive a warning about a “invalid certificate,” especially if you need to provide sensitive information. information.


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